Item no.: mde404 /  Manufacturer no.: DELL-U4025QW

Dell 40" Display U4025QW, 5120 x 2160, 140 W USB-C, Silver

  • max 600 nt
  • Contrast ratio: 2000 :1
  • More features: Curved
  • Connections: USB 3.2 Typ-A, USB 3.2 Typ-C, Thunderbolt 4 (USB-C), HDMI, DisplayPort, 2-pin CH mains, 230 volt


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General information

Part numbermde404
Model nameU4025QW
Product type / categoryDisplay
Individual featuresCurved
Energy efficiencyF
Energy consumption per 1000 hours40 kWh/1000h
Product link
Manufacturer part no.DELL-U4025QW
EAN code5397184821510

Material and color

Main material / casePlastic
Main color / manufacturer color nameSilver
Second color / color insideBlack


Display size (inch)40"
Horizontal resolution (pixel)5.120
Vertical resolution (pixel)2.160
Resolution (density)140 ppi
Resolution and dpi5120 x 2160; 140 ppi
Brightness (max)600 nt
Contrast ratio2.000 :1
Black to white response time8 ms
Response time gray to gray5 ms
Viewing angle (horizontal)178 Grad
Viewing angle (vertical)178 Grad
Viewing angle (H / V)178 degrees (h) / 178 degrees (v) degrees

Foto, Video, Audio

Audio featuresStereo speaker

Connections overview

Connections (device)USB 3.2 Typ-A, USB 3.2 Typ-C, Thunderbolt 4 (USB-C), HDMI, DisplayPort, 2-pin CH mains, 230 volt


USB-C power delivery140 W
HDMI specificationsHDMI 2.2
Ethernet (RJ45)1
3.5mm mini jack1

Power supply

Power (max)140 W

Packaging content

Cables includedDisplayPort cable, HDMI cable, USB-A to USB-B cable, Thunderbolt 4 cable, CH power cord

Dimensions and weight

Device width94,66 cm
Device hight47,23 cm
Max. depth / thickness (monitors: with stand)25,28 cm
Net weight12,22 kg
Device dimensions94,66 cm x 47,23 cm
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Curved Dell UltraSharp 40" Thunderbolt Monitor U4025QW

Immerse yourself in your work with crystal-clear images and even more eye comfort. Immersive view, outstanding screen performance
This stunning curved 40" 5K monitor offers a 120 Hz refresh rate for a generous field of view with smooth and responsive images.
Enjoy true-to-life colours with 99% DCI-P3/Display P3 colour coverage and benefit from a wide viewing angle thanks to IPS Black display technology, which offers deeper blacks with a contrast ratio of 2,000:1. Powerhouse for more productivity This Thunderbolt 4 hub monitor, which provides up to 140 W Power Delivery (PD) via a single cable, enables fast connectivity and image transfers.
Enjoy effortless multitasking thanks to internal multi-stream transport (iMST). Split your screen as if you were working on two physical monitors with a resolution of 2,560 x 2,160 instead of one. No external software or DisplayPort splitter is required.
With Dell Display Manager's new Network KVM feature, you can work on two computers for increased productivity.

Smooth visual experience

The 120 Hz refresh rate provides less flicker, smoother scrolling and smoother motion than 60 Hz monitors.

Ambient light sensor

The integrated ambient light sensor intelligently optimises brightness and colour temperature based on your surroundings.

Improved ComfortView Plus function

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

Internal Multi-Stream Transport (iMST)

Set up your display as if you had two physical 2,560 x 2,160 monitors in front of you. No external software or DisplayPort splitter is required.

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Warranty and services

Duration and type of warranty3 years bring-in warranty