Dell SD25TB4 Pro Thunderbolt 4 Smart Dock

BH #DESD25TB4 • MFR #DELL-SD25TB4
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Dell SD25TB4 Pro Thunderbolt 4 Smart Dock
Key Features
  • 2 x Thunderbolt 4 Ports
  • 2 x DisplayPort 1.4 | 1 x HDMI 2.1
  • 1 x USB-C 3.2 Gen 2 DisplayPort
  • Up to 8K (7680x 4320) at 60 Hz
Boost your AI PC productivity with support for up to four displays and gain additional connectivity with the SD25TB4 Pro Thunderbolt 4 Smart Dock from Dell. This dock supports up to four displays at up to WQHD (3440 x 1440) at 60 Hz, two displays at 6K (6144 x 3456) at 60 Hz, or one display at 8K (7680 x 4320) at 60 Hz. Connect external monitors using the two DisplayPort 1.4 ports, the HDMI 2.1 port, and the USB-C 3.2 Gen 2 Multi-function DisplayPort 1.4 port. The two Thunderbolt 4 ports are also available to connect to your monitors and provide up to 40 Gb/s of data transfer and 15W power delivery.
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Dell SD25TB4 Overview

Boost your AI PC productivity with support for up to four displays and gain additional connectivity with the SD25TB4 Pro Thunderbolt 4 Smart Dock from Dell. This dock supports up to four displays at up to WQHD (3440 x 1440) at 60 Hz, two displays at 6K (6144 x 3456) at 60 Hz, or one display at 8K (7680 x 4320) at 60 Hz. Connect external monitors using the two DisplayPort 1.4 ports, the HDMI 2.1 port, and the USB-C 3.2 Gen 2 Multi-function DisplayPort 1.4 port. The two Thunderbolt 4 ports are also available to connect to your monitors and provide up to 40 Gb/s of data transfer and 15W power delivery.

With up to 130W power delivery for compatible devices, the SD25TB4 includes four 10 Gb/s USB-A 3.2 Gen 2 ports and one USB-C 3.2 Gen 2 port for transferring data and charging devices. Connect to a high-speed wired network using the 2.5GbE RJ45 port. The Kensington security slot is available for additional protection from theft or misplacement when taking this dock to the office or on the go. This dock is compatible with Windows, Ubuntu, Red Hat Enterprise Linux, ChromeOS, and macOS.

Connect Your Way
Configure your workspace to your liking with an ambidextrous USB-C cable that can be routed left or right.
Most Manageable
Remotely manage your smart docks without end-user presence from the Dell Device Management Console, which is the industry's first holistic peripheral management solution that configures, deploys, and updates smart docks over Wi-Fi.
Work Securely
Keep working confidently with enterprise-grade WPA-3 192-bit encryption for secure Wi-Fi communication. Safeguard your sensitive data with tamper-resistant, hardware-based encryption built into your Dell Pro Thunderbolt 4 Smart Dock.
Effortless Maintenance
Reduce IT efforts by scheduling updates during off-hours, while ensuring fleetwide firmware compliance and eliminating end user interruptions. Unlock out-of-band management on select Intel vPro PCs with Intel Active Management Technology (Intel AMT) over Thunderbolt via the connected dock.
Designed for Sustainability
The Dell SD25TB4 Pro Thunderbolt 4 Smart Dock is built with at least 65% post-consumer recycled materials and packaged with 100% recycled or renewable packaging.
UPC: 884116493730

Dell SD25TB4 Specs

Key Specs
USB I/O
2x USB-C (Thunderbolt 4)
1x USB-C 3.1/3.2 Gen 2 / Supports Video Alt Mode
1x USB-C 3.1/3.2 Gen 2
4x USB-A 3.1/3.2 Gen 2
Video I/O
2x DisplayPort 1.4
1x HDMI 2.1
Max Resolution
4 Displays Supported:
7680 x 4320 at 60 Hz (Single)
3840 x 2160 at 60 Hz (Triple)
3840 x 2160 at 60 Hz (Quad)
Audio I/O
No
Network I/O
1x RJ45 (2.5 GbE)
Host Connection
USB-C (Thunderbolt 4) Supporting USB Power Delivery up to 96 W via Built-In Connector
USB I/O
2x USB-C (Thunderbolt 4)
1x USB-C 3.1/3.2 Gen 2 / Supports Video Alt Mode
1x USB-C 3.1/3.2 Gen 2
4x USB-A 3.1/3.2 Gen 2
Video I/O
2x DisplayPort 1.4
1x HDMI 2.1
Max Resolution
4 Displays Supported:
7680 x 4320 at 60 Hz (Single)
3840 x 2160 at 60 Hz (Triple)
3840 x 2160 at 60 Hz (Quad)
Audio I/O
No
Network I/O
1x RJ45 (2.5 GbE)
Host Connection
USB-C (Thunderbolt 4) Supporting USB Power Delivery up to 96 W via Built-In Connector
Power Source
Included AC Adapter with Barrel Connector ( W)
OS Compatibility
Windows 10 to 11 / Ubuntu / Chrome OS / macOS
Lock Slot
Yes
Dimensions
8.07 x 3.54 x 1.39" / 20.5 x 8.99 x 3.53 cm
Weight
1.28 lb / 0.58 kg
Packaging Info
Package Weight
3.6 lb
Box Dimensions (LxWxH)
11.9 x 9.4 x 2.9"

Dell SD25TB4 Reviews

It just works!

By Matthew
Rated 5 out of 5
Date: 2026-08-04

I telework and use my home office setup for my work laptop and my personal laptop. I needed a replacement dock, as my prior 7 year old dock had started to fail. I originally purchased this same model new from another retailer, only to find that the Dell service tag was listed as having been sold in another country and that there would be warranty and service limitations for me in the US. I returned it and learned about the value of authorized resellers. They sell products that will receive Dell’s full (and pretty awesome) warranty. B&H was cheaper than Dell, and is an authorized reseller. So buying from B&H was a no-brainer. Shipping was free and the dock arrived in 2 days. Installation was basically plug and play. The dock is a new model and came with the latest Dell firmware. (Dell dock firmware utility can be downloaded from Dell to a Windows PC, if you want to check.) For my use case, I switch between a Windows PC and a MacBook. I used two USB-C to DisplayPort cables to run my two 32 inch monitors. After plugging everything in and connecting my Mac or PC, both monitors just worked. (On the Mac, I needed to authorize the Thunderbolt connection to the dock.) And for once, from the get-go, the orientation of the monitors was perfect without any adjustments in the display utilities for each device. Monitors are recognized quickly when plugging in an already powered on device. This is a quality dock with an excellent warranty from an authorized Dell reseller at a lower price than Dell. You just can’t beat it. Dell keeps on top of their firmware development, periodically releasing firmware updates, supporting their docks throughout their long service lives, even beyond the warranty period. Highly recommended.

See any errors on this page?

Is this compatible with XPS 13 9305 (has TB4)? I ...

Is this compatible with XPS 13 9305 (has TB4)? I ask since WD22TB4 is obsolete and according to Dell SD25TB4 is not compatible?
Asked by: Dell
The Dell SD25TB4 Pro Thunderbolt 4 Smart Dock is not listed by Dell as a supported dock for the XPS 13 9305. With the Dell XPS 9305, you could use the Satechi Thunderbolt 4 Multimedia Pro Dock, B&H # SASTDT4PMMUS.
Answered by: Kenneth C
Date published: 2025-11-26
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