Monitors / Compare

Dell Alienware AW2521H vs Dell 24 240Hz Adjustable Stand Monitor SE2426HGS

A

Product A: Dell

Alienware AW2521H

106 of 172 known

Change Dell Alienware AW2521H

Compare the Dell 24 240Hz Adjustable Stand Monitor SE2426HGS with

Search monitors

B

Product B: Dell

24 240Hz Adjustable Stand Monitor SE2426HGS

78 of 172 known

Change Dell 24 240Hz Adjustable Stand Monitor SE2426HGS

Compare the Dell Alienware AW2521H with

Search monitors

All 172 fields

Every value links to where we found it.

Only differences

ADell Alienware AW2521H

BDell 24 240Hz Adjustable Stand Monitor SE2426HGS

General

6 of 8 differ

Series

Alienware1Maker product pagedell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycbRead 5 October 2026

Not available

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

AW2521H, AW2521Hb1Maker product pagedell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycbRead 5 October 2026Exact marketing and regulatory models independently read on own original guide cover.2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own exact cover marketing/regulatory model names, not inferred from a sibling suffix.

SE2426HGS, SE2426HGSc, KWDW61Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026Exact US maker product SE2426HGS, manufacturer part KWDW6. Regulatory model SE2426HGSc is separately identified by the original user guide. SE2426H, SE2426HS, SE2426HG and the larger SE2726HGS are distinct models.

GTIN / EAN

8841163833697Retailer pagegamestop.com/pc-gaming/monitors/pc/products/alienware-aw2521h-25-in-fhd-1920x1080-360hz-1ms-g-sync-compatible-gaming-monitor/311805.htmlRead 7 October 2026Exact AW2521H new US retail reference. European EAN 5397184409541 not asserted for the US package. Refurbished Best Buy GSRF code 400064571209 excluded.

8841166953564Retailer pagemicrocenter.com/product/709231/dell-se2426hgs-238-full-hd-%281920-x-1080%29-240hz-gaming-monitorRead 8 October 2026Exact US Micro Center Product Information identifies manufacturer part KWDW6 and UPC 884116695356. KWDW6 independently matches the maker US page. No retailer warranty or rounded body measurements are imported.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

13 May 20205Press articleengadget.com/alienware-area-51-m15-m17-aurora-140007085.htmlRead 7 October 2026Original exact model preview on May 13, 2020. First public announcement, distinct from October pricing and November retail. Maker original May blog not recovered. May 18 TFTCentral article is later coverage.

Not available

Status

Not available

Available1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$899.994Press articlenotebookcheck.net/Alienware-announces-pricing-and-availability-for-its-new-gaming-monitors.497409.0.htmlRead 7 October 2026Original October 8, 2020 maker launch-price announcement reported by Notebookcheck. Exact 24.5-inch 360 Hz AW2521H. Independent same-day Tom’s Hardware launch report agrees. Subsequent sale prices excluded. Original maker page no longer exposes launch price.

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US, EU, AU, JP, CN4Press articlenotebookcheck.net/Alienware-announces-pricing-and-availability-for-its-new-gaming-monitors.497409.0.htmlRead 7 October 2026Original launch availability explicitly names these markets for November 2020. This records markets in which model was sold, not present stock. Japan actual maker release was December 2, 2020, later than the forecast. China already independently verified in original release source. Exact shared AW2521H model, not an AW2521HF regional SKU. China October 2020 availability also explicitly stated in same launch report.

US1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026Only the directly proved US KWDW6 reference is represented. No regional SKU equivalence is assumed.

ColoursiThe maker's own colour names

Dark Side of the Moon6Maker product pagedell.com/en-uk/shop/alienware-25-gaming-monitor-aw2521h/apd/210-ayclRead 7 October 2026Exact AW2521H maker colour. Lunar Light belongs to AW2521HFL 240 Hz, not this model. Matching global panel and housing reference, UK cable/warranty not transplanted.

Black1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026

SegmentiFrom the maker's own product category. Office also covers home and everyday monitors.

Gaming1Maker product pagedell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycbRead 5 October 2026

Gaming1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026Maker explicitly positions the fast IPS 240 Hz monitor for gaming and entertainment.

Display

8 of 12 differ

Screen sizeiDiagonal in inches exactly as the maker advertises it. A class size and the viewable diagonal can differ.

24.5in(62.2 cm)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

24in(61 cm)1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026Maker Screen Size Class 24 inches. Actual viewable diagonal is separately 23.8 inches.

Viewable screen diagonaliDiagonal of the visible image area. This can be smaller than the advertised class size.

24.5in(62.2 cm)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

23.8in(60.5 cm)1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026

Native resolution

1920 × 1080px2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

1920 × 1080px1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026

Aspect ratio

16:92Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

16:93Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

Pixel density

89.9ppi=CalculatedFrom Screen size and Native resolution

91.8ppi=CalculatedFrom Screen size and Native resolution

Pixel pitchiDistance between adjacent pixels. Source notes identify horizontal or vertical pitch if they differ. A horizontal figure about a third of the vertical one is the pitch of one subpixel, not of a pixel, so the pixel figure is stored.

0.2829mm2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own horizontal pitch 0.2829 mm. Separate vertical pitch 0.2802 mm is not put into this scalar. Active dimensions and pixel count agree at published precision.

0.2745mm3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p15 specification gives equal horizontal and vertical 0.2745 mm pitch.

Active display areaiMaker published active-display width and height, excluding the external frame. Source notes distinguish image area from any published shift-reserve area. Dimensions are not inferred from native resolution or rounded pixel pitch.

Width543.2Height302.6mm(21.4 × 11.9 in)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Width527.04Height296.46mm(20.7 × 11.7 in)3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own SE2426 HGS column, Monitor specifications printed p15: horizontal 527.04 mm and vertical 296.46 mm. Larger SE2726 HGS dimensions are excluded.

Curved

No8Retailer pagenewegg.com/black-dell-alienware-aw2521h-24-5/p/0JC-0004-00SV8Read 7 October 2026Exact AW2521H 360 Hz retailer table explicitly Flat Panel. No curvature radius zero inferred.

Not available

Curvature radiusiRadius of screen curvature. A published 1800R is 1800 mm.

Not available

Not available

Screen surface

Matte10Reviewpcmonitors.info/dell/dell-alienware-aw2521h-360hz-full-hd-ips-modelRead 7 October 2026Exact AW2521H descriptive source, consistent with maker anti-glare 3H. No named coating replacement.

Matte7Owner's manualdl.dell.com/content/manual83974256-dell-24-240hz-adjustable-stand-monitor-se2426hgs-user-s-guide.pdfRead 10 October 2026Table 7 on printed page 15 lists the display screen coating as Anti-glare with hard-coating 3H. Anti-glare is a matte surface.

Anti-reflection coating

Anti-glare with 3H hardness2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Anti-glare with hard coating 3H3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

Touchscreen

No9Retailer pagesenetic.co.uk/product/GAME-AW2521HRead 7 October 2026Exact GAME-AW2521H retailer table. Other template values conflicting with maker not adopted.

Not available

Panel

7 of 31 differ

Panel type

Fast IPS2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Fast IPS1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026Maker names the panel Fast IPS (stored as the panel type name). The Fast IPS name maps to the fast_ips option, as for the SE2726HG.

Panel type (as published)iPanel or technology name as published. This is separate from the normalised panel type.

Fast IPS2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Fast IPS1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026

BacklightiLayout of the backlight. OLED is none (self-emissive). WLED or LED alone names no layout, so it is left out unless a source states edge-lit or direct-lit.

Edge-lit LED2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Edge-lit LED3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

Local dimming

No11Reviewrtings.com/monitor/reviews/dell/alienware-aw2521hRead 7 October 2026Own tested exact AW2521H public HDR verdict explicitly has no local dimming. Maker Variable Backlight changes whole backlight intensity. It is dynamic/global backlight control, not independent local zones. DisplayNinja independently agrees. No zone count zero inferred.

No5Reviewrtings.com/monitor/reviews/dell/se2426hgsRead 8 October 2026Public exact-model HDR verdict explicitly states no local dimming. Tested 24-inch SE2426HGS on firmware M3C101, manufactured February 2026. Numeric lab results are locked and were not accessed. The 27-inch and SE2426H/HS/HG models are not used.

Dimming zones

Not available

Not available

Panel maker

AU Optronics10Reviewpcmonitors.info/dell/dell-alienware-aw2521h-360hz-full-hd-ips-modelRead 7 October 2026Exact AW2521H supplier explicitly named. AHVA is IPS-like AUO technology, not VA. Exact part number and panel generation not published.

Not available

Panel part number

Not available

Not available

Panel generationiGeneration or panel architecture name stated by the source. Brand product generation and panel generation can differ.

Not available

Not available

Subpixel layoutiArrangement of the red, green, blue and any white emitters within a pixel. Individual emitter shapes do not establish their arrangement. Marketing names such as Primary RGB Tandem do not prove an RGB stripe layout.

Not available

Not available

Colour depthiSupported total colour depth per channel. A stated 8-bit plus FRC implementation is 10 supported bits with FRC, not native 10-bit. A 6-bit plus FRC panel, also called Hi-FRC, is 8 bits with FRC.

8bits10Reviewpcmonitors.info/dell/dell-alienware-aw2521h-360hz-full-hd-ips-modelRead 7 October 2026Exact native panel statement. Supported high-bit input is not native 10-bit. DisplaySpecifications independently says 8 bits with FRC No. Epey 6-bit+FRC row is inconsistent with these specialist sources and appears template contamination.

Not available

Colour depth methodiNative panel bits or temporal frame rate control. Supported 10-bit input alone does not prove native 10-bit panel depth.

Native10Reviewpcmonitors.info/dell/dell-alienware-aw2521h-360hz-full-hd-ips-modelRead 7 October 2026Same explicit true 8-bit panel claim. Does not derive bits from 16.7 million displayed colours.

Not available

Displayable colours

16.7 million2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

16.7 million3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p15 gives 16.70 million display colours. Accepted per-channel bit depth and native versus FRC implementation are not explicitly stated.

sRGB coverageiPercentage of the sRGB reference gamut covered. Gamut volume is a different measure and is not stored here. Source notes identify the colour-space standard.

99%2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own 99% sRGB claim. CIE basis is unstated.

99%3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p15 maker typical sRGB 99%, CIE 1931. No gamut volume is stored.

DCI-P3 coverageiPercentage of DCI-P3 covered. Do not substitute gamut volume. Source notes identify the CIE reference and any minimum or typical qualifier.

Not available

Not available

Adobe RGB coverageiPercentage of Adobe RGB covered. Do not substitute gamut volume.

Not available

Not available

Rec. 2020 coverageiPercentage of Rec. 2020 covered. Do not substitute gamut volume.

Not available

Not available

NTSC coverageiPercentage of the NTSC reference gamut covered. Source notes identify the reference. Do not substitute gamut volume.

Not available

Not available

Factory calibrated

Yes15Reviewdisplayninja.com/dell-alienware-aw2521h-reviewRead 7 October 2026Exact descriptive calibration claim. Maker existing calibration accuracy target is ΔE2000 <1.5 average. Review measurement can vary and remains separate. No paper report claim inferred.

Not available

Claimed Delta EiMaker claim for colour error. Source notes retain a less-than qualifier, the colour space and whether the figure is an average or maximum.

1.52Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own average Delta E 2000 < 1.5 alongside sRGB 99% colour claim. Preset and detailed test conditions are unstated. This maker calibration target is not a reviewed colour-error result.

Not available

Paper calibration report in boxiA physical calibration report included in the package. An electronic report in the menu or software does not count as a paper report.

Not available

Not available

Hardware calibration supportiCalibration writes to the monitor internal hardware LUT. Ordinary colour controls or a computer ICC profile do not establish this feature.

Not available

Not available

Static contrast ratioiPanel native static contrast, without dynamic contrast processing or local dimming. 1000 means 1000:1. Do not store a dynamic contrast claim here.

1,000:12Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

1,000:13Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p15 typical panel contrast 1000:1. No measured or dynamic value substituted.

Brightness (typical, SDR)iMaker typical SDR white luminance. Source notes state any window size, average picture level and operating mode.

400nits2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

300nits3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p15 brightness 300 cd/m2 typical. No full-white window or test profile is stated.

Brightness (maker minimum)iMaker minimum guaranteed brightness specification under its stated conditions. This is not the lowest user-selectable brightness unless the source explicitly says so.

Not available

Not available

Peak brightness (HDR)iMaker peak HDR white luminance. The source notes state window size or average picture level, mode and time limit where published.

Not available

Not available

HDR peak test windowiPercentage of screen area used for the peak HDR claim. If the maker publishes average picture level instead, source notes identify that distinction.

Not available

Not available

Full-screen brightnessiMaker white luminance at 100% screen area or 100% average picture level. Source notes state SDR or HDR and mode.

Not available

Not available

HDR formats

HDR102Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Not available

HDR certificationiVESA DisplayHDR certification. None needs a source, such as the maker saying the monitor has no DisplayHDR certification or the model being absent from the VESA list. When no source was checked, it is left out.

Not available

Not available

Viewing angle (horizontal)

178°2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

178°3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

Viewing angle (vertical)

178°2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

178°3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

Refresh rate and motion

11 of 22 differ

Refresh rate per resolution and portiHighest accepted rate for each proven resolution, input and operating condition. Preset or supported timing lists alone do not prove a maximum. Keep separate bit-depth, chroma and DSC conditions. Dual-mode or crop-mode requirements belong in source notes. Unknown input stays unknown.

ADell Alienware AW2521H

Refresh rate per resolution and port. The top rate is in bold.

Resolution	HDMI 2.0	DisplayPort 1.4
1920 × 1080Native	240Hz	360Hz

Source2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own Resolution Specifications explicitly maximum native resolution at the stated DP and HDMI rates. Bit depth, chroma, DSC and lower-resolution maxima are unproved and omitted.

BDell 24 240Hz Adjustable Stand Monitor SE2426HGS

Refresh rate per resolution and port. The top rate is in bold.

Resolution	HDMI 2.1 TMDS	DisplayPort 1.4
1920 × 1080Native	240Hz	240Hz

Source3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p15 input connectivity explicitly supports up to native FHD 1920 x 1080 at 240 Hz on DP 1.4 and HDMI 2.1 TMDS. Maximum resolution explanation p17 independently gives 240 Hz on both. HDMI optional-feature exclusion explicitly rules out DSC. Bit depth, chroma, actual raw port bandwidth and other resolution maxima are unproved. Preset rows alone are not used as maxima.

Max refresh rateiHighest proven accepted rate across the stored modes, including lower-resolution dual modes.

360Hz=CalculatedFrom Refresh rate per resolution and port

240Hz=CalculatedFrom Refresh rate per resolution and port

Max refresh rate at native resolutioniHighest proven accepted rate at the native pixel resolution, across all inputs and stored operating conditions.

360Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

Max refresh rate over DisplayPortiHighest proven accepted rate over DisplayPort at native resolution. A higher lower-resolution dual mode is separate.

360Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

Max refresh rate over HDMIiHighest proven accepted rate over HDMI at native resolution. Console refresh limits can be lower than PC limits.

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

Max refresh rate over USB-CiHighest proven accepted rate over USB-C or Thunderbolt at native resolution. USB data bandwidth settings can lower the video maximum.

Not available

Not available

Max refresh rate at 10-bitiHighest stored native-resolution mode explicitly proven at 10-bit colour. Rows without bit-depth evidence do not count.

Not available

Not available

Native refresh rateiHighest refresh rate the maker rates without overclock. A lower optimum or recommended mode in a manual is not this value.

360Hz2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

240Hz3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

Overclocked refresh rate

Not available

Not available

Dual modeiA dedicated display mode that changes resolution to raise the maximum refresh rate. Ordinary image scaling or a preset timing does not count.

Not available

Not available

Minimum fixed refresh rateiLowest fixed input rate accepted by the monitor. A VRR lower limit or general vertical scan range is not this value.

Not available

Not available

Adaptive sync technologiesiExact published adaptive-sync protocol or named certification. Generic Adaptive-Sync support does not prove VESA AdaptiveSync Display certification. Source notes distinguish protocols from certifications.

G-SYNC2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own Product Features names the native NVIDIA tier. Generic scan intervals are not actual VRR ranges, and AMD compatibility or certification is not borrowed from similar models.

FreeSync Premium, HDMI VRR3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Product features p8 explicitly names AMD FreeSync Premium and HDMI VRR. Current maker US page also says Premium. RTINGS public intro says Premium Pro, which is contradictory and not transferred. HDMI protocol support does not independently prove HDMI Forum certification.

VRR range per portiVariable-refresh-rate operating range for each input and the operating mode named in source notes. A fixed timing or general vertical scan range alone is not a VRR range.

Not available

Not available

Low framerate compensation

Not available

Yes3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Exact original SE2426HGS/SE2726HGS user guide names AMD FreeSync Premium support. AMD defines low framerate compensation as a required capability of this named tier. No VRR floor or per-port operating range is inferred.6Maker product pageamd.com/en/resources/support-articles/faqs/DH3-013.htmlRead 8 October 2026AMD official FreeSync tier definition explicitly requires support for low framerate compensation in FreeSync Premium. This is applied only because the exact Dell original guide and manufacturer specification name that tier, not generic Adaptive-Sync.

Response time (maker GtG claim)iMaker grey-to-grey pixel transition claim. Source notes state fastest overdrive or other conditions where published.

1ms2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own fastest maker GtG 1 ms in Extreme, with potential visible artifacts. Super Fast 2 ms and Fast 3 ms are separate settings.

0.5ms3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p15-p16 footnote explicitly identifies 0.5 ms GtG as the minimum in Extreme mode. Separate 1.0 ms Extreme claim can cause artefacts. Neither is an average transition measurement.

Response time (maker MPRT claim)iMaker moving-picture response-time claim, often with strobing enabled. This is not a grey-to-grey transition time.

Not available

Not available

Overdrive settings

Fast, Super Fast, Extreme2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Fast, Super Fast, Extreme3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Response Time OSD printed p40 explicitly provides Fast, Super Fast and Extreme.

Motion blur reductioniA dedicated blur-reduction feature using backlight strobing or black frame insertion. OLED monitors have no backlight.

Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own NVIDIA ULMB paragraph supports only direct DisplayPort at fixed 144 or 240 Hz, not through a dongle/hub. It is not the normal 360 Hz operating mode.

Not available

Blur-reduction technologyiPublished name of the backlight strobing or black frame insertion feature.

NVIDIA ULMB2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Not available

Blur reduction works with VRRiWhether the dedicated strobing or black frame insertion mode can operate at the same time as variable refresh rate.

No2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own NVIDIA ULMB paragraph expressly requires Enable G-SYNC not selected in NVIDIA Control Panel.

Not available

Flicker-free (claimed)

Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Yes3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

Black frame insertion

Not available

Not available

Measured

3 of 12 differ

Input lag at maximum refresh rateiReviewer total display lag at the monitor highest accepted refresh rate, including a faster dual mode. Native-rate measurements below that maximum and processing-only delay are excluded. Source notes name the rate, resolution and test method.

Not available

Not available

Input lag at 60 HziReviewer total display lag with a fixed 60 Hz input. Processing-only delay is excluded. Source notes name the resolution, mode and test method.

Not available

Not available

Average response time (measured)iReviewer mean grey-to-grey transition time across tested transitions. Source notes state the measurement endpoint, method, refresh rate and overdrive. A single worst transition or an unaveraged settling time does not count.

Not available

Not available

Overshoot (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Contrast ratio (measured)i1000 means 1000:1. Measured by a reviewer

890.4:118Measurementtomshardware.com/reviews/alienware-aw2521h-360hz-monitor/2Read 7 October 2026Own exact AW2521H review uncalibrated maximum-backlight static white/black ratio, Custom Color mode per page 3 methodology, Variable Backlight off. Separate approximately 1300:1 dynamic and 918.9:1 ANSI excluded. Linked methodology full-field white/black patterns and ratio. LaptopMedia 1040:1 in Standard mode is a different picture condition, not silent replacement.

Not available

SDR brightness (measured)iReviewer measured SDR white luminance. Source notes state picture mode, window size and brightness setting where available.

440nits17Measurementlaptopmedia.com/review/alienware-aw2521hRead 7 October 2026Own AW2521H June 20, 2022 lab review: maximum white luminance at screen centre in Standard SDR mode. NVIDIA RTX 2060 display connection. Test-window percentage and meter model not named in public prose, not fabricated. Tom’s Hardware Custom Color sample just over 460 and Quasar 464.1 under different/unstated settings are not interchangeable maker replacements.

Not available

HDR brightness in a real scene (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

PWM flicker frequency (measured)iOnly when the reviewer found PWM flicker

Not available

Not available

VRR range (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Colour accuracy (measured Delta E)iReviewer average colour error before calibration. Source notes name picture mode, reference colour space and Delta E method. Post-calibration results are excluded.

2.433419Measurementtomshardware.com/reviews/alienware-aw2521h-360hz-monitor/3Read 7 October 2026Exact own AW2521H uncalibrated first colour chart explicitly reads Color Gamut - Standard, default and Avg dE2000 2.4334, with CIE1976 u′v′ geometry and sRGB reference. Specific chart identifies Standard/default, while generic prose says testing and calibration in Custom Color. This mode-label discrepancy is retained, not silently resolved. Out-of-box state is independently explicit in the adjacent text. Post-calibration 1.50 and grayscale 3.11 excluded.

Not available

Gray uniformity (measured)iDeviation on a 50 % gray screen. Measured by a reviewer

Not available

Not available

Reflections (measured)iTotal reflections. Measured by a reviewer

Not available

Not available

Connectivity

5 of 19 differ

Video inputsiPhysical connectors that accept a display signal. A USB-C data-only charging port is not a video input. Counts exclude USB hubs and audio jacks.

ADell Alienware AW2521H

Type	Version	Count
DisplayPort	1.4	1
HDMI	2.0	2

Source2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

BDell 24 240Hz Adjustable Stand Monitor SE2426HGS

Type	Version	Count	DSC	HDCP
DisplayPort	1.4	1	Not available	2.3
HDMI	2.1 TMDS	2	No	2.3

Source3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Complete inventory printed p14-p15: one DP 1.4, two HDMI 2.1 TMDS, HDCP 2.3 on both types. HDMI optional feature note expressly excludes DSC and several other optional 2.1 features. Raw link bandwidth is not stated. No FRL inferred.

HDMI ports

2=CalculatedFrom Video inputs

2=CalculatedFrom Video inputs

DisplayPort ports

1=CalculatedFrom Video inputs

1=CalculatedFrom Video inputs

Highest HDMI version

2.0=CalculatedFrom Video inputs

2.1 TMDS=CalculatedFrom Video inputs

Highest DisplayPort version

1.4=CalculatedFrom Video inputs

1.4=CalculatedFrom Video inputs

HDMI features

Not available

VRR3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

USB-C video (DP Alt Mode)

No2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no USB-C socket.

No3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Complete connector inventory contains no USB connector. Current maker table explicitly USB No and USB Type-C No.

USB-C power deliverediPower the monitor supplies to a connected device. Source notes distinguish guaranteed, maximum and shared dynamic limits. Power consumed by the monitor is separate.

Not available

Not available

Thunderbolt

Not available

Not available

USB upstream portsiUSB connections from the monitor hub to host computers. Video input and downstream charging ports are separate.

ADell Alienware AW2521H

Connector	USB version	Count
USB-B	3.2 Gen 1	1

Source2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

BDell 24 240Hz Adjustable Stand Monitor SE2426HGS

Not available

USB downstream hub portsiUSB hub connections for peripherals. These exclude host-facing upstream ports. A port the maker names for service or firmware updates only is not counted.

ADell Alienware AW2521H

Connector	USB version	Count
USB-A	3.2 Gen 1	4

Source2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own total four peripheral Type-A sockets, including one charging socket. Charging and Reflex functions do not add sockets.

BDell 24 240Hz Adjustable Stand Monitor SE2426HGS

Not available

KVM switch

Not available

Not available

Daisy chain (MST)

Not available

Not available

Ethernet

No2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no Ethernet socket.

No3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Complete connector inventory printed p14-p15 has no Ethernet socket.

3.5 mm headphone outputiAnalogue headphone or audio output. A shared four-pole headset jack counts.

Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own headphone port is separate from rear line-out, which explicitly does not support headphones.

Yes3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

3.5 mm microphone inputiAnalogue microphone input, including the microphone contacts of a shared four-pole headset jack. This does not imply a separate microphone socket.

No2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own complete physical inventory has analog output sockets only, with no microphone input.

No3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Complete connector inventory has a headphone output and no microphone input.

Optical out

No2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no optical audio socket.

No3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Complete connector inventory has no optical audio output.

Picture in picture

No13Revieweftm.com/2021/03/review-alienware-aw2521h-gaming-monitor-207972/ampRead 7 October 2026Own exact AW2521H hands-on explicitly no multi-input PIP/PBP support. Consistent with complete maker OSD feature inventory.

No7Owner's manualdl.dell.com/content/manual83974256-dell-24-240hz-adjustable-stand-monitor-se2426hgs-user-s-guide.pdfRead 10 October 2026The OSD chapter lists the Game, Preset Modes, Input Source, Display, Audio, Menu, Personalize and Others menus. It describes no picture-in-picture function.

Picture by picture

No13Revieweftm.com/2021/03/review-alienware-aw2521h-gaming-monitor-207972/ampRead 7 October 2026Same explicit sentence. Resolution switching does not mean simultaneous sources.

No7Owner's manualdl.dell.com/content/manual83974256-dell-24-240hz-adjustable-stand-monitor-se2426hgs-user-s-guide.pdfRead 10 October 2026The OSD chapter lists the Game, Preset Modes, Input Source, Display, Audio, Menu, Personalize and Others menus. It describes no picture-by-picture function.

Smart features

None of 4 known

Smart platform

Not available

Not available

Wi-Fi

Not available

Not available

Bluetooth

Not available

Not available

Remote control

Not available

Not available

Audio and camera

1 of 5 differ

Speakers

No12Reviewtomshardware.com/reviews/alienware-aw2521h-360hz-monitorRead 7 October 2026Exact 360 Hz AW2521H table and physical review state no internal speakers. No speaker count or per-channel power zero stored.

Not available

Number of speakers

Not available

Not available

Speaker power per channeliRated power per speaker or output channel. Do not store the total of all speakers here.

Not available

Not available

Webcam

Not available

Not available

Microphone

Not available

Not available

Ergonomics and controls

7 of 15 differ

Stand height adjustmentiVertical travel of the supplied stand. This is not the total height of the monitor.

130mm2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

110mm3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p15 adjustment table: 110 mm. Explicit highest and lowest body heights on p19 differ by 110 mm.

TiltiMaximum movement from the neutral position with the supplied stand. Each direction is stored as a positive magnitude.

Forward5°Backward21°2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Forward5°Backward21°3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own original technical table and supplied-stand diagram state tilt minus 5 to plus 21 degrees. Swivel has its own separately qualified manufacturer-claim and review-conflict note.

SwiveliMaximum movement from the neutral position with the supplied stand. Each direction is stored as a positive magnitude.

Left20°Right20°2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Left173°Right173°3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Exact original technical table identifies SE2426HGS and states swivel minus 173 to plus 173 degrees. Printed page 29 supplied-stand Figure 16 explicitly labels 173 degrees in each direction and says these instructions apply only to the shipped stand. Stored nominal per-side claimed mechanical swivel, not a viewing angle or total 346-degree scalar. The current public RTINGS intro instead states the supplied stand offers no swivel adjustment. This contradictory observation is preserved without claiming physical reconciliation.5Reviewrtings.com/monitor/reviews/dell/se2426hgsRead 8 October 2026Current public review intro says the supplied stand does not offer any swivel adjustment. This conflicts with the exact original Dell mechanical specification and supplied-stand motion diagram. The original manufacturer nominal 173-degree movement each side is retained as the claimed specification, without asserting the reviewer sample was physically reconciled. Full paid ergonomics results were not accessed.

PivotiMaximum movement from the neutral position with the supplied stand. Each direction is stored as a positive magnitude. Pivot is rotation in the screen plane. A small slant adjustment for levelling, as Dell calls it, counts.

Counterclockwise90°Clockwise90°2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Counterclockwise0°Clockwise0°7Owner's manualdl.dell.com/content/manual83974256-dell-24-240hz-adjustable-stand-monitor-se2426hgs-user-s-guide.pdfRead 10 October 2026Table 7 on printed page 15 lists Pivot as NA for the SE2426HGS. Stored as no movement in both directions.

Removable stand

Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Yes3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

VESA mount

100 x 1002Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

100 x 1003Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

VESA adapter needed

No14Owner's manualm.media-amazon.com/images/I/C1BEKAl2z0L.pdfRead 7 October 2026Maker VESA wall mounting page 36: remove stand and four plastic-cover screws, then directly attach compatible wall mounting bracket with specified M4 screws. No proprietary adapter required. Optional wall bracket is separate from adapter.

No3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026VESA wall mounting procedure removes the supplied stand and uses the exposed 100 x 100 threaded holes with separately purchased M4 x 10 mounting screws. No separate monitor adapter bracket is required.

Security lock slot

Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Yes3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026

On-screen menu controlsiControls that operate the monitor menu or display settings. Desktop window-layout software alone does not count as menu control.

Joystick, Buttons2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Joystick, Buttons3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Back view printed p13 identifies rear joystick and separate power button. Controls p36 describes the OSD joystick. Software OSD control is not inferred merely from generic DDC/CI support.

Desktop software

Alienware Command Center (AWCC)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own AWCC/AlienFX section controls LED lighting effects. It does not establish software control of the display OSD.

Not available

User firmware updates

Not available

Not available

Ambient light sensoriPresence of a physical ambient-light sensor. A regulatory statement that Automatic Brightness Control is unavailable does not prove the sensor is absent. Human presence or proximity sensing is separate.

Yes14Owner's manualm.media-amazon.com/images/I/C1BEKAl2z0L.pdfRead 7 October 2026Maker-authored AW2521H/AW2521Hb 2022 user guide. OSD page 52 explicitly says the ambient light sensor automatically adjusts backlight brightness, default Off and disabled for HDR. Physical presence is separately named by the maker reviewer sheet. Dell-hosted PDF routes were unavailable, and this public authentic guide mirror was downloaded and read independently.

Not available

Presence sensoriPresence of a person-detection or proximity sensor. Source notes distinguish room presence from near-screen detection. Absence of one kind does not prove absence of every presence sensor.

Not available

Not available

RGB lightingiDecorative illumination explicitly described as RGB or documented with selectable red, green and blue colours. A power LED or only one or two fixed colours is insufficient.

Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own AlienFX section explicitly supports RGB colour codes and effects across physical lighting zones.

Not available

Gaming menu features

Timer, Frame Rate, Display Alignment, Dark Stabilizer, NVIDIA Reflex Latency Analyzer2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own Reflex Latency Analyzer is a system-latency feature, not a monitor-only measured-lag value.

Timer, Frame Rate, Display Alignment, Dark Stabilizer3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Product features p8 and Game Enhance Mode p40 name these functions. Generic gaming picture presets are excluded.

OLED care

None of 3 known

OLED care

Not available

Not available

Burn-in covered by warrantyiWarranty explicitly covers permanent OLED image burn-in. A general panel warranty alone does not prove burn-in coverage.

Not available

Not available

Burn-in warranty length

Not available

Not available

Dimensions and weight

6 of 7 differ

Dimensions with standiOverall monitor dimensions with the supplied stand. Minimum and maximum heights require the stand position to be identified by the source.

Width556.3Height (lowest)421.2Height (highest)526.1Depth251.9mm(21.9 × 16.6 to 20.7 × 9.9 in)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own complete display width/depth are direct. Height endpoints come from the maker guide mirror listed below, which labels the overall envelope separately from the 130 mm panel travel.14Owner's manualm.media-amazon.com/images/I/C1BEKAl2z0L.pdfRead 7 October 2026Maker guide page 19 explicitly labels overall with-stand height: extended 526.1 mm, compressed 421.2 mm. Separate stand-only heights are 436.8/421.2 mm, and panel travel is separately 130 mm. Main approved literal overall endpoints without forcing their difference to equal panel travel.

Width538.84Height (lowest)401.96Height (highest)511.96Depth212.83mm(21.2 × 15.8 to 20.2 × 8.4 in)3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p19 column gives 538.84 x 511.96 extended / 401.96 compressed x 212.83 mm. Maker metric dimension diagrams independently agree.

Dimensions without standiOverall monitor body dimensions after the stand is removed, including the frame and rear housing.

Width556.3Height328.2Depth84.4mm(21.9 × 12.9 × 3.3 in)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Width538.84Height317.05Depth47.2mm(21.2 × 12.5 × 1.9 in)3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p19 body column gives 538.84 x 317.05 x 47.20 mm. Rounded imperial website dimensions do not replace exact metric table.

Stand footprintiWidth and depth of the stand base on the desk. A maker's stand width and depth count.

Width465.2Depth251.9mm(18.3 × 9.9 in)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own physical table stand width 465.2 mm and depth 251.9 mm, separate from panel-body width.

Width265.72Depth202mm(10.5 × 8 in)3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p19 table explicitly labels Base 265.72 x 202.00 mm. Total stand assembly depth 212.83 mm is distinct from the base footprint. Maker page has conflicting abbreviated stand-width text, so named Base table takes precedence.

Weight with standiWeight with the supplied stand. Source notes state if cables are included. Packaging weight is separate.

8.1kg(17.9 lb)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own weight with stand assembly and cables.

4.11kg(9.1 lb)3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p19 weight explicitly includes supplied stand assembly and cables: 4.11 kg. No cable mass is subtracted.

Weight without standiMonitor body weight without stand. Source notes state whether cables are included.

4.5kg(9.9 lb)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own no-stand/no-cable weight for VESA considerations.

2.72kg(6 lb)3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p19 weight for VESA use excludes stand assembly and cables: 2.72 kg.

Box dimensionsiShipping box width, height and depth in the maker published orientation. A flat-packed box can have a smaller height than the upright display.

Not available

Not available

Box weight

12.3kg(27.1 lb)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own packaged weight.

5.67kg(12.5 lb)3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p19 weight with packaging 5.67 kg. Larger 27-inch 6.27 kg row excluded.

Power

9 of 13 differ

Power supplyiUSB-C powered monitors can draw power from a compatible host or an optional USB-C power source. This does not establish a bundled adapter. Record a supplied adapter and its rating separately.

Internal2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Internal3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Complete p14 connector description and setup procedure connect a mains power cord directly to the monitor. The internal supply is distinct from an optional external adapter.

Adapter ratingiRated output power of the external power adapter. Do not substitute the monitor maximum consumption.

Not available

Not available

Input voltage

100-240 V AC, 50/60 Hz2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

100-240 V AC, 50/60 Hz3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p18 electrical table: 100-240 VAC, 50/60 Hz with 3 Hz tolerance. Current is an input rating and is not converted to watts.

Power use (typical)iMaker typical operating power under a stated test condition. An unlabeled Power On upper bound does not establish a typical value. EU label test power has separate fields. An ENERGY STAR on-mode (Pon) figure is not a typical value.

21.232W2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own Pon uses the Energy Star reference method. Separate EU on-mode value is not substituted for this claim.

Not available

Power use (max)iMaker maximum operating power. Source notes state whether USB charging and connected-device load are included.

83W2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own maximum brightness/contrast with maximum loading on all USB ports.

40W3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p18 maximum 40 W at maximum brightness and contrast. On-mode 14.0 W is a separate EU 2019/2021 and 2019/2013 statistic, not an unqualified typical value. No exact current EU product information sheet was found to assign SDR/HDR label cells.

Power use SDR (EU label)iSDR on-mode power demand in the EU product information sheet, in watts. It can differ from rounded energy-label kWh per 1000 hours.

19.1W2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own electrical on-mode value as defined in EU 2019/2021 and 2019/2013, separate from Energy Star Pon.

14W7Owner's manualdl.dell.com/content/manual83974256-dell-24-240hz-adjustable-stand-monitor-se2426hgs-user-s-guide.pdfRead 10 October 2026Table 11 on printed page 18 gives On Mode 14.0 W as defined in EU 2019/2021 and EU 2019/2013. That is the SDR on-mode figure of the EU label rules. No EPREL sheet was found, so the energy class and kWh fields stay empty. Same January 2026 Rev. A00 guide as the mirror source.

Power use HDR (EU label)iHDR on-mode power demand in the EU product information sheet, in watts. It can differ from rounded energy-label kWh per 1000 hours.

18.3W21EU energy label (EPREL)eprel.ec.europa.eu/api/product/364442/fichesRead 7 October 2026Exact AW2521H EU fiche row 6. EU label HDR on-mode test power, not US typical or peak consumption. Same model identifier and SDR 19.1, standby 0.4/off 0.3 agree original/current maker guide. No EU warranty or support term added.

Not available

Standby poweriPower in standby or DPMS. Source notes retain any less-than qualifier.

0.4W2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

0.3W3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p18 Standby Mode 0.3 W as defined in EU 2019/2021 and 2019/2013. The 27-inch 0.5 W value is excluded.

Off-mode poweriPower when switched off but still connected to mains. Source notes retain any less-than qualifier.

0.3W2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

0.3W3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Own p18 Off Mode 0.3 W, EU 2019/2021 and 2019/2013 definition.

EU energy class SDR

E21EU energy label (EPREL)eprel.ec.europa.eu/api/product/364442/fichesRead 7 October 2026Exact AW2521H EU2019/2013 energy classification under EU registration364442. Regional regulatory test scope.

Not available

EU energy class HDR

E21EU energy label (EPREL)eprel.ec.europa.eu/api/product/364442/fichesRead 7 October 2026Exact AW2521H EU2019/2013 HDR classification. No automatic conversion from power.

Not available

Energy per 1000 h SDR

19kWh22EU energy label (EPREL)eprel.ec.europa.eu/api/product/364442/labelsRead 7 October 2026Original exact AW2521H EU energy label, upper SDR value 19 kWh per 1000 h, class E. Public label downloaded, extracted and visually checked. Not calculated from 19.1 W fiche.

Not available

Energy per 1000 h HDR

18kWh22EU energy label (EPREL)eprel.ec.europa.eu/api/product/364442/labelsRead 7 October 2026Original exact AW2521H EU energy label lower HDR value 18 kWh per 1000 h, class E. Not calculated from 18.3 W fiche. Regional regulatory test scope, no EU warranty/support terms.

Not available

Certifications

2 of 9 differ

VESA ClearMR

Not available

Not available

VESA AdaptiveSync Display

Not available

Not available

TÜV certifications

Not available

Eye Comfort 3.0 (3-star), Low Blue Light Hardware Category 33Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Product features p8 explicitly Eye Comfort 3.0 three-star and Low Blue Light hardware Category 3. Explanatory generic star-table requirements do not prove installed sensors or other certifications.

Low blue lightiHardware means a published panel-level hardware low-blue-light solution. Software means a selectable picture filter. Hardware does not require a selectable filter mode.

Software2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own ComfortView preset reduces blue emission through software setting. No unproved hardware-solution certification is inferred.

Hardware3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Product features p8 explicitly identifies a low-blue-light panel and TÜV Rheinland hardware Category 3 at factory/default settings. ComfortView Plus is enabled by default.

ENERGY STAR

Not available

Not available

TCO Certified

Not available

Not available

EPEAT

Not available

Not available

Colour certifications

Not available

Not available

Other certifications

Not available

Not available

In the box

2 of 2 differ

In the box

Display, Stand riser, Stand base, I/O cover, Power cable (varies by country), DisplayPort to DisplayPort cable, Mini DisplayPort to DisplayPort cable, USB 3.2 Gen 1 upstream cable, Quick setup guide, Safety, Environmental and Regulatory Information, Alienware welcome card2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own exact Package Contents. Optional market items and power cable can vary. HDMI cable is not listed and electrical cable description explicitly says not included.

Monitor, Stand riser, Stand base, Power cable, HDMI cable (1.80 m), QR Card, Safety, Environmental, and Regulatory Information3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Package contents p6 and packaging information p7 name supplied monitor/stand, power cable, one 1.8 m HDMI cable, QR card and safety/regulatory document. Power plug varies by market.

Cables includediCables supplied with the product. Count is included only when the source establishes it. Bundles can vary by market.

ADell Alienware AW2521H

Type	Count
Power cable	1
DisplayPort to DisplayPort cable	1
Mini DisplayPort to DisplayPort cable	1
USB 3.2 Gen 1 upstream cable	1

Source2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own package table pictures/lists one each. Lengths are preserved only where this exact guide states them.

BDell 24 240Hz Adjustable Stand Monitor SE2426HGS

Type	Count
Power cable	Not available
HDMI 2.0 cable (1.80 m)	1

Source3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Physical characteristics p19 identifies included HDMI 2.0 cable 1.80 m. Packaging p7 explicitly one HDMI cable. Power cable quantity is not stated.

Warranty

1 of 2 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

3years1Maker product pagedell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycbRead 5 October 2026Exact US maker limited hardware warranty 3 years, with region-specific service terms.

3years1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026Exact US maker Warranty table: three-year limited warranty with Advanced Exchange Service and Premium Panel Exchange. Micro Center lists one year for its matching KWDW6 listing. The maker value takes precedence, without implying an additional dead-pixel policy.

Dead pixel policy

Premium Panel Exchange: zero bright pixels/subpixels. Up to 5 dark subpixels and up to 5 combined defects allowed.16Maker product pagedell.com/support/kbdoc/en-us/000126004/dell-display-pixel-guidelinesRead 7 October 2026Exact current Dell US premium-panel table covers all Alienware except listed newer exceptions, none AW2521H. Exact original AW2521H reviewer sheet independently bundles Premium Panel Exchange with 3-year Advanced Exchange Service. Defect thresholds apply during warranty. Partial subpixel anomalies excluded under policy. Bright pixels and dark subpixels distinguished.

Not available

Links

Not compared

Product page

www.dell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycb1Maker product pagedell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycbRead 5 October 2026

www.dell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026

Spec sheet

manuals.plus/m/242f363e5fa52a3dad16cff0500a85fa9e730e9fbce94fdbc788d08f68a4beda.pdf20Maker spec sheet (PDF)manuals.plus/m/242f363e5fa52a3dad16cff0500a85fa9e730e9fbce94fdbc788d08f68a4beda.pdfRead 7 October 2026Maker authored 2020 one-page reviewer technical specification sheet, mirrored publicly by Manuals+. Exact 360 Hz model and maker copyright verified through public PDF extraction. Direct maker-hosted current sheet not found. Some older power values differ from current guide. No older power value overrides existing guide.

Not available

Manual

dl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdf2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Exact original AW2521H/AW2521Hb guide, A01 December 2020 edition. Producer downloaded and read the authentic original PDF, which the independent reviewer also read locally. Reviewer web access initially extracted the 75-page original, but a subsequent fetch timed out and independent direct download returned HTTP 403 on October 5, 2026.

dl.dell.com/content/manual83974256-dell-24-240hz-adjustable-stand-monitor-se2426hgs-user-s-guide.pdf2Maker product pagedell.com/support/product-details/en-in/product/se2426hgs-monitor/resources/manualsRead 8 October 2026Exact model maker support page links this official English user guide. Initial web-tool PDF extraction was readable, but direct download returned 403 and later web fetches timed out. Manufacturer-authored combined guide was independently downloaded and read through the public mirror cited separately. Support-page February 2025 metadata is not used as retail evidence because the document itself is January 2026 Rev A00.3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Original Dell-authored 57-page combined SE2426 HGS/SE2726 HGS guide, January 2026 Rev A00. Cover explicitly names both models and regulatory counterparts. Only the SE2426 HGS column is used for size, power and mass. Its original maker-hosted URL is linked by maker support separately.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

36444221EU energy label (EPREL)eprel.ec.europa.eu/api/product/364442/fichesRead 7 October 2026Exact registered global model identifier AW2521H. EU regulatory registration scope. Main authorizes exact global-model EU energy facts when no regional hardware identifier split exists. No EU warranty/support inheritance.

Not available

Both are also in the API. Back to all monitors.