CAUTION: Use of controls, adjustments, or procedures other than those
specified in this documentation may result in exposure to shock, electrical
hazards, and/or mechanical hazards.
• Place the monitor on a solid surface and handle it carefully. The screen is
fragile and can be damaged if dropped or hit sharply.
• Always be sure that your monitor is electrically rated to operate with the
AC power available in your location.
• Keep the monitor in room temperature. Excessive cold or hot conditions
can have an adverse effect on the liquid crystal of the display.
• Do not subject the monitor to severe vibration or high impact conditions.
For example, do not place the monitor inside a car trunk.
• Unplug the monitor when it is going to be left unused for an extended
period of time.
• To avoid electric shock, do not attempt to remove any cover or touch the
inside of the monitor.
6|Safety instructions
About your monitor
Package contents
Your monitor ships with the components shown below. If any component is
missing, contact Dell technical support. For more information see Contact Dell.
NOTE: Some components may be optional and may not ship with your
monitor. Some features or media may not be available in certain countries.
Component imageComponent description
Display
Stand riser
Stand base
I/O cover
About your monitor|7
Power cable (varies by
country)
DisplayPort cable
(DisplayPort to
DisplayPort)
Mini-DisplayPort to
DisplayPort cable
USB 3.2 Gen1 (5 Gbps)
upstream cable (enables
the USB ports on the
monitor)
•Quick Setup Guide
• Safety, Environmental,
and Regulatory
Information
• Alienware Welcome
rd
Ca
8|About your monitor
Product features
The Alienware AW2521H monitor has an active matrix, Thin-Film Transistor
(TFT), Liquid Crystal Display (LCD) and LED backlight. The monitor features
include:
• 62.23 cm (24.5 inch) viewable area (measured diagonally). Resolution: Up
to 1920 x 1080 through DisplayPort and HDMI, with full-screen support or
lower resolutions, supporting a high refresh rate of 360 Hz.
• NVIDIA® G-SYNC® for a smooth, tear-free gaming experience.
• Supports a extremely high refresh rate of 360 Hz and a rapid response time
of 1 ms gray to gray in Extreme mode*.
•AW2521H supports HDR10.
• Color gamut of 99% sRGB with an average ΔE2000 < 1.5.
• Tilt, swivel, pivot, and height adjustment capabilities.
• Removable stand and Video Electronics Standards Association (VESA™)
100 mm mounting holes for flexible mounting solutions.
• Digital connectivity via 1 DisplayPort and 2 HDMI ports.
• Equipped with 1 SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Type B
upstream port, 1 SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Type-A
downstream charging port, and 3 SuperSpeed USB 5 Gbps (USB 3.2
Gen1) Type-A downstream ports.
• Plug and play capability if supported by your system.
• On-Screen Display (OSD) adjustments for ease of setup and screen
optimization.
• AW2521H supports the revolutionary NVIDIA® Reflex Latency Analyzer,
giving competitive gamers an accurate measurement of system latency for
the first time.
• AW2521H offers a couple of preset modes, including G-SYNC Esports,
FPS (First-Person Shooter), MOBA/RTS (Real-Time Strategy), RPG (RolePlaying Game), SPORTS (Racing) and three customizable game modes for
user's own preference. In addition, key enhanced gaming features such as
Timer, Frame Rate, and Display Alignment are provided to help improve
gamer's performance and provide best-in game advantage.
• < 0.5 W in Standby mode.
• Optimize eye comfort with a flicker-free screen.
WARNING: The possible long-term effects of blue light emission from
the monitor may cause damage to the eyes, including eye fatigue, digital
eye strain, and so on. ComfortView feature is designed to reduce the
amount of blue light emitted from the monitor to optimize eye comfort.
About your monitor|9
*The 1 ms gray-to-gray mode is
visible motion blur and increased image responsiveness. However, this may
introduce some slight and noticeable visual artifacts into the image. As every
system setup and every gamer's needs are different, Alienware recommends that
users experiment with the different modes to find the setting that is right for
them.
achievable in the Extreme mode to reduce
Identifying parts and controls
Front view
LabelDescriptionUse
1Cable-management slot
(on
the front side of the
stand)
2Power On/Off button
(w
ith LED indicator)
To organize the cables neatly.
To turn the monitor on or off.
Solid blue light indicates
turned on and functioning normally.
Blinking white light indicates that the
monitor is in Standby Mode.
that the monitor is
10 |About your monitor
Top view
LabelDescriptionUse
1Ambient light sensorDetects ambient light and adjusts
t
he brightness of the display
accordingly. For more information,
see Ambient Light Sensor.
Back view
Back view without monitor stand
Back view with monitor stand
About your monitor|11
LabelDescriptionUse
1JoystickUse it to control the OSD menu.
2Function buttonsFor more information, see Operating
the monitor.
3Barcode, serial number, and
Ser
vice Tag label
4Cable-management clips (2)To organize the cables neatly.
5Stand release buttonReleases the stand from the monitor.
6VESA mounting holes (100 mm
100 mm - behind VESA
x
Cover)
7Regulatory labelLists the regulatory approvals.
8Lighting dock connectorWhen the stand riser is attached to the
9Cable-management slot (at the
ba
ck of the stand)
10I/O coverProtects the I/O ports.
Refer to this label if you need to
contact Dell for technical support. The
Service Tag is a unique alphanumeric
identifier that enables Dell service
technicians to identify the hardware
components in your monitor and
access warranty information.
Wall mount monitor using VESAcompatible wall mount kit (100 mm x
100 mm).
m
onitor, the dock supplies power to
the light on the stand.
To organize cables by routing them
through this slot.
12 |About your monitor
Rear and bottom view
Rear and bottom view without monitor stand
LabelDescriptionUse
1Power connectorConnect the power cable (shipped with your
moni
tor).
2HDMI port (HDMI 1) Connect your computer with the HDMI
ca
ble.
3HDMI port (HDMI 2) Connect your computer with the HDMI
ca
ble.
4DisplayPort• Connect your computer
DisplayPort cable (shipped with your
monitor)
or
• Connect your computer with miniyPort-DisplayPort cable (shipped
Displa
with your monitor)
with DisplayPort-
About your monitor| 13
5SuperSpeed USB 5
Gbps (USB 3.2 Gen1)
Type-A downstream
port with NVIDIA
Reflex Latency
Analyzer.
6Headphone portConnect the headphone or speakers.
7SuperSpeed USB 5
Gbps (USB 3.2 Gen1)
Type-A downstream
port with Power
Charging
8SuperSpeed USB 5
Gbps (USB 3.2 Gen1)
Type-B upstream port
9SuperSpeed USB 5
Gbps (USB 3.2 Gen1)
Type-A downstream
port (2)
10Line-out portConnect your speakers.
Connect your USB 3.2 Gen 1 (5 Gbps)
device.*
Connect your wired or wireless mouse to this
port to enable NVIDIA Reflex Latency
Analyzer.
NOTE: To use these ports, you must connect
the USB cable (shipped with your monitor)
to the USB-upstream port on the monitor
and to your computer.
NOTE: When NVIDIA Reflex Latency
Analyzer is enabled, it is recommended to
only connect a wired or wireless mouse to
this port.
CAUTION: Increasing the audio output
beyond 50% on the volume control or
equalizer may increase the output voltage
on the headphones thereby increasing the
sound pressure levels.
Connect to charge your USB device.
Connect the USB cable (shipped with your
monitor) to this port and your computer to
enable the USB ports on your monitor.
Connect your USB 3.2 Gen1 (5 Gbps)
device.*
NOTE: To use these ports, you must connect
the USB cable (shipped with your monitor)
to the USB-upstream port on the monitor
and to your computer.
NOTE: This port does not support
headphones.
*To avoid signal interference, when a wireless USB device has been connected
to a USB downstream port, it is not recommended to connect any other USB
Contrast ratio1000 to 1 (typical)
Faceplate coatingAnti-glare with 3H hardness
BacklightLED edgelight system
Response time• 1 ms gray to gray in Extreme Mode*
Color depth16.7 million colors
622.3 mm (24.5 in.)
543.2 mm (21.38 in.)
302.6 mm (11.91 in.)
164372.3 mm2 (254.64 in2)
178° (typical)
178° (typical)
• 2 ms gray to gray in Super Fast Mode
• 3 ms gray to gray in Fast Mode
*The 1 ms gray-to-gray mode is achievable in the
Extreme mode to reduce visible motion blur and
increased image responsiveness. However this may
introduce some slight and noticeable visual artifacts
into the image. As every system setup and every
gamer's needs are different, Alienware recommends
that users experiment with the different modes to
find the setting that is right for them.
About your monitor| 15
Color gamut99% sRGB
HDR supportHDR10
Calibration accuracyΔE20
Built-in devices• SuperSpeed USB 5 Gbps (USB 3.2 Gen1) hub
Connectivity• 1 x DisplayPort version 1.4 (rear)
Border width (edge of monitor to active area)
Top
Left/Right
Bottom
Adjustability
Height adjustable stand
Tilt
Swivel
Pivot
00 < 1.5 (average)
(wi
th 1 USB 3.2 Gen1 (5 Gbps) upstream port)
• 4 x USB 5 Gbps (USB 3.2 Gen1) downstream port
including 1 port which supports power-charging)
(
• 2 x HDMI port version 2.0 (rear)
• 1 x USB 3.2 Gen1 (5 Gbps) upstream port (rear)
• 4 x USB 3.2 Gen1 (5 Gbps) downstream ports
(
bottom: 2; rear: 2)
• 1 x headphone port (bottom)
• 1 x audio line-out port (rear)
6.3 mm
6.6 mm/6.6 mm
19.4 mm
0 mm to 130 mm
-5° to 21°
-20° to 20°
-90° to 90°
Resolution specifications
Model
DisplayPort 1.4HDMI 2.0
Horizontal scan range•255 to 255 kHz
(automati
Vertical scan range•1 to 360 Hz
(automati
Maximum preset
res
olution
16 |About your monitor
•1920 x 1080 @
360 Hz
c)
c)
AW2521H
•30 to 291 kHz
(automatic)
• 24 to 240 Hz
(automatic)
•1920 x 1080
@ 240 Hz
Supported video modes
ModelAW2521H
Video display capabilities (HDMI
& Displ
ayPort playback)
480p, 576p, 720p, 1080p
Preset display modes
HDMI display modes
Display modeHorizontal
frequency
(kH
z)
VESA, 640 x 48031.476025.175-/-
VESA, 800 x 60037.886040+/+
VESA, 1024 x 76848.366065-/-
640 x 480p31.486025.18-/720 x 480p31.56027.03-/-
720 x 576p31.255027-/1280 x 720p @ 50 Hz37.55074.25+/+
1280 x 720p @ 60 Hz456074.25+/+
1920 x 1080p @ 24 Hz272474.25+/+
1920 x 1080p @ 50 Hz56.2550148.5+/+
1920 x 1080p @ 60 Hz67.560148.5+/+
1920 x 1080p @ 120 Hz135120297+/+
1920 x 1080 @ 144 Hz166.59144346.5+/1920 x 1080 @ 240 Hz291.6240583.2+/-
Vertical
frequency
(Hz)
Pixel clock
(MHz)
Sync polarity
(Horizontal/
Vertical)
DP display modes
Display modeHorizontal
frequency
Hz)
(k
VESA, 640 x 48031.476025.175-/VESA, 800 x 60037.886040-/-
Vertical
frequency
(Hz)
Pixel clock
(MHz)
Sync polarity
(Horizontal/
Vertical)
About your monitor| 17
VESA, 1024 x 76848.366065-/-
1920 x 1080 @ 60 Hz67.560148.5+/+
1920 x 1080 @ 120 Hz137.26120285.5+/1920 x 1080 @ 144 Hz166.59144346.5+/-
1920 x 1080 @ 240 Hz291.59240606.5+/1920 x 1080 @ 300 Hz375.8300781.74+/1920 x 1080 @ 360 Hz466.3360969.99+/-
NOTE: This monitor supports NVIDIA® G-SYNC®. For information about
the graphics cards that support
NVIDIA® G-SYNC® feature, see
www.geforce.com.
NOTE: In order to get the full NVIDIA® G-SYNC® functionalities and
experience, you must ensure that the monitor is directly connected to the
HDMI or DisplayPort with direct output from Nvidia Graphics card on
your PC.
Electrical specifications
ModelAW2521H
Video input signalsHDMI 2.0/DisplayPort 1.4, 600 mV for each
differ
ential line, 100 Ω input impedance per differential
pair.
AC input voltage/
frequency/cu
rrent
100 VAC to 240 VAC / 50 Hz or 60 Hz + 3 Hz /1.2 A
(typical)
Inrush current• 120 V: 40 A (max.) at 0°C (cold start)
• 220 V: 80 A (max.) at 0°C (cold start)
Power consumption• 0.3 W (Off mode)
• 0.4 W (Standby mode)
•19.1 W (On mode)
•83 W (Max.)
• 21.232 W (Pon)
•67.09 kWh (TEC)
1
1
1
2
3
3
1
As defined in EU 2019/2021 and EU 2019/2013.
2
Max brightness and contrast setting with maximum power loading on all USB
ports.
18 |About your monitor
3
Pon: Power consumption of On Mode measured with reference to Energy Star
test method.
TEC: Total energy consumption in kWh measured with reference to Energy
Star test method.
This document is informational only and reflects laboratory performance. Your
product may perform differently, depending on the software, components and
peripherals you ordered and shall have no obligation to update such
information.
Accordingly, the customer should not rely upon this information in making
decisions about electrical tolerances or otherwise. No warranty as to accuracy
or completeness is expressed or implied.
Physical characteristics
ModelAW2521H
Signal cable type
• Digital: HDMI, 19 pins (cable is not
included)
• Digital: DisplayPort, 20 pins
• Universal Serial Bus: USB, 9 pins
NOTE: Dell monitors are designed to work optimally with the video cables that
are shipped with your monitor. As Dell does not have control over the different
cable suppliers in the market, the type of material, connector and process used
to manufacture these cables, Dell does not guarantee video performance on
cables that are not shipped with your Dell monitor.
Dimensions (with stand)
Height (extended)526.1 mm (20.71 in.)
Height (compressed)421.2 mm (16.58 in.)
Width556.3 mm (21.90 in.)
Depth251.9 mm (9.92 in.)
Dimensions (without stand)
Height328.2 mm (12.92 in.)
Width556.3 mm (21.90 in.)
Depth84.4 mm (3.32 in.)
Stand dimensions
Height (extended)436.8 mm (17.20 in.)
Height (compressed)421.2 mm (16.58 in.)
About your monitor| 19
Width465.2 mm (18.32 in.)
Depth251.9 mm (9.92 in.)
Weight
Weight with packaging12.3 kg (27.03 lb)
Weight with stand assembly
a
nd cables
Weight without stand assembly
(For
wall mount or VESA mount
considerations - no cables)
Weight of stand assembly3.2 kg (7.05 lb)
Environmental characteristics
ModelAW2521H
Compliant stand
Arsenic-free glass and mercury-fre
Temperature range
Operating0°C to 40°C (32°F to 104°F)
Non-operating• Storage: -20°C to 60°C (-4°F to 140°F)
Humidity range
Operating20% to 90% (non-condensing)
Non-operating• Storage: 50% (non-condensing)
Altitude
Operating5,000 m (16,404 ft) (maximum)
Non-operating12,192 m (40,000 ft) (maximum)
1TMDS DATA 2+
2TMDS DATA 2 SHIELD
3TMDS DATA 24TMDS DATA 1+
5TMDS DATA 1 SHIELD
6TMDS DATA 17TMDS DATA 0+
8TMDS DATA 0 SHIELD
9TMDS DATA 0-
10TMDS CLOCK+
11TMDS CLOCK SHIELD
12TMDS CLOCK13CEC
14Reserved (N.C. on device)
15DDC CLOCK (SCL)
16DDC DATA (SDA)
17DDC/CEC Ground
18
19HOT PLUG DETECT
V POWER
+5
Plug and Play capability
You can connect the monitor to any Plug and Play-compatible system. The
monitor automatically provides the computer system with its Extended Display
Identification Data (EDID) using Display Data Channel (DDC) protocols so that
the system can configure itself and optimize the monitor settings. Most monitor
installations are automatic; you can select different settings if desired. For more
information about changing the monitor settings, see Operating the monitor.
22 |About your monitor
Universal Serial Bus (USB) interface
This section gives you information about the USB ports that are available on the
monitor.
NOTE: This monitor is Super-Speed USB 5 Gbps (USB 3.2 Gen1)
compatible.
Transfer speedData ratePower consumption*
Super-Speed5 Gbps4.5 W (Max, each port)
High speed480 Mbps4.5 W (Max, each port)
Full speed12 Mbps4.5 W (Max, each port)
*Up to 2 A on USB downstream port (with
battery icon) with battery
charging version-compliant devices or normal USB devices.
USB 3.2 Gen1 (5 Gbps) upstream connector
Pin number9-pin side of the
connector
1VCC
2D3D+
4GND
5SSTX6SSTX+
7GND
8SSRX9SSRX+
About your monitor| 23
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