Overview
The Dell Pro Thunderbolt 4 Dock WD25TB4 is a professional docking station that connects compatible notebooks and desktop systems through Thunderbolt 4. It expands a host system with multiple display outputs, USB 10Gbps connectivity, 2.5 Gigabit Ethernet, Thunderbolt 4 ports, and high-power USB Power Delivery for workstation and enterprise environments.
Thunderbolt 4 and Display Connectivity
The WD25TB4 provides two Thunderbolt 4 ports along with two DisplayPort 1.4 outputs, one HDMI 2.1 port, and one USB-C multifunction DisplayPort 1.4 output. The dock supports up to four external displays, with supported configurations reaching up to four 4K displays at 60Hz when Display Stream Compression is supported by the host system and display configuration.
USB and Network Connectivity
Six USB ports provide peripheral connectivity, including four USB-A 3.2 Gen 2 ports and one USB-C 3.2 Gen 2 data port, plus one USB-C multifunction DisplayPort port. The integrated RJ45 interface supports 10/100/1000/2500 Mbps Ethernet for high-speed wired network connectivity.
Power Delivery
The WD25TB4 uses a 180W AC power adapter and can provide up to 130W of power delivery to compatible Dell systems or up to 96W to non-Dell systems. USB ports also provide dedicated power output for connected peripherals.
Compatibility and Management
The dock supports Windows 10 and Windows 11, Ubuntu 24.04, macOS, ChromeOS 137, and Red Hat Enterprise Linux 9.6. Dell management capabilities include firmware updates, MAC Address Pass-Through, PXE Boot, Wake-on-LAN, port disablement, Dock Power Button Sync, and Kernel DMA Protection.
Key Features
- Thunderbolt 4 host interface with two Thunderbolt 4 ports
- Supports up to four external displays
- 2.5 Gigabit Ethernet through RJ45
- Up to 130W power delivery to compatible Dell systems
- HDMI 2.1 and DisplayPort 1.4 video connectivity
Applications
- Enterprise laptop docking and workstation deployment
- Multi-monitor office and professional workstation setups
- High-bandwidth wired network connectivity
- Thunderbolt 4 peripheral expansion
- Managed corporate computing environments
DC Supplies Product Note
The WD25TB4 is suited to deployments where a single Thunderbolt 4 connection needs to provide multi-display output, high-speed USB expansion, 2.5GbE networking, and substantial host power delivery.
Specifications
| Specification | Details |
|---|
| Brand | Dell |
| Part Number / MPN | WD25TB4 |
| Manufacturer Part Number | 1KJG4 |
| Product Type | Thunderbolt 4 Docking Station |
| Host Interface | Thunderbolt 4 |
| Thunderbolt Ports | 2 × Thunderbolt 4 |
| DisplayPort | 2 × DisplayPort 1.4 |
| HDMI | 1 × HDMI 2.1 |
| USB-A | 4 × USB 3.2 Gen 2, 10 Gbps |
| USB-C | 1 × USB 3.2 Gen 2, 10 Gbps; 1 × USB-C multifunction DisplayPort 1.4 |
| Ethernet | RJ45, 10/100/1000/2500 Mbps |
| Maximum Displays | 4 |
| Maximum Display Resolution | Up to 8K at 60Hz, depending on host and configuration |
| Power Adapter | 180W AC |
| Power Delivery | Up to 130W Dell systems; up to 96W non-Dell systems |
| Cable Length | 2.72 ft |
| Supported Operating Systems | Windows 10, Windows 11, Ubuntu 24.04, macOS, ChromeOS 137, Red Hat Enterprise Linux 9.6 |
| Security | Kensington Security Slot and Noble Wedge Security Slot |
| Warranty | 3-Year Limited Hardware Warranty with Advanced Exchange |
Frequently Asked Questions
What is the Dell WD25TB4?
The WD25TB4 is a Dell Pro Thunderbolt 4 docking station designed to expand compatible computers with display, USB, networking, Thunderbolt, and power-delivery connections.
How many displays can the WD25TB4 support?
The dock supports up to four external displays, with supported resolutions and refresh rates dependent on the host system, graphics capability, connection type, and display configuration.
How much power can the WD25TB4 deliver?
The WD25TB4 provides up to 130W to compatible Dell systems and up to 96W to non-Dell systems.
Does the WD25TB4 have 2.5GbE networking?
Yes. The dock includes an RJ45 Ethernet interface supporting 10/100/1000/2500 Mbps connectivity.
What video ports are available?
The WD25TB4 provides two DisplayPort 1.4 ports, one HDMI 2.1 port, one USB-C multifunction DisplayPort 1.4 port, and two Thunderbolt 4 ports.
