Docking station Dell Pro Thunderbolt 4 Smart Dock SD25TB4 with 90W Power Delivery and dual display support

The Dell Pro Thunderbolt 4 Smart Dock SD25TB4 with 90W Power Delivery and dual display support is a professional docking station designed to centralize connectivity for Thunderbolt 4 and USB-C laptops. It provides a compact hub for power delivery, video output and peripheral connections while enabling a simplified workstation setup. The dock supports dual external displays and delivers up to 90W of power to compatible laptops, reducing the need for separate chargers and multiple adapters.

Advantages

This docking station integrates Thunderbolt 4 performance with a single-cable workflow, combining high-speed data transfer, robust video capabilities and laptop charging into one device. It simplifies cable management on desk or mobile workspaces and supports simultaneous use of multiple peripherals such as external drives, Ethernet and USB accessories. The 90W power delivery helps maintain laptop battery charge during demanding tasks while the dual display support expands screen real estate for multitasking and professional workflows.

Suitable for

• Office workstations requiring multiple monitors and peripheral connectivity
• Hybrid and remote work setups where a single connection to a docking hub is preferred
• Professional users such as analysts, developers and content creators who use external displays and high-speed storage
• Small meeting rooms or hot-desk environments that need quick laptop docking and charging

Key specifications

• Thunderbolt 4 / USB-C host connectivity for single-cable docking
• Power Delivery up to 90W to charge compatible laptops
• Dual display support via Thunderbolt/USB-C video passthrough (supports common dual monitor configurations; actual resolutions dependent on host capabilities)
• Multiple downstream ports for peripherals including USB-A, USB-C, and Ethernet
• High-speed data transfer capabilities consistent with Thunderbolt 4 standards
• Compact desktop footprint suitable for office and home desks

How to use

Connect the docking station to a compatible Thunderbolt 4 or USB-C laptop using the supplied cable. Attach external monitors to the dock’s display outputs or to the host connection according to your preferred dual display arrangement; check the laptop’s specifications for supported resolution and refresh rate combinations. Plug in peripherals such as external drives, keyboard, mouse and Ethernet cable to the available ports. Ensure the dock is connected to mains power to enable the 90W Power Delivery feature and to provide stable operation for connected devices.

Usage recommendations

For optimal dual display performance and full power delivery, use a Thunderbolt 4-certified cable and verify that the laptop firmware and operating system support Thunderbolt 4 features. When connecting high-bandwidth devices, consider connecting directly to the dock’s high-speed ports rather than daisy-chaining multiple peripherals to preserve performance.