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AOC Q27G41ZE vs Dell Alienware AW2521HF

Product A: AOC

Q27G41ZE

80 of 172 known
Change AOC Q27G41ZE

Compare the Dell Alienware AW2521HF with

Product B: Dell

Alienware AW2521HF

83 of 172 known
Change Dell Alienware AW2521HF

Compare the AOC Q27G41ZE with

67 of 164 fields differ

Download CSVDownload JSON
  • 35 different values
  • 32 known for one only
  • 26 the same
  • 71 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. Power use (typical)Lower is betterA: 35WB: 17.18WDell is 17.82 W lower.
  2. Brightness (typical, SDR)A: 300nitsB: 400nitsDell is 100 nits higher.
  3. Power use (max)Lower is betterA: 56WB: 72WAOC is 16 W lower.
  4. 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
B240Hz

Weight

0 to 15 kg

Weight with stand
A3.84kg
B7.46kg
Weight without stand
A3.45kg
B4.15kg

All 172 fields

Every value links to where we found it.

AAOC Q27G41ZE
BDell Alienware AW2521HF

General

4 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/support/product-details/en-us/product/dell-aw2521hf-monitor/overviewRead 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.
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
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.
Not available
Announced
Not available
Not available
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
Dell Alienware AW2523HF7Reviewrtings.com/monitor/reviews/dell/alienware-aw2523hfRead 23 October 2026RTINGS says the Alienware AW2523HF replaces the Alienware AW2521HF.
Launch price (US)
Not available
Not available
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.
Not available
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 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
Segment
Gaming2Maker spec sheet (PDF)aocdlw-prd-printservice-web.azurewebsites.net/api/print/monitor/q27g41zeRead 15 October 2026Channel: Gaming.
Gaming1Maker product pagedell.com/support/product-details/en-us/product/dell-aw2521hf-monitor/overviewRead 5 October 2026

Display

7 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 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
Viewable screen diagonal
Not available
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
Native resolution
2560 × 1440px1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Panel resolution 2560x1440.
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
Aspect ratio
16:91Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Aspect ratio 16:9.
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
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).
0.2832mm2Owner'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
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.
Width543.744Height302.616mm(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
Curved
No1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Flat / Curved: Flat.
No4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact front/side model photographs show a flat panel.
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.
Matte4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact coating discussion identifies matte anti-glare display surface.
Anti-reflection coating
Antiglare (AG)1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Panel treatment, verbatim.
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.
Touchscreen
Not available
Not available

Panel

8 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 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
Panel type (as published)
Fast IPS1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Headline: Fast IPS.
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
Backlight
Not available
Not available
Local dimming
Not available
Not available
Dimming zones
Not available
Not available
Panel maker
Not available
AU Optronics4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026
Panel part number
Not available
M250HAN01.74Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact reviewed AUO M250HAN01.7 AHVA panel. No later HFA regional hardware revision is inferred.
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.
8bits4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026
Colour depth method
Not available
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.
Displayable colours
16.7 million1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Display colours 16.7M (8bits).
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
sRGB coverage
Not available
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
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
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
1,000:15Retailer 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 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
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 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
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.
Not available
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 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
Viewing angle (vertical)
178°1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Viewing angle (CR10) 178/178.
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

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 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
Max refresh rate
260Hz
240Hz
Max refresh rate at native resolution
260Hz
240Hz
Max refresh rate over DisplayPort
260Hz
240Hz
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.
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
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.
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
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 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
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 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
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.
No4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact responsiveness conclusion expressly says no strobed backlight mode.
Blur-reduction technology
MBR3Owner's manualaoc.com/api/asset/pi46502Read 15 October 2026Game Setting p 16-17: MBR and MBR Sync.
Not available
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.
Not available
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 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
Black frame insertion
Not available
Not available

Measured

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

9 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 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
HDMI ports
1
2
DisplayPort ports
1
1
Highest HDMI version
2.0
2.0
Highest DisplayPort version
1.4
1.2
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 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
USB-C power delivered
Not available
Not available
Thunderbolt
Not available
Not available
USB upstream ports
AAOC Q27G41ZE
Not available
BDell 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
USB downstream hub ports
AAOC Q27G41ZE
Not available
BDell 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
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 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
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 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
3.5 mm microphone input
No1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Microphone in: False.
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
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 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
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.
Not available
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.
Not available

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.
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.
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

9 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 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
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 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
Swivel
Left0°Right0°1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Swivel: No. Stored as no 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
Pivot
Counterclockwise0°Clockwise0°1Maker product pageaoc.com/us/gaming/monitors/q27g41zeRead 15 October 2026Pivot: No. Stored as no 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
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 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
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 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
VESA adapter needed
Not available
Not available
Security lock slot
Not available
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
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, 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
Desktop software
Not available
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
User firmware updates
Not available
Not available
Ambient light sensor
Not available
Not available
Presence sensor
Not available
Not available
RGB lighting
Not available
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
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 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

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.
Width556.29Depth251.92mm(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
Dimensions without stand
Not available
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
Stand footprint
Not available
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
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.
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.
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.
4.15kg(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.
Box dimensions
Not available
Not available
Box weight
Not available
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

Power

5 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 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
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 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
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.
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
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.
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
Power use SDR (EU label)
Not available
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
Power use HDR (EU label)
Not available
Not available
Standby power
Not available
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
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.
0.2W2Owner'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
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

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 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
ENERGY STAR
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TCO Certified
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EPEAT
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Colour certifications
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Other certifications
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In the box

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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.
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
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 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

Warranty

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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.
Not available
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.
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Both are also in the API. Back to all monitors.