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DELL UltraSharp U4025QW computer monitor 40" 5120 x 2160 pixels 5K Ultra HD LCD Silver Computer Monitors (DELL-U4025QW)

DELL UltraSharp U4025QW computer monitor 40" 5120 x 2160 pixels 5K Ultra HD LCD Silver

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TFT/LCD displays are perfectly flat, a lot thinner and lighter than conventional CRT displays and do not flicker, all this because of the new technology they use for producing images. Do you want to free up space on your desk, or do you want to be able to move your monitor without breaking your back? Then this is the perfect display for you!
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Info modified on: 19 May 2025 14:01:59
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DELL DELL-U4025QW (Icecat)
Bullet Points DELL UltraSharp U4025QW computer monitor 40" 5120 x 2160 pixels 5K Ultra HD LCD Silver
Each of several items in a list, preceded by a bullet symbol for emphasis.
:
  • - 40" LCD IPS
  • - 5K Ultra HD 5120 x 2160 pixels 21:9
  • - 120 Hz 8 ms 450 cd/m² 2000:1
  • - Flicker-free technology
  • - F 40 kWh 39.5 W
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Smoother visual experience
Smoother visual experience

A 120Hz refresh rate delivers less flicker, more seamless scrolling and smoother motion than 60Hz monitors.

Ambient Light Sensor
Ambient Light Sensor

A built-in Ambient Light Sensor intelligently optimises brightness and colour temperature based on your surroundings.

World's first 40" 5K monitor certified for 5-Star Eye Comfort
World's first 40" 5K monitor certified for 5-Star Eye Comfort

Every aspect of your work springs to life on this curved 5K monitor featuring a 120Hz refresh rate. You'll never miss a single detail.

Improved ComfortView Plus
Improved ComfortView Plus

Our latest monitors reduce harmful blue light emissions to <35%, compared to <50% from the previous generation, for all-day eye comfort without sacrificing colour accuracy.

See more detail than ever before​
See more detail than ever before​

5K
See every detail with complete clarity on a 5K resolution monitor.

99%
DCI-P3 and Display P3 colour coverage.

IPS Black
Experience deeper blacks with a 2000:1 contrast ratio.

Internal Multi-Stream Transport (iMST)
Internal Multi-Stream Transport (iMST)

Partition your display as if there were two 2560x2160 physical monitors instead of one. No external software or DisplayPort splitter needed.

Thunderbolt™ 4
Thunderbolt™ 4

Power your devices with a single cable connection with up to 140W power delivery.

Stay online
Stay online

Connect to the Ethernet with a built-in RJ45 port with up to 2.5GbE.

Dell Display Manager
Dell Display Manager

Multitasking
Organise your screen with Easy Arrange and save profiles with Easy Arrange Memory.

Network KVM
Control and work across multiple network connected PCs and monitors with a single keyboard and mouse, and easily transfer files between them.

Customisation
Quickly access your favourite features and functions with the menu launcher and hot keys.

Manageability
Manage your fleet of monitors with remote management features that are automatic, comprehensive and compatible with several tools.

Dell Colour Management
Dell Colour Management

Customisable colours
Easily calibrate your monitor’s colours on the new Dell Colour Management software, with Calman Verified certification.

Tailored to you
Create, store, and manage ICC profiles on your computer dynamically through the software dashboard.

Wide compatibility
Dell Colour Management software is compatible with multiple operating systems including Windows and macOS®.

Environmentally-forward thinking
Environmentally-forward thinking

Sustainable materials
This monitor is made with 50% recycled steel, 85% post-consumer recycled plastics including closed-loop plastics, 100% recycled aluminium and at least 20% recycled glass.

Energy conservation
Using PowerNap mode in Dell Display Manager lowers energy use by up to 14.8%.

Packaging innovation
Ships in a box made with 100% renewable content that is also recyclable.

Elevated standards
Meets highest environmental standards and registered EPEAT Gold with Climate+ designation - this monitor has met industry best practices for decarbonisation.

Extensive connectivity
Extensive connectivity

Connect all your devices with over a dozen ports, including pop-out quick access ports.

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Display
Display diagonal *
40"
Display resolution *
5120 x 2160 pixels
HD type *
5K Ultra HD
Native aspect ratio *
21:9
Display technology *
LCD
Panel type *
IPS
Backlight type
LED
Touchscreen *
No
Display brightness (peak)
600 cd/m²
Display brightness (typical)
450 cd/m²
Response time *
8 ms
Anti-glare screen
Yes
Screen shape *
Curved
Screen curvature rating
2500R
Supported graphics resolutions
640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 1024 x 768 (XGA), 1152 x 864 (XGA+), 1280 x 1024 (SXGA), 1280 x 800, 1600 x 1200, 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 1920 x 1200 (WUXGA), 2048 x 1152, 2048 x 1280, 2560 x 1080, 3840 x 2160, 4096 x 2160, 5120 x 2160
Supported video modes
480p, 720p, 1080p
Contrast ratio (typical) *
2000:1
Maximum refresh rate *
120 Hz
Viewing angle, horizontal
178°
Viewing angle, vertical
178°
Display number of colors *
1.07 billion colors
Response time (fast)
5 ms
Pixel pitch
0.00715 x 0.00715" (0.181 x 0.181 mm)
Pixel density
140 ppi
Horizontal scan range
25 - 280 kHz
Vertical scan range
48 - 120 Hz
Viewable size, horizontal
36.6" (92.9 cm)
Viewable size, vertical
15.4" (39.2 cm)
Viewable size diagonal
39.7" (100.9 cm)
High Dynamic Range (HDR) supported
Yes
Surface hardness
3H
Colour gamut standard
DCI-P3
Color gamut
99%
sRGB coverage (typical)
100%
Dual ambient light sensor
Yes
Dell ComfortView technology
Yes
Heat dissipation
134.8 BTU/h
Performance
AMD FreeSync *
No
Flicker-free technology
Yes
Low Blue Light technology
Yes
Windows operating systems supported
Windows 10, Yes
Mac operating systems supported
MacOS
Multimedia
Number of speakers
2
RMS rated power
18 W
Built-in speaker(s) *
Yes
Built-in camera *
No
Design
Product color *
Silver
Front bezel color
Black
Feet color
Silver
Ports & interfaces
Built-in USB hub *
Yes
Number of USB Type-C upstream ports quantity
2
USB Type-A downstream ports quantity
5
USB Type-C downstream ports quantity
3
USB Type-C DisplayPort Alternate Mode
Yes
USB Power Delivery
Yes
USB Power Delivery up to
140 W
HDMI *
Yes
HDMI ports quantity
1
HDMI version
2.1
DisplayPorts quantity
1
DisplayPort version
1.4
Thunderbolt 4 ports quantity
2
Audio output
Yes
Headphone out *
No
Built-in KVM switch
Yes
HDCP
Yes
HDCP version
1.4/2.3
DC-in jack
Yes
Ergonomics
VESA mounting *
Yes
Panel mounting interface
100 x 100 mm
Cable management
Yes
Cable lock slot *
Yes
Cable lock slot type
Kensington
Ergonomics
Height adjustment *
Yes
Adjustable height (max)
5.91" (15 cm)
Swiveling
Yes
Swivel angle range
-30 - 30°
Tilt adjustment
Yes
Tilt angle range
-5 - 21°
Picture-in-Picture
Yes
On Screen Display (OSD)
Yes
Plug and Play
Yes
LED indicators
Yes
Power
Energy efficiency class (SDR) *
F
Energy efficiency class (HDR) *
G
Energy consumption (SDR) per 1000 hours *
40 kWh
Energy consumption (HDR) per 1000 hours *
62 kWh
Power consumption (typical) *
39.5 W
Power consumption (standby) *
0.4 W
Power consumption (max)
380 W
Power consumption (off)
0.3 W
AC input voltage
100 - 240 V
AC input frequency
50/60 Hz
Input current
4.2 A
Power supply type
Internal
Energy efficiency scale
A to G
European Product Registry for Energy Labelling (EPREL) code
1821612
Operational conditions
Operating temperature (T-T)
0 - 40 °C
Storage temperature (T-T)
-20 - 60 °C
Operating relative humidity (H-H)
10 - 80%
Storage relative humidity (H-H)
5 - 90%
Operating altitude
0 - 196850.4" (0 - 5000 m)
Non-operating altitude
0 - 480000" (0 - 12192 m)
Weight & dimensions
Width (with stand)
37.3" (946.6 mm)
Depth (with stand)
9.95" (252.8 mm)
Height (with stand)
18.6" (472.3 mm)
Weight (with stand)
25.8 lbs (11.7 kg)
Width (without stand)
37.3" (946.6 mm)
Depth (without stand)
4.25" (108 mm)
Height (without stand)
16.5" (419.1 mm)
Weight (without stand)
18.4 lbs (8.35 kg)
Bezel width (side)
0.445" (1.13 cm)
Bezel width (top)
0.445" (1.13 cm)
Bezel width (bottom)
0.622" (1.58 cm)
Packaging data
Package weight
41.9 lbs (19 kg)
USB cable length
39.4" (1 m)
Packaging content
Stand included
Yes
Cables included
AC, DisplayPort, HDMI, Thunderbolt, USB Type-A to USB Type-C
Quick start guide
Yes
DisplayPort cable length
70.9" (1.8 m)
HDMI cable length
70.9" (1.8 m)
Sustainability
Sustainability certificates
ENERGY STAR, TCO
Doesn't contain
PVC/BFR
Carbon footprint
Total carbon footprint (kg of CO2e)
480
Carbon emissions, manufacturing (kg of CO2e)
196.8
Carbon emissions, logistics (kg of CO2e)
35.52
Carbon emissions, energy usage (kg of CO2e)
192.48
Carbon emissions, end-of-life (kg of CO2e)
55.2
Total carbon emissions, w/o use phase (kg of CO2e)
287.52
PAIA version
GaBi version 1, 2024
Other features
Picture-by-Picture (PbP)
Yes
Heavy metals free
Hg (mercury)
Automatic brightness control
Yes
Compliance certificates
RoHS
Ethernet LAN data rates
2500 Mbit/s
Ethernet LAN (RJ-45) ports
1
Brand-specific features
Dell Display Manager (DDM) compatibility
Yes
Brand Image Article code product
Thin Clients
dell optiplex 3000
dell optiplex 3000
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dell optiplex 3000
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dell optiplex 3000
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dell pro max fct2250 t2
dell pro max fct2250 t2
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Country Distributor
Nederland 3 distributor(s)
Österreich 2 distributor(s)
Switzerland 3 distributor(s)
United Kingdom 5 distributor(s)
Danmark 4 distributor(s)
Deutschland 3 distributor(s)
Belgium 2 distributor(s)
Polska 1 distributor(s)
France 1 distributor(s)
Sverige 2 distributor(s)
Magyarország 1 distributor(s)
España 1 distributor(s)
Hrvatska 1 distributor(s)
Portugal 1 distributor(s)