SD25TB5 / WD25TB5 with up to 300W Power Delivery

Complete docking station specifications and compatibility details

97 compatible laptop models
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Docking Station Details

Complete specifications and features

Dell Pro Thunderbolt 5 Smart Dock SD25TB5 and Dell Pro Thunderbolt 5 Dock WD25TB5 are next-generation docking stations built on Thunderbolt 5 technology. They support ultra-high bandwidth display output up to 8K and 4K@120Hz with Display Stream Compression, dual Thunderbolt 5 ports, DP 2.1 support, and extremely high power delivery up to 300W for Dell commercial notebooks.

Model Differences

SD25TB5 is positioned as a Smart Dock for enterprise environments with enhanced manageability and smart deployment features, while WD25TB5 is marketed as a standard Pro Dock. Hardware specifications, display capabilities, ports, and power delivery are otherwise identical.

SD25TB5 / WD25TB5 with up to 300W Power Delivery

Specifications

Display Support

  • 🖥️DP 1.4 Without DSC:
  • Max: 5K @ 60Hz
  • 4 x QHD (2560x1440) @ 60Hz
  • 3 x WQHD (3440x1440) @ 60Hz
  • 2 x 4K (3840x2160) @ 60Hz
  • 1 x 5K WUHD (5120x2160) @ 60Hz
  • 🎯DP 1.4 With DSC:
  • 4 x 4K (3840x2160) @ 60Hz
  • 3 x 4K (3840x2160) @ 60Hz
  • 2 x 6K (6144x3456) @ 60Hz
  • 1 x 8K (7680x4320) @ 60Hz
  • DP 2.1 / TB5 With DSC:
  • 4 x 4K (3840x2160) @ 120Hz
  • 3 x 4K (3840x2160) @ 120Hz
  • 2 x 6K (6144x3456) @ 60Hz
  • 1 x 8K (7680x4320) @ 60Hz

Video Interfaces

  • displayport: 2 x DisplayPort 2.1
  • hdmi: 1 x HDMI 2.1
  • usb c display: 1 x USB-C 3.2 Gen 2 (Multi-function DisplayPort 2.1)
  • thunderbolt: 2 x Thunderbolt 5

Ports & Connectivity

  • usb a: 4 x USB-A 3.2 Gen 2 (10 Gbps)
  • usb c: 1 x USB-C 3.2 Gen 2 (10 Gbps)
  • note: USB-A ports can deliver power even without a notebook attached

Power & Connection

  • adapter: 330W AC Power Adapter
  • power delivery dell: Up to 300W
  • power delivery non dell: Up to 240W
  • Connection: Thunderbolt 5 (USB-C connector)
  • Cable Length: 0.83 m

Compatible Laptops

Verified compatibility with Dell laptops

Full Compatibility

90 models

Frequently Asked Questions

Find answers to common questions about SD25TB5 / WD25TB5 with up to 300W Power Delivery

The number of displays that can be connected is limited by multiple factors including CPU, GPU, interface capabilities, and data transfer rates, not just the docking station itself. This is a multi-faceted limitation rather than a single constraint imposed by the docking station alone.
Smart Docking (SD series) is Dell's new docking station lineup introduced in 2025. Building upon traditional docking stations, it adds features such as wireless connectivity and remote management capabilities. Smart Docking can receive firmware updates independently, without requiring connection to a host computer.

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