Alienware AW2521HF

Released March 2020.5 Last checked 23 October 2026.

Screen size: 24.5in
Resolution: 1920 × 1080
Refresh rate: 240Hz
Panel: Fast IPS

83 of 172 fields known.

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At a glance

Power use (typical)
17.18W2 6
Lower than 88% of other monitors. Lower is better.
Standby power
0.3W2 6
Lower than 85% of other monitors. Lower is better.
Power use SDR (EU label)
20.4W2 6
Lower than 81% of other monitors. Lower is better.
Brightness (typical, SDR)
400nits2 6
A reviewer measured 405 nits.4
Higher than 78% of other monitors.

Ports

DisplayPort 1.2
2 HDMI 2.0
USB-B 3.0
4 USB-A 3.0
Headphone3.5 mm out

All specs

SourceCalculatedHide missing

General

Series: Alienware1
Model numbers: AW2521HF, AW2521HFb1 2 6
GTIN / EAN: Not available
Announced: Not available
Status: Not available
Predecessor: Not available
Successor: Dell Alienware AW2523HF 7
Launch price (US): Not available
Launch price (EU): Not available
Markets: Not available
Colours: Dark Side of the Moon2 6
Segment: Gaming1

Display

Screen size: 24.5in(62.2 cm)2 6
Viewable screen diagonal: 24.5in(62.2 cm)2 6
Native resolution: 1920 × 1080px2 6
Aspect ratio: 16:92 6
Pixel density: 89.9ppi
Pixel pitch: 0.2832mm2 6
Active display area: Width543.744Height302.616mm(21.4 × 11.9 in)2 6
Curved: No4
Curvature radius: Not available
Screen surface: Matte4
Anti-reflection coating: Anti-glare (Haze 25%, 3H hard coating)2 6
Touchscreen: Not available

Panel

Panel type: Fast IPS2 6
Panel type (as published): Fast IPS2 6
Backlight: Not available
Local dimming: Not available
Dimming zones: Not available
Panel maker: AU Optronics4
Panel part number: M250HAN01.74
Panel generation: Not available
Subpixel layout: Not available
Colour depth: 8bits4
Colour depth method: Native4
Displayable colours: 16.78 million2 6
sRGB coverage: 99%2 6
DCI-P3 coverage: Not available
Adobe RGB coverage: Not available
Rec. 2020 coverage: Not available
NTSC coverage: Not available
Factory calibrated: Not available
Claimed Delta E: Not available
Paper calibration report in box: Not available
Hardware calibration support: Not available
Static contrast ratio: 1,000:12 6
Brightness (typical, SDR): 400nits2 6
Brightness (maker minimum): Not available
Peak brightness (HDR): Not available
HDR peak test window: Not available
Full-screen brightness: Not available
HDR formats: Not available
HDR certification: Not available
Viewing angle (horizontal): 178°2 6
Viewing angle (vertical): 178°2 6

Refresh rate and motion

Refresh rate per resolution and port: Refresh rate per resolution and port. The top rate is in bold.
Resolution HDMI 2.0 DisplayPort 1.2
1920 × 1080Native 240Hz 240Hz
Source2 6
Show as source table
Width (px) Height (px) Input Input version Maximum accepted rate (Hz)
1920 1080 DisplayPort 1.2 240
1920 1080 HDMI 2.0 240
Max refresh rate: 240Hz
Max refresh rate at native resolution: 240Hz
Max refresh rate over DisplayPort: 240Hz
Max refresh rate over HDMI: 240Hz
Max refresh rate over USB-C: Not available
Max refresh rate at 10-bit: Not available
Native refresh rate: 240Hz2 6
Overclocked refresh rate: Not available
Dual mode: Not available
Minimum fixed refresh rate: Not available
Adaptive sync technologies: Adaptive-Sync, FreeSync Premium, G-SYNC Compatible2 4 6
VRR range per port: Not available
Low framerate compensation: Not available
Response time (maker GtG claim): 1ms2 6
Response time (maker MPRT claim): Not available
Overdrive settings: Fast, Super Fast, Extreme2 6
Motion blur reduction: No4
Blur-reduction technology: Not available
Blur reduction works with VRR: Not available
Flicker-free (claimed): Yes2 6
Black frame insertion: Not available

Refresh rate per resolution and port. The top rate is in bold.
Resolution	HDMI 2.0	DisplayPort 1.2
1920 × 1080Native	240Hz	240Hz

Width (px)	Height (px)	Input	Input version	Maximum accepted rate (Hz)
1920	1080	DisplayPort	1.2	240
1920	1080	HDMI	2.0	240

Measured

Input lag at maximum refresh rate: 2.63ms4
Input lag at 60 Hz: 6.47ms4
Average response time (measured): Not available
Overshoot (measured): Not available
Contrast ratio (measured): Not available
SDR brightness (measured): 405nits4
HDR brightness in a real scene (measured): Not available
PWM flicker frequency (measured): Not available
VRR range (measured): Not available
Colour accuracy (measured Delta E): Not available
Gray uniformity (measured): Not available
Reflections (measured): Not available

Connectivity

Video inputs: Type Version Count
DisplayPort 1.2 1
HDMI 2.0 2
Source2 6
HDMI ports: 2
DisplayPort ports: 1
Highest HDMI version: 2.0
Highest DisplayPort version: 1.2
HDMI features: Not available
USB-C video (DP Alt Mode): No2 6
USB-C power delivered: Not available
Thunderbolt: Not available
USB upstream ports: Connector USB version Count
USB-B 3.0 1
Source2 6
USB downstream hub ports: Connector USB version Count
USB-A 3.0 4
Source2 6
KVM switch: Not available
Daisy chain (MST): Not available
Ethernet: No2 6
3.5 mm headphone output: Yes2 6
3.5 mm microphone input: No2 6
Optical out: No2 6
Picture in picture: Not available
Picture by picture: Not available

Type	Version	Count
DisplayPort	1.2	1
HDMI	2.0	2

Connector	USB version	Count
USB-B	3.0	1

Connector	USB version	Count
USB-A	3.0	4

Smart features

We could not find any of these 4 fields. Show them

Smart platform: Not available
Wi-Fi: Not available
Bluetooth: Not available
Remote control: Not available

Audio and camera

Speakers: No5
Number of speakers: Not available
Speaker power per channel: Not available
Webcam: Not available
Microphone: Not available

Ergonomics and controls

Stand height adjustment: 130mm2 6
Tilt: Forward5°Backward21°2 6
Swivel: Left20°Right20°2 6
Pivot: Counterclockwise90°Clockwise90°2 6
Removable stand: Yes2 6
VESA mount: 100 x 1002 6
VESA adapter needed: Not available
Security lock slot: Yes2 6
On-screen menu controls: Joystick, Buttons, Software2 3 6
Desktop software: Alienware Command Center (AWCC) and Dell Display Manager (DDM)2 3 6
User firmware updates: Not available
Ambient light sensor: Not available
Presence sensor: Not available
RGB lighting: Yes2 6
Gaming menu features: Timer, Frame Rate, Display Alignment, Dark Stabilizer2 6

OLED care

We could not find any of these 3 fields. Show them

OLED care: Not available
Burn-in covered by warranty: Not available
Burn-in warranty length: Not available

Dimensions and weight

Front and side, drawn to scale.

Dimensions with stand: Width556.29Depth251.92mm(21.9 × 9.9 in)2 6
Dimensions without stand: Width556.29Height328.24Depth72.95mm(21.9 × 12.9 × 2.9 in)2 6
Stand footprint: Width465.3Depth251.92mm(18.3 × 9.9 in)2 6
Weight with stand: 7.46kg(16.4 lb)2 6
Weight without stand: 4.15kg(9.1 lb)2 6
Box dimensions: Not available
Box weight: 11.72kg(25.8 lb)2 6

Power

Power supply: Internal2 6
Adapter rating: Not available
Input voltage: 100-240 V AC, 50/60 Hz2 6
Power use (typical): 17.18W2 6
Power use (max): 72W2 6
Power use SDR (EU label): 20.4W2 6
Power use HDR (EU label): Not available
Standby power: 0.3W2 6
Off-mode power: 0.2W2 6
EU energy class SDR: Not available
EU energy class HDR: Not available
Energy per 1000 h SDR: Not available
Energy per 1000 h HDR: Not available

Certifications

VESA ClearMR: Not available
VESA AdaptiveSync Display: Not available
TÜV certifications: Not available
Low blue light: Software2 6
ENERGY STAR: Not available
TCO Certified: Not available
EPEAT: Not available
Colour certifications: Not available
Other certifications: Not available

In the box

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 card2 6
Cables included: Type Count
Power cable 1
DisplayPort to DisplayPort cable 1
HDMI cable 1
USB 3.0 upstream cable 1
Source2 6