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Dell UltraSharp 39.7" 2160p HDR 120 Hz Curved Thunderbolt Hub Monitor

BH #DEU4025QW • MFR #U4025QW
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Dell UltraSharp 39.7" 2160p HDR 120 Hz Curved Thunderbolt Hub Monitor
Key Features
  • 39.7" 21:9 IPS Black Panel
  • HDMI | DisplayPort | Thunderbolt 4
  • USB-C | USB-A | 2.5Gb RJ45 | 3.5mm
  • WUHD 5K 5120 x 2160 at 120 Hz with VRR
Watch every aspect of your work spring to life with the powerful and precise UltraSharp 39.7" 2160p HDR 120 Hz Curved Thunderbolt Hub Monitor from Dell. Driven by Thunderbolt 4 technology, this display is able to deliver video, data, network connectivity, daisy-chaining for a second 5K display, and charge your device with up to 140W of power, all using its integrated Thunderbolt 4 port and a single Thunderbolt 4 cable. Thanks to the WUHD 5120 x 2160 resolution, 21:9 aspect ratio, and wide 178° viewing angles, this display is the equivalent of having two 2560 x 2160 displays side by side.
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Dell U4025QW Overview

Watch every aspect of your work spring to life with the powerful and precise UltraSharp 39.7" 2160p HDR 120 Hz Curved Thunderbolt Hub Monitor from Dell. Driven by Thunderbolt 4 technology, this display is able to deliver video, data, network connectivity, daisy-chaining for a second 5K display, and charge your device with up to 140W of power, all using its integrated Thunderbolt 4 port and a single Thunderbolt 4 cable. Thanks to the WUHD 5120 x 2160 resolution, 21:9 aspect ratio, and wide 178° viewing angles, this display is the equivalent of having two 2560 x 2160 displays side by side.

Dell's UltraSharp 39.7" features an HDMI 2.1 input, a DisplayPort 1.4 input, a 40 Gb/s Thunderbolt 4 downstream port that provides 15W of charging power and can be used for daisy-chaining a second display, and a second 40 Gb/s Thunderbolt 4 port that supports DisplayPort 1.4 and power delivery up to 140W. There is also one 10 Gb/s USB-C 3.2 Gen 2 upstream port, two 10 Gb/s USB-C 3.2 Gen 2 downstream ports with 15W of charging power, five 10 Gb/s USB-A 3.2 Gen 2 ports, one of which supports device charging, and a 2.5 Gigabit Ethernet port for network connectivity. Audio from HDMI or DisplayPort sources may be output using the dual 9W speakers or 3.5mm output, which does not support headphones.

Also featured is an anti-glare panel with IPS Black technology, a 120 Hz refresh rate, support for 1.07 billion colors (8-bit + A-FRC), coverage for 100% of the sRGB, 100% of the Rec. 709, and 99% of the DCI-P3 and Display P3 color gamuts, a static contrast ratio of 2000:1, 600 nits peak brightness with VESA DisplayHDR 600, 450 nits of typical brightness, and 8 ms (normal) / 5 ms (fast) GtG response times. Using the 178° horizontal and vertical viewing angles, it is possible to watch content from virtually any position. To further help improve viewing and accessibility, the display features a vertical tilt of -5 to 21°, a swivel of 60° (±30°), and a 5.9" height adjustment. If you'd like to attach this display to a wall, there is an integrated 100 x 100mm VESA mount.

Please note that the USB-C 3.2 Gen 2 upstream port must be connected to your host system when the HDMI or DP ports are in use. It is to enable USB communication between the monitor downstream devices and the host.

40" 5K Monitor Certified for 5-Star Eye Comofort
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.
Smoother Visual Experience
A 120 Hz refresh rate delivers less flicker, more seamless scrolling, and smoother motion than 60 Hz monitors.
Ambient Light Sensor
A built-in Ambient Light Sensor intelligently optimizes brightness and color temperature based on your surroundings.
Improved ComfortView Plus
Dell's latest monitors reduce harmful blue light emissions to <35%, compared to <50% from the previous generation, for all-day eye comfort without sacrificing color accuracy.
See More Detail Than Before
5K
See every detail with complete clarity on a 5K resolution monitor.

99%
DCI-P3 and Display P3 color coverage.

IPS Black
Experience deeper blacks with a 2000:1 contrast ratio.
Internal Multi-Stream Transport (iMST)
Partition your display as if there were two 2560 x 2160 physical monitors instead of one. No external software or DisplayPort splitter needed.
Connect with Ease
Thunderbolt 4
Power your devices with a single cable connection with up to 140W of power delivery.

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

Stay Online
Connect to your network with a built-in RJ45 port with up to 2.5GbE speeds.
Operating System
This monitor is compatible with multiple operating systems, including Windows and macOS.
Dell Display Manager
Multitasking
Organize your screen with Easy Arrange and save profiles with Easy Arrange Memory.

Customization
Quickly access your favorite features and functions with the menu launcher and hot keys.

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

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

Energy Conservation
Using PowerNap mode in Dell Display Manager lowers energy use by up to 14.8%.
Dell Color Management
Customizable Colors
Easily calibrate your monitor's colors on Dell's Color 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 Color Management software is compatible with multiple operating systems, including Windows and macOS.
UPC: 884116452041

Dell U4025QW Specs

Key Specs
Display Size
40"
Panel Type
IPS-Type LCD
Native Resolution
5120 x 2160
Maximum Brightness
600 nits / cd/m2 (Peak in HDR Mode)
450 nits / cd/m2 (Sustained in SDR Mode)
HDR Support
Yes
Color Support
1.07 Billion Colors (8-Bit+FRC)
Color Gamut
100% sRGB
100% Rec. 709
99% DCI-P3
Finish
Anti-Glare / Matte
Touchscreen
No
Inputs
Rear
1x HDMI 2.1
1x DisplayPort 1.4
Outputs
Rear
1x 1/8" / 3.5 mm (Analog Audio)
USB I/O
Rear
1x USB-C (Thunderbolt 4) with USB PD 140 W (Charging/Video)
1x USB-C (Thunderbolt 4) with USB PD 140 W (Charging/DisplayPort Alt Mode)
1x USB-C 3.1/3.2 Gen 2
4x USB-A 3.1/3.2 Gen 2
Bottom
2x USB-C 3.1/3.2 Gen 2 (Charging)
1x USB-A 3.1/3.2 Gen 2 (Charging)
Built-In Speakers
Yes, 2x 9 W
Display
Display Size
40"
Panel Type
IPS-Type LCD
Aspect Ratio
21:9
Native Resolution
5120 x 2160
Maximum Brightness
600 nits / cd/m2 (Peak in HDR Mode)
450 nits / cd/m2 (Sustained in SDR Mode)
HDR Support
Yes
Contrast Ratio
2000:1
Response Time
8 ms (GtG)
5 ms (Overdrive)
Refresh Rate
120 Hz
Variable Refresh Technology
Variable Refresh Rate (VRR)
Color Support
1.07 Billion Colors (8-Bit+FRC)
Color Gamut
100% sRGB
100% Rec. 709
99% DCI-P3
Viewing Angle (H x V)
178 x 178°
Curved Display
Yes, 2500R
Look-Up Table
No
Finish
Anti-Glare / Matte
Surface
Touchscreen
No
Hardness Rating
3H
Connectivity
Inputs
Rear
1x HDMI 2.1
1x DisplayPort 1.4
Outputs
Rear
1x 1/8" / 3.5 mm (Analog Audio)
HDCP Support
Yes, Version 2.3
USB I/O
Rear
1x USB-C (Thunderbolt 4) with USB PD 140 W (Charging/Video)
1x USB-C (Thunderbolt 4) with USB PD 140 W (Charging/DisplayPort Alt Mode)
1x USB-C 3.1/3.2 Gen 2
4x USB-A 3.1/3.2 Gen 2
Bottom
2x USB-C 3.1/3.2 Gen 2 (Charging)
1x USB-A 3.1/3.2 Gen 2 (Charging)
Ethernet I/O
Rear: 1x RJ45 2.5GbE
Multi-Input Support (PIP/PBP)
Yes, Picture-in-Picture (PIP), Picture-by-Picture (PBP)
Speaker
Built-In Speakers
Yes, 2x 9 W
Electrical
Power Consumption
Maximum: 380.0 W
Operational: 45.0 W
Typical: 39.5 W
Network Standby: 1.8 W
Standby: 0.4 W
Input Power
100 to 240 VAC, 50 / 60 Hz at 4.2 A
Power Adapter Type
Internal
General
Operating Conditions
32 to 104°F / 0 to 40°C at 10 to 80% Humidity
Storage Conditions
-4 to 140°F / -20 to 60°C at 5 to 90% Humidity
Certifications
ENERGY STAR, EPEAT, RoHS, TCO Certified, TCO Certified Edge, TUV Rheinland Low Blue Light, TUV Rheinland Eye Comfort 3.0
Adjustments
Height 5.9" / 150 mm
Tilt 26° (-5 to 21°)
Rotation
Swivel 60° (-30 to 30°)
VESA Mounting-Hole Pattern
100 x 100 mm
Lock Slot
Yes, Kensington
Dimensions
37.3 x 24.5 x 10" / 947.4 x 622.3 x 254 mm (with Stand)
37.3 x 16.5 x 4.3" / 947.4 x 419.1 x 109.2 mm (without Stand)
Weight
26.94 lb / 12.22 kg (with Stand)
18.41 lb / 8.35 kg (without Stand)
Packaging Info
Package Weight
42.25 lb
Box Dimensions (LxWxH)
42 x 21 x 9.5"

Dell U4025QW Reviews

Not worth it

By M
Rated 1 out of 5
Date: 2025-05-20

Bought this to replace (4) ~10 year old, 24 Dell 1920x1200 Ultrasharp monitors run by 2 PCs. Strike 1. Could never get the KVM to work and quickly went back to my switch box. I use separate trackballs for each PC and have the KVM box switch keyboard assignment. Strike 2. The Dell software that runs the Picture by Picture doesn't allow 1/3 screen splits. You have to either go 50/50, 75/25, or 80/20. 75/25 created such a narrow portion that it was unusable. Overall this was a major step back. Strike 3: Reminder, B&H won't take this back if you open it and find these things out for yourself. My only hope is I can resell mine on Fakebook Markerplace and recoup some of the near $2,000 I wasted on this hunk of junk.

Great monitor and hub

By Andrew
Rated 5 out of 5
Date: 2025-03-24

This is a great monitor and hub. High-DPI screen and variable refresh rate make it easy on the eyes. It's a great match for both my work MacBook Pro and personal gaming PC. The thunderbolt charging passthrough works great with the Mac, and the monitor quickly recognizes input switching to DP with the PC. I haven't used the KVM switch function. Great onscreen menus that are easy to understand.

See any errors on this page?

Does this monitor support HDR 10 or HLG HDR ...

Does this monitor support HDR 10 or HLG HDR standards?
Asked by: David
The Dell UltraSharp 39.7&quot; 2160p HDR 120 Hz Curved Thunderbolt Hub Monitor is not listed to support HDR 10 or HLG HDR.
Answered by: Alex D
Date published: 2025-04-30

How can I adjust the height or do I need a ...

How can I adjust the height or do I need a separate arm?
Asked by: ARUN
The Dell UltraSharp 39.7&quot; 2160p HDR 120 Hz Curved Thunderbolt Hub Monitor offers height, tilt, and swivel adjustments.
Answered by: Alex D
Date published: 2024-12-03

can I plug in two MBP into this screen via USB-C ...

can I plug in two MBP into this screen via USB-C and expect them to charge and do switch display? and share a mouse/kb via kvm?
Asked by: Rob
I own the Dell U3425WE which has identical port layout in the monitor and this is not an option. There is only one port with upstream and charging. Also the Dell Display software currently has no option to switch from USB C sources. It can only switch between HDMI, Display Port and USB C. I was hoping to switch between a USB C windows laptop for work and my MacBook Pro and ran discovered the issue. If you are using USB C for one computer and and the USB uplink and HDMI/DP for the other, it should work fine. You won&acirc;€™t have charging though for the computer connected via HDMI.
Answered by: Robby
Date published: 2024-11-12

My Intel MacPro has a AMD Radeon Pro W5700x. Will ...

My Intel MacPro has a AMD Radeon Pro W5700x. Will this monitor work with it?
Asked by: Bob
Yes, the Dell UltraSharp 39.7&quot; 2160p HDR 120 Hz Curved Thunderbolt Hub Monitor could be used with an Intel Mac Pro.
Answered by: Calvin M
Date published: 2025-02-17

How is scaling with m1 macbook?

How is scaling with m1 macbook?
Asked by: Mike
No issues with my M1 Max. Looks crisp, no performance hit because the resolution is supported natively (not scaled as with 4K).
Answered by: Jonathan
Date published: 2025-04-23

What is the preferred way to connect this to the ...

What is the preferred way to connect this to the new Mac Mini M4 Pro for the best results?
Asked by: Marshall
The Dell UltraSharp 39.7&quot; 2160p HDR 120 Hz Curved Thunderbolt Hub Monitor can be connected to the Mac Mini M4 via HDMI or Thunderbolt, for the best results.
Answered by: Kenneth C
Date published: 2024-11-12
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