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Dell Alienware AW2521HF vs Dell 24 240Hz Adjustable Stand Monitor SE2426HGS

Product A: Dell

Alienware AW2521HF

83 of 172 known
Change Dell Alienware AW2521HF

Compare the Dell 24 240Hz Adjustable Stand Monitor SE2426HGS with

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 AW2521HF with

58 of 164 fields differ

Download CSVDownload JSON
  • 31 different values
  • 27 known for one only
  • 32 the same
  • 74 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. Response timeLower is betterA: 1msB: 0.5ms24 240Hz Adjustable Stand Monitor SE2426HGS is 0.5 ms lower.
  2. Power use (max)Lower is betterA: 72WB: 40W24 240Hz Adjustable Stand Monitor SE2426HGS is 32 W lower.
  3. Power use SDR (EU label)Lower is betterA: 20.4WB: 14W24 240Hz Adjustable Stand Monitor SE2426HGS is 6.4 W lower.
  4. Brightness (typical, SDR)A: 400nitsB: 300nitsAlienware AW2521HF is 100 nits higher.

Refresh rate per resolution

The best rate over any port. Bars run from 0 to 1200 Hz.

1920 × 1080Native for both
A240Hz
B240Hz

Size, drawn to scale

Front and side. Solid lines show the stand at its lowest. Dashed lines show it at its highest.

Weight

0 to 15 kg

Weight with stand
A7.46kg
B4.11kg
Weight without stand
A4.15kg
B2.72kg
Box weight
A11.72kg
B5.67kg

All 172 fields

Every value links to where we found it.

ADell Alienware AW2521HF
BDell 24 240Hz Adjustable Stand Monitor SE2426HGS

General

4 of 8 differ
Series
Alienware1Maker product pagedell.com/support/product-details/en-us/product/dell-aw2521hf-monitor/overviewRead 5 October 2026
Not available
Model numbers
AW2521HF, AW2521HFb1Maker product pagedell.com/support/product-details/en-us/product/dell-aw2521hf-monitor/overviewRead 5 October 2026Exact marketing and regulatory names independently checked on original manual cover. HFL colour variant and later HFA regional model are not merged.2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own original guide cover expressly lists marketing AW2521HF and regulatory AW2521HFb. The paired HFL variant is separately identified and not merged into this record.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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
Not available
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.
Announced
Not available
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
Predecessor
Not available
Not available
Successor
Dell Alienware AW2523HF7Reviewrtings.com/monitor/reviews/dell/alienware-aw2523hfRead 23 October 2026RTINGS says the Alienware AW2523HF replaces the Alienware AW2521HF.
Not available
Launch price (US)
Not available
Not available
Launch price (EU)
Not available
Not available
Markets
Not available
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.
Colours
Dark Side of the Moon2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own Product Features explicitly assigns Dark Side of the Moon to AW2521HF. Lunar Light belongs to AW2521HFL and is not a second HF colour.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Black1Maker product pagedell.com/en-us/shop/monitors/apd/dell-24-240hz-adjustable-stand-monitor-se2426hgs/se2426hgs/-Read 8 October 2026
Segment
Gaming1Maker product pagedell.com/support/product-details/en-us/product/dell-aw2521hf-monitor/overviewRead 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

7 of 12 differ
Screen size
24.5in(62.2 cm)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 diagonal
24.5in(62.2 cm)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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
91.8ppi
Pixel pitch
0.2832mm2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own horizontal pitch 0.2832 mm. Vertical 0.2802 mm is distinct and does not share this scalar. Explicit active dimensions agree at maker precision.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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 area
Width543.744Height302.616mm(21.4 × 11.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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
No4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact front/side model photographs show a flat panel.
Not available
Curvature radius
Not available
Not available
Screen surface
Matte4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact coating discussion identifies matte anti-glare display surface.
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 (Haze 25%, 3H hard coating)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own exact A03 December 2020 guide specifies anti-glare treatment of the front polarizer, Haze 25% and 3H hard coating.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact anti-glare front-polarizer treatment, Haze 25% and 3H hard coating.
Anti-glare with hard coating 3H3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026
Touchscreen
Not available
Not available

Panel

8 of 31 differ
Panel type
Fast IPS2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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)
Fast IPS2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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
Backlight
Not available
Edge-lit LED3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026
Local dimming
Not available
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 Optronics4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026
Not available
Panel part number
M250HAN01.74Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact reviewed AUO M250HAN01.7 AHVA panel. No later HFA regional hardware revision is inferred.
Not available
Panel generation
Not available
Not available
Subpixel layout
Not available
Not available
Colour depth
8bits4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026
Not available
Colour depth method
Native4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact review explicitly states true 8-bit without dithering. Own manual literal 16.78 million colour count is retained.
Not available
Displayable colours
16.78 million2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 coverage
99%2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own manual typical 99% sRGB coverage. CIE reference is unstated.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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 coverage
Not available
Not available
Adobe RGB coverage
Not available
Not available
Rec. 2020 coverage
Not available
Not available
NTSC coverage
Not available
Not available
Factory calibrated
Not available
Not available
Claimed Delta E
Not available
Not available
Paper calibration report in box
Not available
Not available
Hardware calibration support
Not available
Not available
Static contrast ratio
1,000:12Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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)
400nits2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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)
Not available
Not available
Peak brightness (HDR)
Not available
Not available
HDR peak test window
Not available
Not available
Full-screen brightness
Not available
Not available
HDR formats
Not available
Not available
HDR certification
Not available
Not available
Viewing angle (horizontal)
178°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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

5 of 22 differ
Refresh rate per resolution and port
ADell Alienware AW2521HF
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.0DisplayPort 1.2
1920 × 1080Native240Hz240Hz
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own Resolution Specifications expressly gives maximum native 1920 x 1080 at 240 Hz for DP 1.2 and HDMI 2.0, not just timing presets. Bit depth, chroma and compression remain unproved.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
BDell 24 240Hz Adjustable Stand Monitor SE2426HGS
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1 TMDSDisplayPort 1.4
1920 × 1080Native240Hz240Hz
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 rate
240Hz
240Hz
Max refresh rate at native resolution
240Hz
240Hz
Max refresh rate over DisplayPort
240Hz
240Hz
Max refresh rate over HDMI
240Hz
240Hz
Max refresh rate over USB-C
Not available
Not available
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
240Hz2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 mode
Not available
Not available
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
Adaptive-Sync, FreeSync Premium, G-SYNC Compatible2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20264Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact review verifies DP 1.2 and HDMI 2.0 Adaptive-Sync for AMD FreeSync at native 240 Hz. G-SYNC Compatible mode works only over DP. Generic protocol is separate from certification.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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 port
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)
1ms2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own fastest maker GtG claim 1 ms in Extreme, which can cause visible artifacts. Super Fast 2 ms and Fast 4 ms are separate.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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)
Not available
Not available
Overdrive settings
Fast, Super Fast, Extreme2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 reduction
No4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact responsiveness conclusion expressly says no strobed backlight mode.
Not available
Blur-reduction technology
Not available
Not available
Blur reduction works with VRR
Not available
Not available
Flicker-free (claimed)
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 rate
2.63ms4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026SMTT 2.0 with a sensitive camera and over 30 repeated readings at 240 Hz gives total display lag 2.63 ms, including pixel response. This is not processing-only delay. Active Adaptive-Sync lag could not be accurately measured. Exact firmware and lag input are not restated.
Not available
Input lag at 60 Hz
6.47ms4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Same SMTT 2.0 total-display-lag method gives 6.47 ms at 60 Hz, including pixel response. Input and firmware are not restated. Active VRR lag was unmeasured.
Not available
Average response time (measured)
Not available
Not available
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
Not available
Not available
SDR brightness (measured)
405nits4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Review central white luminance 405 nits at 100% OSD brightness and otherwise factory defaults. SpyderX Elite and X-Rite i1Display Pro Plus are used, with over two hours warmup and 240 Hz Windows setting, without an added ICC profile. Exact window/APL and firmware are unstated.
Not available
HDR brightness in a real scene (measured)
Not available
Not available
PWM flicker frequency (measured)
Not available
Not available
VRR range (measured)
Not available
Not available
Colour accuracy (measured Delta E)
Not available
Not available
Gray uniformity (measured)
Not available
Not available
Reflections (measured)
Not available
Not available

Connectivity

8 of 19 differ
Video inputs
ADell Alienware AW2521HF
TypeVersionCount
DisplayPort1.21
HDMI2.02
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
BDell 24 240Hz Adjustable Stand Monitor SE2426HGS
TypeVersionCountDSCHDCP
DisplayPort1.41Not available2.3
HDMI2.1 TMDS2No2.3
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
2
DisplayPort ports
1
1
Highest HDMI version
2.0
2.1 TMDS
Highest DisplayPort version
1.2
1.4
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 manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no USB-C socket.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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 delivered
Not available
Not available
Thunderbolt
Not available
Not available
USB upstream ports
ADell Alienware AW2521HF
ConnectorUSB versionCount
USB-B3.01
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
BDell 24 240Hz Adjustable Stand Monitor SE2426HGS
Not available
USB downstream hub ports
ADell Alienware AW2521HF
ConnectorUSB versionCount
USB-A3.04
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own four USB-A peripheral sockets, including one BC1.2 charging port at up to 2 A. Charging does not add a fifth socket.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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 manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no Ethernet socket.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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 output
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own headphone output is separate from rear speaker line-out, which expressly does not support headphones.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Yes3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026
3.5 mm microphone input
No2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has headphone/line analog outputs but no microphone input.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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 manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no optical output.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
No3Owner's manual4k-monitors.ru/upload/iblock/de2/mznmcwirxqxdinuv20kdo61y80fwo9at.pdfRead 8 October 2026Complete connector inventory has no optical audio output.
Picture in picture
Not available
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
Not available
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
No5Press article4gamer.net/games/092/G009238/20200313054Read 5 October 2026Exact launch specifications explicitly no integrated speakers. Original maker launch release is reproduced below the report.
Not available
Number of speakers
Not available
Not available
Speaker power per channel
Not available
Not available
Webcam
Not available
Not available
Microphone
Not available
Not available

Ergonomics and controls

7 of 15 differ
Stand height adjustment
130mm2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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.
Tilt
Forward5°Backward21°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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.
Swivel
Left20°Right20°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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.
Pivot
Counterclockwise90°Clockwise90°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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
Not available
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 manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 controls
Joystick, Buttons, Software2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20263Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide2_en-us.pdfRead 5 October 2026Own exact Dell Display Manager guide provides direct brightness, contrast and preset controls. This proves software monitor settings beyond desktop window placement. AWCC lighting alone is not the proof.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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) and Dell Display Manager (DDM)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own AWCC/AlienFX section controls lighting. Display Manager compatibility is separately named and its exact guide proves direct monitor image controls.3Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide2_en-us.pdfRead 5 October 2026Own exact Dell Display Manager guide names DDM and establishes direct monitor image controls. Own original user guide separately names Alienware Command Center for AlienFX lighting.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available
User firmware updates
Not available
Not available
Ambient light sensor
Not available
Not available
Presence sensor
Not available
Not available
RGB lighting
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own AlienFX lighting zones allow RGB colour codes and multiple colours, not only an ordinary power LED.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available
Gaming menu features
Timer, Frame Rate, Display Alignment, Dark Stabilizer2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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 warranty
Not available
Not available
Burn-in warranty length
Not available
Not available

Dimensions and weight

6 of 7 differ
Dimensions with stand
Width556.29Depth251.92mm(21.9 × 9.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own width and depth are direct. Height endpoints are omitted because published extended/compressed difference 104.87 mm differs from the stated 130 mm travel. Neck/body pose scope is unresolved.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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 stand
Width556.29Height328.24Depth72.95mm(21.9 × 12.9 × 2.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 footprint
Width465.3Depth251.92mm(18.3 × 9.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own supplied stand width 465.3 mm and depth 251.92 mm. No inferred rectangular area.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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 stand
7.46kg(16.4 lb)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own physical table with stand assembly and cables.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact later edition states stand assembly and cables 7.46 kg.
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 stand
4.15kg(9.1 lb)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact A03 December 2020 manual publishes 4.15 kg without stand or cables. Earlier manual and launch claims 3.55 kg, and reviewed unit 3.54 kg, conflict. A hardware revision or weight-scope explanation is unproved, so no cause is inferred.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact later edition states without stand or cables 4.15 kg. Earlier-edition 3.55 kg is not silently transferred.
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 dimensions
Not available
Not available
Box weight
11.72kg(25.8 lb)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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

4 of 13 differ
Power supply
Internal2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 rating
Not available
Not available
Input voltage
100-240 V AC, 50/60 Hz2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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)
17.18W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own electrical Pon 17.18 W uses the Energy Star reference test method. EU on-mode 20.4 W is separate.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available
Power use (max)
72W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own maximum brightness/contrast with maximum loading on all USB ports.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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)
20.4W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own electrical On mode 20.4 W as defined in EU 2019/2021 and 2019/2013, separate from Energy Star Pon 17.18 W.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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)
Not available
Not available
Standby power
0.3W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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 power
0.2W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-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
Not available
Not available
EU energy class HDR
Not available
Not available
Energy per 1000 h SDR
Not available
Not available
Energy per 1000 h HDR
Not available
Not available

Certifications

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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 light
Software2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own ComfortView preset decreases blue-light emission by software setting, not a claimed hardware solution.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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

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In the box
Monitor, Stand riser, Stand base, I/O cover, Power cable (varies by country), DisplayPort to DisplayPort cable, HDMI cable, USB 3.0 upstream cable, Quick setup guide, Safety, Environmental, and Regulatory Information, Alienware welcome card2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own Package Contents. Regional optional items and power cord can vary. No printed-item change from newer sibling manuals is transferred.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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 included
ADell Alienware AW2521HF
TypeCount
Power cable1
DisplayPort to DisplayPort cable1
HDMI cable1
USB 3.0 upstream cable1
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own Package Contents explicitly pictures/lists one of each cable. Lengths are not inferred.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
BDell 24 240Hz Adjustable Stand Monitor SE2426HGS
TypeCount
Power cableNot 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)
Not available
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
Not available
Not available

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