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Dell Alienware AW2521HF vs KTC H27T22C-3

Product A: Dell

Alienware AW2521HF

83 of 172 known
Change Dell Alienware AW2521HF

Compare the KTC H27T22C-3 with

Product B: KTC

H27T22C-3

81 of 172 known
Change KTC H27T22C-3

Compare the Dell Alienware AW2521HF with

76 of 164 fields differ

Download CSVDownload JSON
  • 38 different values
  • 38 known for one only
  • 21 the same
  • 67 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. Power use (max)Lower is betterA: 72WB: 48WKTC is 24 W lower.
  2. Standby powerLower is betterA: 0.3WB: 0.2WKTC is 0.1 W lower.
  3. Power use SDR (EU label)Lower is betterA: 20.4WB: 26WDell is 5.6 W lower.
  4. Pixel densityA: 89.9ppiB: 108.8ppiKTC is 18.9 ppi higher.
  5. Refresh rateA: 240HzB: 210HzDell is 30 Hz higher.
  6. Brightness (typical, SDR)A: 400nitsB: 450nitsKTC is 50 nits higher.

Refresh rate per resolution

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

2560 × 1440Native for B
ANot listed
B210Hz
1920 × 1080Native for A
A240Hz
BNot listed

Size, drawn to scale

Front and side, on their stands.

Weight

0 to 15 kg

Weight with stand
A7.46kg
B5.1kg

All 172 fields

Every value links to where we found it.

ADell Alienware AW2521HF
BKTC H27T22C-3

General

4 of 8 differ
Series
Alienware1Maker product pagedell.com/support/product-details/en-us/product/dell-aw2521hf-monitor/overviewRead 5 October 2026
Not available
Model numbers
AW2521HF, AW2521HFb1Maker product pagedell.com/support/product-details/en-us/product/dell-aw2521hf-monitor/overviewRead 5 October 2026Exact marketing and regulatory names independently checked on original manual cover. HFL colour variant and later HFA regional model are not merged.2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own original guide cover expressly lists marketing AW2521HF and regulatory AW2521HFb. The paired HFL variant is separately identified and not merged into this record.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
H27T22C-31Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Exact US H27T22C-3 reference. Earlier H27T22, H27T22C and H27T22C-2 hardware is excluded. Regional 220 Hz listings are not merged into the selected 200 Hz/210 Hz OC reference.
GTIN / EAN
Not available
Not available
Announced
Not available
Not available
Status
Not available
Available1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Current exact US maker product page offers the monitor for purchase and states a 1–4 business-day shipping window.
Predecessor
Not available
Not available
Successor
Dell Alienware AW2523HF7Reviewrtings.com/monitor/reviews/dell/alienware-aw2523hfRead 23 October 2026RTINGS says the Alienware AW2523HF replaces the Alienware AW2521HF.
Not available
Launch price (US)
Not available
Not available
Launch price (EU)
Not available
Not available
Markets
Not available
US1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026
Colours
Dark Side of the Moon2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own Product Features explicitly assigns Dark Side of the Moon to AW2521HF. Lunar Light belongs to AW2521HFL and is not a second HF colour.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Black11Retailer pageamazon.com/dp/B0F7R8NMFMRead 10 October 2026Amazon listing for ASIN B0F7R8NMFM, model number H27T22C-3, manufacturer KTC. It shows Color Black.
Segment
Gaming1Maker product pagedell.com/support/product-details/en-us/product/dell-aw2521hf-monitor/overviewRead 5 October 2026
Gaming1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026

Display

7 of 12 differ
Screen size
24.5in(62.2 cm)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
27in(68.6 cm)1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026
Viewable screen diagonal
24.5in(62.2 cm)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available
Native resolution
1920 × 1080px2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
2560 × 1440px1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026
Aspect ratio
16:92Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
16:91Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026
Pixel density
89.9ppi
108.8ppi
Pixel pitch
0.2832mm2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own horizontal pitch 0.2832 mm. Vertical 0.2802 mm is distinct and does not share this scalar. Explicit active dimensions agree at maker precision.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available
Active display area
Width543.744Height302.616mm(21.4 × 11.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Width595.968Height335.232mm(23.5 × 13.2 in)2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original p1 Product Technical Specifications explicitly visible area 595.968 horizontal by 335.232 vertical mm. Pixel pitch is not inferred by dividing by resolution.
Curved
No4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact front/side model photographs show a flat panel.
No9Reviewpcgamer.com/hardware/gaming-monitors/ktc-h27t22c-3-gaming-monitor-reviewRead 8 October 2026Exact reviewed H27T22C-3 hardware photographs show the flat panel. Original manual front/side drawings and exact maker stock photo corroborate the flat body.
Curvature radius
Not available
Not available
Screen surface
Matte4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact coating discussion identifies matte anti-glare display surface.
Matte10Spec databasedevice.report/ktc/h27t22c-3Read 8 October 2026Exact supplier-provided specification for H27T22C-3, ASIN B0F7R8NMFM, explicitly Screen Surface Description: Matte. Other listed mass and body dimensions are rounded and do not replace the exact maker diagrams.
Anti-reflection coating
Anti-glare (Haze 25%, 3H hard coating)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own exact A03 December 2020 guide specifies anti-glare treatment of the front polarizer, Haze 25% and 3H hard coating.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact anti-glare front-polarizer treatment, Haze 25% and 3H hard coating.
Not available
Touchscreen
Not available
Not available

Panel

9 of 31 differ
Panel type
Fast IPS2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Fast IPS1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026
Panel type (as published)
Fast IPS2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Fast IPS1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026
Backlight
Not available
Not available
Local dimming
Not available
Not available
Dimming zones
Not available
Not available
Panel maker
AU Optronics4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026
Not available
Panel part number
M250HAN01.74Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact reviewed AUO M250HAN01.7 AHVA panel. No later HFA regional hardware revision is inferred.
Not available
Panel generation
Not available
Not available
Subpixel layout
Not available
Not available
Colour depth
8bits4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026
10bits6Maker product pagenewegg.com/ktc-h27t22c-3-27-qhd-200-hz-up-to-210hz-fast-ips/p/3D4-007C-00042Read 8 October 2026Exact KTC-Official manufacturer seller listing states 1.07 billion colours. The maker parameter explicitly states 8-bit plus Hi FRC, establishing 10 supported bits with temporal FRC rather than a native 10-bit panel.
Colour depth method
Native4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact review explicitly states true 8-bit without dithering. Own manual literal 16.78 million colour count is retained.
FRC1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Exact maker parameter says 8bit+Hi FRC. The official KTC seller specification separately states 1.07 billion colours, supporting 10 supported bits with FRC. This is not native 10-bit.
Displayable colours
16.78 million2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
1.07 billion6Maker product pagenewegg.com/ktc-h27t22c-3-27-qhd-200-hz-up-to-210hz-fast-ips/p/3D4-007C-00042Read 8 October 2026Exact KTC-Official model table explicitly 1.07 billion colours.
sRGB coverage
99%2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own manual typical 99% sRGB coverage. CIE reference is unstated.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
99%1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Exact maker parameter explicitly Color Gamut Coverage: 99% sRGB CIE 1931. Its separate 131% sRGB marketing figure is a wider-gamut quantity and is not substituted into this coverage field.
DCI-P3 coverage
Not available
97%1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Explicit maker coverage claim, 97% DCI-P3 CIE 1976. It is separate from the sRGB 131% marketing quantity.
Adobe RGB coverage
Not available
96%1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Explicit maker coverage claim, 96% Adobe RGB CIE 1976. No reviewer measurement is substituted.
Rec. 2020 coverage
Not available
Not available
NTSC coverage
Not available
Not available
Factory calibrated
Not available
Yes9Reviewpcgamer.com/hardware/gaming-monitors/ktc-h27t22c-3-gaming-monitor-reviewRead 8 October 2026Exact review explicitly describes factory calibration in Native and sRGB modes. It supplies no average before-calibration Delta E test result. Its HDR400/DisplayHDR400 naming is not treated as formal VESA certification because no exact H27T22 entry was found in the official list. Its isolated 410-nit wording is not explicitly a scoped measurement and is not stored.
Claimed Delta E
Not available
Not available
Paper calibration report in box
Not available
Not available
Hardware calibration support
Not available
Not available
Static contrast ratio
1,000:12Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
1,000:11Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Explicit native static 1000:1 claim.
Brightness (typical, SDR)
400nits2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
450nits1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Exact Product Parameters explicitly Brightness (TYP): 450 nits. This is not a measured result, guaranteed minimum or separately published HDR peak.
Brightness (maker minimum)
Not available
Not available
Peak brightness (HDR)
Not available
Not available
HDR peak test window
Not available
Not available
Full-screen brightness
Not available
Not available
HDR formats
Not available
Not available
HDR certification
Not available
Not available
Viewing angle (horizontal)
178°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
178°1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Product Parameters list Viewing Angle 178 degrees as one value. It is stored for both directions.
Viewing angle (vertical)
178°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
178°1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Product Parameters list Viewing Angle 178 degrees as one value. It is stored for both directions.

Refresh rate and motion

12 of 22 differ
Refresh rate per resolution and port
ADell Alienware AW2521HF
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.0DisplayPort 1.2
1920 × 1080Native240Hz240Hz
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own Resolution Specifications expressly gives maximum native 1920 x 1080 at 240 Hz for DP 1.2 and HDMI 2.0, not just timing presets. Bit depth, chroma and compression remain unproved.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
BKTC H27T22C-3
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.0DisplayPort 1.4
2560 × 1440Native144Hz210Hz
Source1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Exact maker Audio/Video Interfaces parameter and FAQ explicitly limit native QHD HDMI to 144 Hz and DP to 200 Hz normally or 210 Hz OC. Table stores the highest DP mode with OC enabled. Bit depth, chroma and DSC requirements are unstated. No lower-resolution maximum is inferred from a timing list.
Max refresh rate
240Hz
210Hz
Max refresh rate at native resolution
240Hz
210Hz
Max refresh rate over DisplayPort
240Hz
210Hz
Max refresh rate over HDMI
240Hz
144Hz
Max refresh rate over USB-C
Not available
Not available
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
240Hz2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
200Hz1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Maker explicitly 200 Hz normal operation, separately 210 Hz OC. Original exact guide and supplier fiche also identify 200 Hz.
Overclocked refresh rate
Not available
210Hz1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Maker explicitly up to 210 Hz overclock through DisplayPort.
Dual mode
Not available
Not available
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
Adaptive-Sync, FreeSync Premium, G-SYNC Compatible2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20264Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact review verifies DP 1.2 and HDMI 2.0 Adaptive-Sync for AMD FreeSync at native 240 Hz. G-SYNC Compatible mode works only over DP. Generic protocol is separate from certification.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Adaptive-Sync, FreeSync1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Maker expressly Adaptive Sync and AMD FreeSync compatibility. NVIDIA G-Sync compatibility prose does not establish named NVIDIA certification, and no certified tier or LFC result is inferred.
VRR range per port
Not available
Not available
Low framerate compensation
Not available
Not available
Response time (maker GtG claim)
1ms2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own fastest maker GtG claim 1 ms in Extreme, which can cause visible artifacts. Super Fast 2 ms and Fast 4 ms are separate.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available
Response time (maker MPRT claim)
Not available
1ms1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Exact maker feature bullet explicitly 1 ms MPRT. Its unqualified 1 ms graphics and reviewer response-time figure are not treated as a measured or specifically proven GtG average. Dedicated strobing settings and simultaneous VRR operation are not inferred from this metric claim.
Overdrive settings
Fast, Super Fast, Extreme2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Standard, Advanced, Ultra Fast9Reviewpcgamer.com/hardware/gaming-monitors/ktc-h27t22c-3-gaming-monitor-reviewRead 8 October 2026Exact review names the three menu settings Standard, Advanced and Ultra Fast. Ultra Fast produces pronounced overshoot in its qualitative test. No numeric GtG or overshoot percentage is inferred.
Motion blur reduction
No4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact responsiveness conclusion expressly says no strobed backlight mode.
Not available
Blur-reduction technology
Not available
Not available
Blur reduction works with VRR
Not available
Not available
Flicker-free (claimed)
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Yes1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Maker FAQ and hardware low-blue-light graphic expressly describe flicker-free DC dimming. This is a claimed normal-operation feature, not a measured PWM result.
Black frame insertion
Not available
Not available

Measured

3 of 12 differ
Input lag at maximum refresh rate
2.63ms4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026SMTT 2.0 with a sensitive camera and over 30 repeated readings at 240 Hz gives total display lag 2.63 ms, including pixel response. This is not processing-only delay. Active Adaptive-Sync lag could not be accurately measured. Exact firmware and lag input are not restated.
Not available
Input lag at 60 Hz
6.47ms4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Same SMTT 2.0 total-display-lag method gives 6.47 ms at 60 Hz, including pixel response. Input and firmware are not restated. Active VRR lag was unmeasured.
Not available
Average response time (measured)
Not available
Not available
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
Not available
Not available
SDR brightness (measured)
405nits4Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Review central white luminance 405 nits at 100% OSD brightness and otherwise factory defaults. SpyderX Elite and X-Rite i1Display Pro Plus are used, with over two hours warmup and 240 Hz Windows setting, without an added ICC profile. Exact window/APL and firmware are unstated.
Not available
HDR brightness in a real scene (measured)
Not available
Not available
PWM flicker frequency (measured)
Not available
Not available
VRR range (measured)
Not available
Not available
Colour accuracy (measured Delta E)
Not available
Not available
Gray uniformity (measured)
Not available
Not available
Reflections (measured)
Not available
Not available

Connectivity

5 of 19 differ
Video inputs
ADell Alienware AW2521HF
TypeVersionCount
DisplayPort1.21
HDMI2.02
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
BKTC H27T22C-3
TypeVersionCount
HDMI2.02
DisplayPort1.42
Source1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Exact maker specification gives two HDMI 2.0 and two DP 1.4 sockets. Original exact manual connector diagram and manufacturer rear graphic independently show all four. KTC-Official Newegg specification corroborates the same counts. PC Gamer prose says one HDMI, which conflicts with those primary sources and is not used for this count. Raw enabled bandwidth, DSC and HDCP versions are unstated.
HDMI ports
2
2
DisplayPort ports
1
2
Highest HDMI version
2.0
2.0
Highest DisplayPort version
1.2
1.4
HDMI features
Not available
Not available
USB-C video (DP Alt Mode)
No2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no USB-C socket.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
No2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original p1 complete connector diagram contains DC power, firmware-only USB-A, two HDMI, two DP and headphone output, with no USB-C socket.
USB-C power delivered
Not available
Not available
Thunderbolt
Not available
Not available
USB upstream ports
ADell Alienware AW2521HF
ConnectorUSB versionCount
USB-B3.01
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
BKTC H27T22C-3
Not available
USB downstream hub ports
ADell Alienware AW2521HF
ConnectorUSB versionCount
USB-A3.04
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own four USB-A peripheral sockets, including one BC1.2 charging port at up to 2 A. Charging does not add a fifth socket.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
BKTC H27T22C-3
Not available
KVM switch
Not available
Not available
Daisy chain (MST)
Not available
Not available
Ethernet
No2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no Ethernet socket.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
No2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original p1 complete connector inventory has no Ethernet socket.
3.5 mm headphone output
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own headphone output is separate from rear speaker line-out, which expressly does not support headphones.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Yes1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Maker and exact review describe an earphone output. Original guide headset connection section expressly describes audio output.
3.5 mm microphone input
No2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has headphone/line analog outputs but no microphone input.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
No2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original guide headset connection describes output to headphones or external loudspeakers, with no microphone input.
Optical out
No2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no optical output.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
No2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original p1 complete connector inventory has no optical output.
Picture in picture
Not available
Not available
Picture by picture
Not available
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

3 of 5 differ
Speakers
No5Press article4gamer.net/games/092/G009238/20200313054Read 5 October 2026Exact launch specifications explicitly no integrated speakers. Original maker launch release is reproduced below the report.
Yes5Maker product pageus.ktcplay.com/cdn/shop/files/H27T22C-36.jpgRead 8 October 2026Exact maker rear-hardware graphic expressly Built-in Dual 2W Speakers.
Number of speakers
Not available
25Maker product pageus.ktcplay.com/cdn/shop/files/H27T22C-36.jpgRead 8 October 2026Exact graphic explicitly dual speakers and marks their two positions. KTC-Official seller also lists 2*2W.
Speaker power per channel
Not available
2W5Maker product pageus.ktcplay.com/cdn/shop/files/H27T22C-36.jpgRead 8 October 2026Exact graphic dual 2W and seller 2*2W establish 2 W per speaker, not 2 W combined.
Webcam
Not available
Not available
Microphone
Not available
Not available

Ergonomics and controls

12 of 15 differ
Stand height adjustment
130mm2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
0mm9Reviewpcgamer.com/hardware/gaming-monitors/ktc-h27t22c-3-gaming-monitor-reviewRead 8 October 2026Exact review expressly tilt only, no height adjustment. Same fixed stock stand is shown by the original guide.
Tilt
Forward5°Backward21°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Forward5°Backward15°2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original p1 stand diagram explicitly -5° to +15°.
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
Left0°Right0°9Reviewpcgamer.com/hardware/gaming-monitors/ktc-h27t22c-3-gaming-monitor-reviewRead 8 October 2026Exact review explicitly no swivel with the stock stand.
Pivot
Counterclockwise90°Clockwise90°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Counterclockwise0°Clockwise0°9Reviewpcgamer.com/hardware/gaming-monitors/ktc-h27t22c-3-gaming-monitor-reviewRead 8 October 2026Exact review explicitly no portrait rotation.
Removable stand
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Yes2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original p1 shows removing the base/stand before fitting a wall mount.
VESA mount
100 x 1002Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
100 x 1002Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026
VESA adapter needed
Not available
No2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original p1 gives direct 100x100 mm mount holes and M4x10 mm wall-mount screws, with no intermediate adapter in the complete wall-mount procedure. Wall arm is separately supplied.
Security lock slot
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available
On-screen menu controls
Joystick, Buttons, Software2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20263Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide2_en-us.pdfRead 5 October 2026Own exact Dell Display Manager guide provides direct brightness, contrast and preset controls. This proves software monitor settings beyond desktop window placement. AWCC lighting alone is not the proof.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Joystick2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original p1 expressly identifies the single joystick and shows directional menu navigation and push/hold functions.
Desktop software
Alienware Command Center (AWCC) and Dell Display Manager (DDM)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own AWCC/AlienFX section controls lighting. Display Manager compatibility is separately named and its exact guide proves direct monitor image controls.3Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide2_en-us.pdfRead 5 October 2026Own exact Dell Display Manager guide names DDM and establishes direct monitor image controls. Own original user guide separately names Alienware Command Center for AlienFX lighting.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available
User firmware updates
Not available
Yes2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original p1 Upgrade through USB says the USB 2.0 type-A socket is exclusively for monitor firmware updates from USB storage. It is not a host-facing data connection or peripheral hub.
Ambient light sensor
Not available
Not available
Presence sensor
Not available
No7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2347972_EN.pdfRead 10 October 2026Item 19 of the sheet says room presence sensor available No. The maker documents list no other presence or proximity sensor. Item 17 says Automatic Brightness Control is not available.
RGB lighting
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own AlienFX lighting zones allow RGB colour codes and multiple colours, not only an ordinary power LED.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available
Gaming menu features
Timer, Frame Rate, Display Alignment, Dark Stabilizer2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Gaming Assistance2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original joystick shortcut table expressly names Gaming Assistance. Specific crosshair, timer or frame-counter implementations are not inferred from the category title.

OLED care

None of 3 known
OLED care
Not available
Not available
Burn-in covered by warranty
Not available
Not available
Burn-in warranty length
Not available
Not available

Dimensions and weight

6 of 7 differ
Dimensions with stand
Width556.29Depth251.92mm(21.9 × 9.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own width and depth are direct. Height endpoints are omitted because published extended/compressed difference 104.87 mm differs from the stated 130 mm travel. Neck/body pose scope is unresolved.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Width616Height (lowest)465Height (highest)465Depth184.9mm(24.3 × 18.3 × 7.3 in)3Maker product pageus.ktcplay.com/cdn/shop/files/H27T22C-32.pngRead 8 October 2026Exact maker gallery dimension image visibly gives assembled width 616 mm, overall height 465 mm and total depth 184.9 mm. The supplied stand has no height adjustment, so both height positions coincide. These are not borrowed from an earlier H27T22C revision. Published tilt position is unstated.
Dimensions without stand
Width556.29Height328.24Depth72.95mm(21.9 × 12.9 × 2.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Width616Height364.3mm(24.3 × 14.3 in)4Maker product pageus.ktcplay.com/cdn/shop/files/H27T22C-311.jpgRead 8 October 2026Exact gallery dimension graphic measures the outer monitor body width 616 mm and height 364.3 mm, stopping above the stand stem. Body depth is not published here and is omitted. The base visible in the graphic is not included in the body-height dimension.
Stand footprint
Width465.3Depth251.92mm(18.3 × 9.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own supplied stand width 465.3 mm and depth 251.92 mm. No inferred rectangular area.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available
Weight with stand
7.46kg(16.4 lb)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own physical table with stand assembly and cables.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact later edition states stand assembly and cables 7.46 kg.
5.1kg(11.2 lb)11Retailer pageamazon.com/dp/B0F7R8NMFMRead 10 October 2026Product information lists Item Weight 5.1 kg. The same table lists item dimensions 7.28 x 24.25 x 18.3 in, which match the maker assembled size, so the weight is read as with stand. Amazon does not label it and does not say if cables are included. The listing title also says 220Hz, but its table says 210 Hz.
Weight without stand
4.15kg(9.1 lb)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact A03 December 2020 manual publishes 4.15 kg without stand or cables. Earlier manual and launch claims 3.55 kg, and reviewed unit 3.54 kg, conflict. A hardware revision or weight-scope explanation is unproved, so no cause is inferred.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact later edition states without stand or cables 4.15 kg. Earlier-edition 3.55 kg is not silently transferred.
Not available
Box dimensions
Not available
Not available
Box weight
11.72kg(25.8 lb)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available

Power

11 of 13 differ
Power supply
Internal2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
External adapter2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026
Adapter rating
Not available
Not available
Input voltage
100-240 V AC, 50/60 Hz2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
12 V DC, 4 A2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original exact guide explicitly monitor power input DC 12 V / 4 A. Current exact support guide repeats it. This is the monitor DC input, not the mains range of the external adapter. Current product web parameter says DC 24 V / 4.5 A, a conflicting claim excluded in favour of the original guide. Adapter wattage is not inferred from either voltage/current combination.
Power use (typical)
17.18W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own electrical Pon 17.18 W uses the Energy Star reference test method. EU on-mode 20.4 W is separate.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Not available
Power use (max)
72W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own maximum brightness/contrast with maximum loading on all USB ports.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
48W2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original p1 Power Management System upper bound, Normal Operation ≤48 W. This is an operating upper bound under the guide scope, not a universal typical value or the external adapter rating.
Power use SDR (EU label)
20.4W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own electrical On mode 20.4 W as defined in EU 2019/2021 and 2019/2013, separate from Energy Star Pon 17.18 W.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
26W7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2347972_EN.pdfRead 10 October 2026Exact regulated SDR on-mode demand 26.0 W. Not a universal maker typical draw.
Power use HDR (EU label)
Not available
43W7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2347972_EN.pdfRead 10 October 2026Exact regulated HDR on-mode demand 43.0 W.
Standby power
0.3W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
0.2W7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2347972_EN.pdfRead 10 October 2026Exact supplier fiche standby 0.2 W under European regulation. Original manual gives the broader ≤0.5 W bound, which is not substituted for this regulated figure.
Off-mode power
0.2W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
0.2W7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2347972_EN.pdfRead 10 October 2026Exact regulated off-mode demand 0.2 W.
EU energy class SDR
Not available
F7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2347972_EN.pdfRead 10 October 2026
EU energy class HDR
Not available
G7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2347972_EN.pdfRead 10 October 2026
Energy per 1000 h SDR
Not available
26kWh8EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2347972.svgRead 8 October 2026Exact official H27T22C-3 label directly prints 26 kWh/1000h for SDR. Downloaded and visually checked, not calculated from watts.
Energy per 1000 h HDR
Not available
43kWh8EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2347972.svgRead 8 October 2026Exact official label directly prints 43 kWh/1000h for HDR.

Certifications

1 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
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
Hardware1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Exact maker FAQ and its hardware low-blue-light graphic explicitly describe filtering at the light source. This is not assumed from an ordinary colour-temperature preset.
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, 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
LCD monitor, Base, DisplayPort cable, Power cord, Power adapter, User guide with warranty card, Base screws, including spare screw, Screwdriver1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Current exact US maker package table explicitly includes one screwdriver alongside the monitor, base, DP cable, adapter, power cord, guide/warranty and three M4x8 screws. The older original guide inventory does not list the screwdriver. The current exact gallery package graphic independently includes it. Optional mousepad bundle is excluded.2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026Original p1 complete package inventory. Optional mousepad bundle is excluded from this base monitor reference. Current maker page separately lists a screwdriver and three M4x8 screws.
Cables included
ADell Alienware AW2521HF
TypeCount
Power cable1
DisplayPort to DisplayPort cable1
HDMI cable1
USB 3.0 upstream cable1
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own Package Contents explicitly pictures/lists one of each cable. Lengths are not inferred.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
BKTC H27T22C-3
TypeCount
DisplayPort1
AC power1
Source2Owner's manualus.ktcplay.com/cdn/shop/files/H27T22C-3-USE_MANUAL_39abbc85-ae47-4883-a0d4-27270d53757e.pdfRead 8 October 2026

Warranty

1 of 2 differ
Manufacturer warranty (source market)
Not available
3years1Maker product pageus.ktcplay.com/products/27-2k-210hz-gaming-monitorRead 10 October 2026Exact US product page offers three-year protection. Original guide states three-year warranty from purchase or the agreed contract.
Dead pixel policy
Not available
Not available

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