Dell UltraSharp 40 Curved Thunderbolt™ Hub Monitor - U4025QW

Elevate your performance with a 40-inch curved Thunderbolt™ hub monitor featuring a stunning 5K display and a 120Hz refresh rate.
EU Energy Label
Diagonal Size
39.7"
Resolution / Refresh Rate
5120 x 2160 at 120 Hz
Panel Technology
IPS Black Technology
Adjustability
Height
Tilt
Swivel
Color Gamut
DCI-P3 99%
Display P3 99%
sRGB 100%
BT.709 100%
DCI-P3
Display P3
sRGB & BT.709: Delta E < 2 (Average)
Ports
1 x HDMI (supports up to 5K2K 5120 x 2160 120Hz FRL, HDR Static Metadata, VRR as per specified in HDMI 2.1.)
1 x DP 1.4 (HDCP 2.3) (Support up to 5120 x 2160 120Hz, HDR, DSC)
1 x ThunderboltTM 4 downstream port (15 W) for daisy chaining (Video + Data)
1 x ThunderboltTM 4 (Up to 140W EPR) (Alternate mode with DisplayPort 1.4, SuperSpeed USB 3.2 Gen2 (10 Gbps) upstream port, USB Power Delivery up to 140W EPR)
1 x USB Type-C® upstream port (data only) (SuperSpeed USB 10 Gbps, USB 3.2 Gen2)
4 x USB Type-A downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen2)
1 x Audio line-out
1 x RJ45 (2.5GbE)
1 x USB Type-A downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) with BC1.2 power charging
2 x USB Type-C® downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) with power charging (15W)

World's first 40" 5K monitor certified for 5-Star Eye Comfort[1]

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.
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Smoother visual experience

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

Ambient Light Sensor

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

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​

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)

Partition your display as if there were two 2560x2160 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 EPR (Extended Power Range)[2] power delivery.
Extensive connectivity
Connect all your devices with over a dozen ports, including pop-out quick access ports.
Stay online
Connect to the Ethernet with a built-in RJ45 port with up to 2.5GbE.

Works seamlessly with devices on macOS®*

Tested with devices on macOS, this Thunderbolt monitor with P3 colour is your ideal companion for Mac® devices.
*Based on internal testing of Dell monitors connected to devices on macOS via Thunderbolt, June 2024. Some features may not be supported.

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.[3]
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.[4]

Dell Colour Management

Customisable colours

Easily calibrate your monitor’s colours on the new Dell Colour Management software[5], 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

Sustainable materials
This monitor is made with 50% recycled steel, 85% post-consumer recycled plastics including closed-loop plastics, 100% recycled aluminium[6] and at least 20% recycled glass[7].
Energy conservation
Using PowerNap mode in Dell Display Manager lowers energy use by up to 14.8%.[8]
Packaging innovation
Ships in a box made with 100% renewable content that is also recyclable.[9]
Elevated standards
Meets highest environmental standards and registered EPEAT Gold with Climate+ designation - this monitor has met industry best practices for decarbonisation.[10]

Connectivity Options

Ports & Slots

1. Security lock slot (based on Kensington Security Slot™)
2. Power connector
3. HDMI 2.1
4. DisplayPort 1.4
5. Thunderbolt™ 4 downstream port (15W) for daisy chaining
6. Thunderbolt™ 4 upstream port (up to 140W EPR [11])
7. USB Type-C upstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen 2)
8. 3x USB Type-A downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen 2)
9. Audio Line-out
10. USB Type-A downstream port (SuperSpeed 10 Gbps, USB 3.2 Gen 2)
11. RJ45 port
12. Stand lock
13. 2 x USB Type-C downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) with power charging (15W)
14. USB Type-A downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen 2) with BC1.2 power charging
15. Speakers

Included Cables
1. Power cable
2. DisplayPort 1.4 cable - 1.8 m
3. USB Type-A to USB Type-C Gen 2 cable - 1 m
4. Thunderbolt™ 4 active cable - 1.5 m
5. HDMI 2.1 cable - 1.8 m
CES® 2024 Innovation Awards Honoree: Dell UltraSharp 40 Curved ThunderboltTM Hub Monitor - U4025QW
Product category: Computer Peripherals & Accessories
The CES Innovation Awards are based upon descriptive materials submitted to the judges. CTA did not verify the accuracy of any submission or of any claims made and did not test the item to which the award was given.
  1. Based on Dell analysis of 5120x2160 resolution monitors, December 2023.
  2. Charging speed drops to 90W if PC does not support Extended Power Range (EPR). 90W is within USB Standard Power Range (SPR).
  3. Feature availability depends on the network policy set out by the company/IT.
  4. Tools including SCCM/InTune and Command Line Interface scripts.
  5. Compatible with external colorimeter (Portrait Displays: C6 HDR2000, X-Rite: i1Display Pro, i1Display Pro Plus, Klein Instruments: K10, Calibrate: ColorChecker Display Pro, ColorChecker Display Plus), sold separately.
  6. Based on internal analysis, November 2023. Plastic percentage is based on total plastic weight. Recycled steel: 50% recycled steel in monitor bracket. Recycled aluminum: 100% recycled aluminum in monitor stand.
  7. Applicable to all new monitors launching in CY 2024. Recycled glass is present in monitor panel. Based on internal analysis, January 2024.
  8. The calculation assumes the monitor is used for 10 hours a day, including 1.5 hours of idle time with display in sleep mode when the device screensaver is on. Based on internal analysis, May 2023.
  9. Applies to all Dell monitors launched since 2023. Made from FSC mix sources which is a mix of material from FSC certified forests, recycled content and/or FSC controlled wood. Based on internal analysis, August 2023.
  10. Based on internal analysis, November 2023. Based on EPEAT Climate+ Designations achieved in all applicable countries. EPEAT registered where applicable. EPEAT registration varies by country.
  11. Charging speed drops to 90W if PC does not support Extended Power Range (EPR). 90W is within USB Standard Power Range (SPR).