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Product specifications

DELL UltraSharp U4025QW computer monitor 101.6 cm (40") 5120 x 2160 pixels 5K Ultra HD LCD Silver

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101.6cm (40") 5K Ultra HD 5120 x 2160 LED IPS, 21:9, 450cd/m², 1.07B, 8ms, 178°/178°, 2000:1, SuperSpeed USB A to USB C - 10 Gbps (1m) Upstream cable

Part DELL-U4025QW · UPC 884116452041

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  • 101.6cm (40") 5K Ultra HD 5120 x 2160 LED IPS
  • 8ms, 21:9, 450cd/m², 2000:1
  • USB, HDMI, DisplayPort

About this product

Elevate your performance with a 40-inch curved Thunderbolt™ hub monitor featuring a stunning 5K display and a 120Hz refresh rate.

Manufacturer warranty information

3 Years Advance Exchange Service

Manufacturer notes

Actual configuration might differ from illustration Product Carbon Footprint (PCF) 1. Dell calculates the Product Carbon Footprint using one of two methodologies, depending on the product: the Dell PCF calculator (GaBi version XXX, YYYY) or the Product Attribute to Impact Algorithm (PAIA, X.X.X, YYYY). The methodology used is indicated in the "Version of PCF tool used" column. 2. PAIA (Product Attribute Impact Algorithm) is a streamlined LCA tool developed by MIT ‘s Materials System Laboratory. PAIA estimates the product’s carbon footprint using limited system attributes of the product such as component dimension, screen size, system weight, and annual energy consumption. 3. Please note the emission estimate in this report is calculated using the mean value along with the standard deviation for that product model. 4. Use of default inputs (i.e. not primary data) and assumptions on location of use and other fields can introduce a standard deviation which must be taken into account while completing the calculations. For more information refer to the PCF pages on Dell.com. 5. For the PAIA PCF methodology, the transportation from assembly to customer includes the emissions generated during air, ocean and land transportation of finished or semi-finished Dell products between Dell facilities and between Dell facilities to customers. 6. For the Dell PCF calculator and methodology, the transportation phase the default delivery assumptions are 90% of transport happening by sea and 10% happening by air. Trucking distances don’t contribute as much to the PCF impact compared to more influential by sea or by air distances modes. 7. Please note, PAIA uses the ecoinvent Database (https://ecoinvent.org/the-ecoinvent-database/) whenever primary data is not made available for calculations. 8. For client and commercial end user computing products, minimum configurations were assumed for calculations. For Server and Storage products, typical configurations or ENERGY STAR (https://www.energystar.gov/products) configurations were used for calculations. 9. Use Phase emissions were calculated based on the location of use as "Europe" i.e. the Use Phase emissions are not specific to a single country / location.The Dell PCF Calculator also estimates Use Phase emissions for the U.S. and China, which are available in the PCF PDF documents on Dell.com. 10. The report provides the total emissions separated by the 4 lifecycle phases: manufacturing, transport, use, and end of life to understand the impact of each phase. 11. The Dell PCF Calculator lifetime usage assumption at the product family level is as follows: Desktop, Notebook - 5 years, Display - 6 years and Servers/Storage - 4 years. 12. For Displays, total product weight refers to the weight of the typical product configuration, including any cables and the power cord. * Blanks indicate we do not have the corresponding metric calculated or data is currently unavailable for the specific product at this time.

Display

Display diagonal
101.6 cm (40")
Display resolution
5120 x 2160 pixels
HD type
5K Ultra HD
Native aspect ratio
21:9
Display technology
LCD
Panel type
IPS
LED backlight
Yes
Backlight type
Edge 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 colours
1.07 billion colours
Response time (fast)
5 ms
Pixel pitch
0.1815 x 0.1815 mm
Pixel density
140 ppi
Horizontal scan range
25 - 280 kHz
Vertical scan range
48 - 120 Hz
Viewable size, horizontal
92.9 cm
Viewable size, vertical
39.2 cm
Viewable size diagonal
100.9 cm
High Dynamic Range (HDR) supported
Yes
Surface hardness
3H
Colour gamut standard
DCI-P3
Colour 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 colour
Silver
Front bezel colour
Black
Feet colour
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 (USB PD)
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
Height adjustment
Yes
Adjustable height (max)
15 cm
Swivelling
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

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 - 5000 m
Non-operating altitude
0 - 12192 m

Weight & dimensions

Width (with stand)
946.6 mm
Depth (with stand)
252.8 mm
Height (with stand)
472.3 mm
Weight (with stand)
11.7 kg
Width (without stand)
946.6 mm
Depth (without stand)
108 mm
Height (without stand)
419.1 mm
Weight (without stand)
8.35 kg
Bezel width (side)
1.13 cm
Bezel width (top)
1.13 cm
Bezel width (bottom)
1.58 cm

Packaging data

Package weight
19 kg
USB cable length
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
1.8 m
HDMI cable length
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
PAIA version
GaBi version 1, 2024

Other features

Picture-by-Picture (PbP)
Yes
Heavy metals free
Hg (mercury)
Packaging content
C13 Power Cord T10 (Euro)
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

Specifications and images: Database Right data-sheet 2026 Icecat. All rights reserved. Supplied as is, without warranty. Specs Icecat · Open Content License

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