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AOC Q27G41ZE vs Dell Alienware AW2521H

Product A: AOC

Q27G41ZE

80 of 172 known
Change AOC Q27G41ZE

Compare the Dell Alienware AW2521H with

Product B: Dell

Alienware AW2521H

106 of 172 known
Change Dell Alienware AW2521H

Compare the AOC Q27G41ZE with

73 of 164 fields differ

Download CSVDownload JSON
  • 36 different values
  • 37 known for one only
  • 33 the same
  • 58 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. Power use (typical)Lower is betterA: 35WB: 21.232WDell is 13.768 W lower.
  2. Power use (max)Lower is betterA: 56WB: 83WAOC is 27 W lower.
  3. Refresh rateA: 260HzB: 360HzDell is 100 Hz higher.
  4. Brightness (typical, SDR)A: 300nitsB: 400nitsDell is 100 nits higher.
  5. Pixel densityA: 108.8ppiB: 89.9ppiAOC is 18.9 ppi higher.

Refresh rate per resolution

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

2560 × 1440Native for A
A260Hz
BNot listed
1920 × 1080Native for B
ANot listed
B360Hz

Weight

0 to 15 kg

Weight with stand
A3.84kg
B8.1kg
Weight without stand
A3.45kg
B4.5kg

All 172 fields

Every value links to where we found it.

AAOC Q27G41ZE
BDell Alienware AW2521H

General

6 of 8 differ
Series
G412Maker spec sheet (PDF)aocdlw-prd-printservice-web.azurewebsites.net/api/print/monitor/q27g41zeRead 15 October 2026Design family G41, Product line AOC Gaming.
Alienware1Maker product pagedell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycbRead 5 October 2026
Model numbers
Q27G41ZE2Maker spec sheet (PDF)aocdlw-prd-printservice-web.azurewebsites.net/api/print/monitor/q27g41zeRead 15 October 2026Model Name Q27G41ZE. AOC sells related 27 inch QHD 260Hz models under other names (Q27G40ZE, Q27G42ZE). They are separate models and are not mixed in.
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.
GTIN / EAN
6854177427835Retailer pageamazon.com/dp/B0FF5HXGJKRead 15 October 2026Amazon US page, ASIN B0FF5HXGJK, sold by the AOC Store: Model Number Q27G41ZE, UPC 685417742783, manufacturer TPV-USA. BuildCores lists the same UPC.
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.
Announced
Not available
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.
Status
Available1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026The page lists the monitor from 159.99 USD, In stock with a Buy now button, and one retail store. A search snippet of the same page earlier showed Currently not available, so availability changes.
Not available
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
Not available
$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.
Launch price (EU)
Not available
Not available
Markets
US, CN6Press articlerutab.net/b/hardware/2025/06/29/aoc-predstavila-novyy-igrovoy-monitor-2k-s-chastotoy-260-gc-vsego-za-150-dollarov.htmlRead 15 October 2026China (JD.com) from the launch articles. US from the AOC US page and Amazon US.
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.
Colours
Black1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Bezel Colour (front) Black. Cabinet colour (backside) Black, Red. Amazon lists the colour as Black.
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.
Segment
Gaming2Maker spec sheet (PDF)aocdlw-prd-printservice-web.azurewebsites.net/api/print/monitor/q27g41zeRead 15 October 2026Channel: Gaming.
Gaming1Maker product pagedell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycbRead 5 October 2026

Display

8 of 12 differ
Screen size
27in(68.6 cm)1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Screen size (inch) 27.0.
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
Viewable screen diagonal
Not available
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
Native resolution
2560 × 1440px1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Panel resolution 2560x1440.
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
Aspect ratio
16:91Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Aspect ratio 16:9.
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
Pixel density
108.8ppi
89.9ppi
Pixel pitch
0.2331mm3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026General Specification p 27: Pixel pitch 0.2331mm(H) x 0.2331mm(V).
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.
Active display area
Width596.736Height335.664mm(23.5 × 13.2 in)3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026General Specification p 27: Horizontal scan size (maximum) 596.736mm, Vertical scan size (maximum) 335.664mm. This equals 2560 x 1440 at the stated 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
Curved
No1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Flat / Curved: Flat.
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.
Curvature radius
Not available
Not available
Screen surface
Matte1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Panel treatment: Antiglare (AG), with a panel haze value of 25%. Amazon lists the finish as Glossy, which conflicts with the maker and is not used.
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.
Anti-reflection coating
Antiglare (AG)1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Panel treatment, verbatim.
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
Touchscreen
Not available
No9Retailer pagesenetic.co.uk/product/GAME-AW2521HRead 7 October 2026Exact GAME-AW2521H retailer table. Other template values conflicting with maker not adopted.

Panel

9 of 31 differ
Panel type
Fast IPS1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026The page headline says 27-inch Fast IPS gaming monitor. The spec row says Panel type IPS.
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
Panel type (as published)
Fast IPS1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Headline: Fast IPS.
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
Backlight
Not available
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
Local dimming
Not available
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.
Dimming zones
Not available
Not available
Panel maker
Not available
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.
Panel part number
Not available
Not available
Panel generation
Not available
Not available
Subpixel layout
Not available
Not available
Colour depth
8bits1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Display colours 16.7M (8bits). The maker does not say native or FRC. A Russian launch report says 10-bit via 8-bit + FRC, which conflicts with the maker's 8bits and is not used.
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.
Colour depth method
Not available
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.
Displayable colours
16.7 million1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Display colours 16.7M (8bits).
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
sRGB coverage
Not available
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.
DCI-P3 coverage
Not available
Not available
Adobe RGB coverage
Not available
Not available
Rec. 2020 coverage
Not available
Not available
NTSC coverage
85%1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Color Gamut: NTSC 85%. Coverage or volume and the CIE basis are not stated. A Russian launch report gives 94% DCI-P3 and 99.9% sRGB. That is not in any AOC document and is not used.
Not available
Factory calibrated
Not available
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.
Claimed Delta E
Not available
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.
Paper calibration report in box
Not available
Not available
Hardware calibration support
Not available
Not available
Static contrast ratio
1,000:15Retailer pageamazon.com/dp/B0FF5HXGJKRead 15 October 2026The AOC Store listing bullet says a 1000:1 contrast ratio, and the product table says Contrast Ratio 1000:1. No AOC document states it. Static or dynamic is not named, and 1000:1 is typical for IPS, so it is stored as static.
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
Brightness (typical, SDR)
300nits1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Brightness in nits 300 cd/m2. Window and mode are not stated.
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
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
HDR103Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026HDR section p 13: compatible with input signals in HDR10 format. The page says HDR Ready. No DisplayHDR certification is stated.
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
HDR certification
Not available
Not available
Viewing angle (horizontal)
178°1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Viewing angle (CR10) 178/178.
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
Viewing angle (vertical)
178°1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Viewing angle (CR10) 178/178.
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

Refresh rate and motion

12 of 22 differ
Refresh rate per resolution and port
AAOC Q27G41ZE
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.0DisplayPort 1.4
2560 × 1440Native144Hz260Hz
Source3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026General Specification p 27: Max resolution 2560x1440@144Hz (HDMI) and 2560x1440@260Hz[1] (DisplayPort). Footnote [1]: overclocking is achieved at 2560x1440@260Hz, and if a display error occurs adjust to 240Hz. Vertical scan range 48~144Hz (HDMI) and 48~260Hz (DisplayPort). Bit depth, chroma and DSC are not stated. The preset timing table lists lower resolutions, but that does not prove maxima, so no other rows are stored. A review says HDMI tops out at 120 Hz, which conflicts with the manual and is not used.
BDell Alienware AW2521H
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.0DisplayPort 1.4
1920 × 1080Native240Hz360Hz
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.
Max refresh rate
260Hz
360Hz
Max refresh rate at native resolution
260Hz
360Hz
Max refresh rate over DisplayPort
260Hz
360Hz
Max refresh rate over HDMI
144Hz
240Hz
Max refresh rate over USB-C
Not available
Not available
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
240Hz1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Max Refresh rate 240 Hz. The overclock to 260 Hz is a separate field. A review calls the panel a native 165 Hz overclocked to 240 Hz, which conflicts with the maker and is not used.
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
Overclocked refresh rate
260Hz3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Footnote [1] on p 27: overclocking at 2560x1440@260Hz, DisplayPort only per the vertical scan range. Game Setting p 17 has an OverClock On/Off option.
Not available
Dual mode
Not available
Not available
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
Adaptive-Sync, G-SYNC Compatible1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026G-SYNC Compatible feature block. The manual says G-SYNC Compatible works with DisplayPort and Adaptive-Sync works with DisplayPort and HDMI. NVIDIA's validated list was not checked. The maker does not claim FreeSync.
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.
VRR range per port
Not available
Not available
Low framerate compensation
Not available
Not available
Response time (maker GtG claim)
1ms1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026OD Response (typical) 1 ms GtG. Overdrive setting is not stated.
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.
Response time (maker MPRT claim)
0.3ms1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Response time MPRT 0.3 ms.
Not available
Overdrive settings
Normal, Fast, Faster, Fastest, Extreme3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Game Setting p 17: Overdrive Normal, Fast, Faster, Fastest, Extreme. Extreme is only available with Adaptive-Sync off and at 75 Hz or above.
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
Motion blur reduction
Yes3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Game Setting p 16: MBR (Motion Blur Reduction) gives 0-20 levels of adjustment. The manual does not say whether it uses backlight strobing.
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.
Blur-reduction technology
MBR3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Game Setting p 16-17: MBR and MBR Sync.
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
Blur reduction works with VRR
Yes3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Game Setting p 17: MBR Sync can be turned on while G-SYNC/Adaptive-Sync is on, at 75 Hz or above, with a variable-frequency signal. Plain MBR needs Adaptive-Sync off.
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.
Flicker-free (claimed)
Yes1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Flicker-Free: Flicker Free. The feature text says a DC backlight panel.
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
Black frame insertion
Not available
Not available

Measured

3 of 12 differ
Input lag at maximum refresh rate
Not available
Not available
Input lag at 60 Hz
Not available
Not available
Average response time (measured)
Not available
Not available
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
Not available
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.
SDR brightness (measured)
Not 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.
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
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.
Gray uniformity (measured)
Not available
Not available
Reflections (measured)
Not available
Not available

Connectivity

6 of 19 differ
Video inputs
AAOC Q27G41ZE
TypeVersionCountHDCP
HDMI2.011.4/2.2
DisplayPort1.411.4/2.2
Source1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026HDMI 2.0 x 1 and DisplayPort 1.4 x 1, both HDCP 1.4/2.2. The manual's rear view also shows one DisplayPort, one HDMI, earphone and power. The Amazon bullet says 2 x HDMI 2.0, which conflicts with the maker and is not used. Raw link bandwidth is not stated.
BDell Alienware AW2521H
TypeVersionCount
DisplayPort1.41
HDMI2.02
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
HDMI ports
1
2
DisplayPort ports
1
1
Highest HDMI version
2.0
2.0
Highest DisplayPort version
1.4
1.4
HDMI features
Not available
Not available
USB-C video (DP Alt Mode)
No1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026PD for USB C/TBT: No. Thunderbolt in 0x. The manual's rear view has no USB-C.
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.
USB-C power delivered
Not available
Not available
Thunderbolt
Not available
Not available
USB upstream ports
AAOC Q27G41ZE
Not available
BDell Alienware AW2521H
ConnectorUSB versionCount
USB-B3.2 Gen 11
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
USB downstream hub ports
AAOC Q27G41ZE
Not available
BDell Alienware AW2521H
ConnectorUSB versionCount
USB-A3.2 Gen 14
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.
KVM switch
No1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026KVM: No.
Not available
Daisy chain (MST)
No1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026MST / Daisy chain: False. DisplayPort output 0x.
Not available
Ethernet
No1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026RJ45: No.
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.
3.5 mm headphone output
Yes1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Audio Output: 1x Audio out. The manual calls it Earphone.
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.
3.5 mm microphone input
No1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Microphone in: False.
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.
Optical out
No3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Connecting the Monitor p 9 lists DisplayPort, HDMI, Earphone and Power. No optical output.
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.
Picture in picture
No3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026The OSD menus on pp 15-24 have no PIP or PBP function.
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.
Picture by picture
No3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026The OSD menus on pp 15-24 have no PIP or PBP function.
No13Revieweftm.com/2021/03/review-alienware-aw2521h-gaming-monitor-207972/ampRead 7 October 2026Same explicit sentence. Resolution switching does not mean simultaneous sources.

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

0 of 5 differ
Speakers
No1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Speakers: False.
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.
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

11 of 15 differ
Stand height adjustment
0mm3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Adjusting Viewing Angle p 8 shows tilt only. Two reviews say the stand has no height adjustment. Stored as no height travel.8Reviewsyabiz.com/2026/06/aoc-q27g41ze-review-240hz-qhd-gaming.htmlRead 15 October 2026Reviewer text: the included stand has tilt but lacks height, swivel and pivot.9Reviewibisik.com/aoc-q27g41ze-gaming-monitorRead 15 October 2026Reviewer text, dated 2025-11-12: the stand is stable though not height-adjustable.
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
Tilt
Forward3°Backward21°1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Tilt -3 (+/-2) to 21 (+/-2) degrees. The centre values are stored. The manual diagram shows -5 and 23, the limits with tolerance.
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
Swivel
Left0°Right0°1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Swivel: No. Stored as no swivel.
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
Pivot
Counterclockwise0°Clockwise0°1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Pivot: No. Stored as no pivot.
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
Removable stand
Yes1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Quick release function: True. The manual says remove the base before wall mounting.
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
VESA mount
100 x 1003Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Wall Mounting p 10: 100mm x 100mm pattern with M4 screws, 4 screws. The manual adds that VESA holes are not available on all models.
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
VESA adapter needed
Not available
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.
Security lock slot
Not available
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
On-screen menu controls
Buttons3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Hotkeys p 14: five buttons for Source/Exit, User Key, Dial Point, Menu/Enter and Power. No joystick.
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
Desktop software
Not available
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.
User firmware updates
Not available
Not available
Ambient light sensor
Not available
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.
Presence sensor
Not available
Not available
RGB lighting
Not available
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.
Gaming menu features
Game Mode presets, Shadow Control, Low Input Lag, Game Color, Dial Point, Sniper Scope, Frame Counter3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Game Setting p 16-17: Gaming Mode (Standard, FPS, RTS, Racing, Gamer 1-3), Shadow Control, Low Input Lag, Game Color, Dial Point, Sniper Scope, Frame Counter.
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.

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
Width613.9Height (lowest)449.4Height (highest)449.4Depth189.7mm(24.2 × 17.7 × 7.5 in)1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Product dimensions incl. base (WxHxD) 613.9 x 449.4 x 189.7 mm. The stand has tilt only, so the height has one value. Amazon lists 7.46 x 24.17 x 17.7 in, which agrees. The page also lists Product dimensions excl. base 613.9 x 449.4 x 52.7 mm. Its height repeats the with-stand height and cannot be the bare body, so the without-stand size is not stored.
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.
Dimensions without stand
Not available
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
Stand footprint
Not available
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.
Weight with stand
3.84kg(8.5 lb)1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Product with stand 3.84 kg. The AOC UAE page labels the same row Net weight excl. package. Cables are not stated.
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.
Weight without stand
3.45kg(7.6 lb)1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Product without stand 3.45 kg. Cables are not stated.
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.
Box dimensions
Not available
Not available
Box weight
Not available
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.

Power

9 of 13 differ
Power supply
Internal3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Contents in Box p 6 lists a power cable and no adapter. Power Source 100-240V~ 50/60Hz 1.5A.
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
Adapter rating
Not available
Not available
Input voltage
100-240 V AC, 50/60 Hz3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026General Specification p 27: Power Source 100-240V~ 50/60Hz 1.5A.
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
Power use (typical)
35W1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Power consumption on (typical) 35.0 W. The manual says 35W at default brightness and contrast.
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.
Power use (max)
56W1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Power consumption on (maximum) 56.0 W. The manual says <=56W at brightness 100 and contrast 100. There are no USB ports, so no USB load is 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.
Power use SDR (EU label)
Not available
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.
Power use HDR (EU label)
Not available
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.
Standby power
Not available
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
Off-mode power
0.3W1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Power consumption off 0.3 W. The page and leaflet give standby 0.5 W, but the manual says Standby Mode <=0.3W. That conflict is why standby is not stored.
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
EU energy class SDR
Not available
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.
EU energy class HDR
Not available
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.
Energy per 1000 h SDR
Not available
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.
Energy per 1000 h HDR
Not available
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.

Certifications

0 of 9 differ
VESA ClearMR
Not available
Not available
VESA AdaptiveSync Display
Not available
Not available
TÜV certifications
Not available
Not available
Low blue light
Software1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Blue Light Technology: Anti Blue Light. The manual's LowBlue Mode decreases blue light by controlling colour temperature, so it is a picture setting.
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.
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
Monitor, Quick Start Guide, Warranty Card, Stand, Base, Power Cable, HDMI Cable, DisplayPort Cable3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Contents in Box p 6, as published. Quick Start Guide, Warranty Card, Power Cable, HDMI Cable and DisplayPort Cable are starred. The manual says not all signal cables are provided in all countries and regions.
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.
Cables included
AAOC Q27G41ZE
Type
Power cable
Source3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Only the power cable is stored. HDMI and DisplayPort cables are marked as region dependent, and a US buyer review on Amazon says neither is in the box.
BDell Alienware AW2521H
TypeCount
Power cable1
DisplayPort to DisplayPort cable1
Mini DisplayPort to DisplayPort cable1
USB 3.2 Gen 1 upstream cable1
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.

Warranty

1 of 2 differ
Manufacturer warranty (source market)
3years4Maker product pageaoc.com/us/gaming/warranty-informationRead 15 October 2026Limited warranty table: AOC G-Series Monitor three (3) years from the date of purchase. The older statement on the same page says three years except one year for the LED panel. Amazon US lists 3 Year Manufacturer. US and Canada.
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.
Dead pixel policy
LED panel pixel defect only if it exceeds ISO 9241-307 Class 1: 1 full bright pixel, 1 full dark pixel, 2 single or double bright or dark sub-pixels, 3 to 5 stuck-on or stuck-off sub-pixels4Maker product pageaoc.com/us/gaming/warranty-informationRead 15 October 2026Covered LED panel pixel defect is one that exceeds ISO 9241-307 Class 1. Class 1 permits 1 full bright pixel, 1 full dark pixel, 2 single or double bright or dark sub-pixels, 3 to 5 stuck-on or stuck-off sub-pixels. Wording shortened. US and Canada. AOC's South Africa site has a different zero bright dot offer, which is not used.
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.

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