Technical Specification

Product: Dell UltraSharp U4025QW Curved Thunderbolt Hub Monitor

Display diagonal: 101.6 cm (40")

Actual viewing size: 39.7"

Curvature: 2500R

Display resolution: 5120 x 2160 pixels @ 120Hz

HD type: 5K Ultra HD

Display technology: LED Edgelight System

Panel Type: IPS Black Technology

Brightness: 450 cd/m² (typical) , 600 cd/m² (HDR Peak)

Contrast Ratio: 2000 to 1 (typical)

Response time: 8 ms (Normal mode) , 5 ms (Fast mode)

Native aspect ratio: 21:9

Display Screen Coating: Anti-Glare with 3H hardness

Viewing angle, horizontal: 178°

Viewing angle, vertical: 178°

Adjustability: Height, Tilt, Swivel

Height adjustable: 150 mm

Tilt: -5° / +21°

Swivel: -30° / +30°

PbP / PiP: Yes

Keyboard, Video and Mouse (KVM): Yes

Daisy Chain Availability: Yes

Audio Output: 1 x Audio line-out

Built-in Speaker: 2 x 9 W

VESA mounting: 100 x 100 mm (behind attached VESA Cover)

Product colour: Silver

Weight: 12.22 kg

Warranty: 3-year Advanced Exchange

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)
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 Ethernet port, 2.5GbE
12. Stand lock
13. 2x 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

Features & Design

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

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.

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 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 EPR (Extended Power Range) 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.
• 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.

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.