The Dell UltraSharp 40 Curved Thunderbolt Hub Monitor U4025QW is a 39.7-inch professional ultrawide display designed for high-resolution productivity, content creation, engineering workflows, and multi-application desktop environments. It combines a 5120 x 2160 resolution, 21:9 aspect ratio, 2500R curvature, and IPS Black technology with an integrated Thunderbolt 4 hub.
Display and Performance
The U4025QW provides a maximum preset resolution of 5120 x 2160 at 120 Hz. Its IPS Black panel uses an anti-glare coating with 3H hardness and provides a typical 2000:1 contrast ratio. Brightness is rated at 450 cd/m² typical, with HDR peak brightness up to 600 cd/m².
The monitor supports 100% sRGB and BT.709 coverage, 99% DCI-P3 and Display P3 coverage, and 1.07 billion colors using 8-bit plus A-FRC processing. Dell specifies an average Delta E of less than 2 for DCI-P3, Display P3, sRGB, and BT.709 color spaces.
Connectivity and Hub Functions
The integrated Thunderbolt 4 connectivity provides a high-bandwidth connection for compatible computers and peripherals. The monitor also includes DisplayPort 1.4, HDMI, USB Type-A, USB Type-C, and audio connectivity. An integrated USB hub and KVM switch support peripheral management and multi-computer workstation configurations.
Deployment and Compatibility
The U4025QW supports VESA mounting using a 100 x 100 mm interface. The adjustable stand supports height adjustment, tilt, and swivel positioning. The monitor operates from a 100V AC to 240V AC input range and is designed for professional desktop and workstation environments.
Key Features
- 39.7-inch curved IPS Black display with 5120 x 2160 resolution and 120 Hz refresh rate.
- Thunderbolt 4 hub connectivity for compatible computers and peripherals.
- 21:9 ultrawide format with 2500R curvature for extended horizontal workspace.
- 99% DCI-P3 and Display P3 coverage with average Delta E below 2.
- Integrated USB hub and KVM switch for workstation peripheral management.
Applications
The U4025QW is suited to professional workstations requiring a large ultrawide workspace, including engineering, technical design, content creation, data analysis, software development, and multi-window productivity applications.
DC Supplies Product Note
For workstation deployments, the U4025QW's 5120 x 2160 resolution at 120 Hz and integrated Thunderbolt 4 hub make the display particularly relevant where a single monitor connection needs to support a high-resolution desktop together with connected peripherals. Verify the host computer's Thunderbolt and display-output capabilities before deployment.
Specifications
| Specification | Details |
|---|
| Brand | Dell |
| Part Number / MPN | U4025QW |
| Product Type | Curved Thunderbolt Hub Monitor |
| Series | UltraSharp |
| Display Size | 39.7 inches |
| Panel Type | IPS Black Technology |
| Aspect Ratio | 21:9 |
| Maximum Resolution | 5120 x 2160 |
| Maximum Refresh Rate | 120 Hz |
| Curvature | 2500R |
| Brightness | 450 cd/m² typical; 600 cd/m² HDR peak |
| Contrast Ratio | 2000:1 typical |
| Response Time | 8 ms Normal; 5 ms Fast |
| Color Gamut | sRGB 100%; BT.709 100%; DCI-P3 99%; Display P3 99% |
| Thunderbolt | Thunderbolt 4 |
| DisplayPort | 1 x DisplayPort 1.4 |
| USB Type-A | 5 x USB 3.2 Gen 2 downstream ports |
| USB Type-C | 2 x USB 3.2 Gen 2 downstream ports |
| Built-in Devices | USB Hub and KVM Switch |
| VESA Mounting | 100 x 100 mm |
| Input Voltage | 100V AC to 240V AC |
| Operating Temperature | 32°F to 104°F (0°C to 40°C) |
| Operating Humidity | 10% to 80%, non-condensing |
| Warranty | 3-Year Limited Hardware and Advanced Exchange Service |
Frequently Asked Questions
What resolution does the Dell U4025QW support?
The U4025QW supports a maximum preset resolution of 5120 x 2160 at up to 120 Hz.
Does the U4025QW support VESA mounting?
Yes. The monitor provides a 100 x 100 mm VESA mounting interface.
Does the U4025QW include a Thunderbolt 4 connection?
Yes. The monitor includes Thunderbolt 4 connectivity and functions as a Thunderbolt hub for compatible systems and peripherals.
Does the monitor include a built-in KVM switch?
Yes. Dell specifies an integrated KVM switch along with a USB hub for peripheral management.
What type of panel does the U4025QW use?
The U4025QW uses an IPS Black panel with a 2500R curved display and anti-glare 3H coating.
