This article covers Kensington SD3210U3 USB-C 10Gbps トリプルビデオ ドライバーレスドック 100W PD.

Overview

The Kensington SD3210U3 (model K32802NA) is a fully-featured 10-in-1 USB-C docking station designed for Windows laptops that support Thunderbolt 5/4, USB4, or USB-C Alt Mode. It delivers up to 100W of power delivery to charge your notebook while driving three external displays at 4K @ 30Hz or a single 8K @ 30Hz (with DSC v1.2 support). The housing uses 71% post-consumer recycled plastic, and the dock is completely driverless??just plug and play. Port selection includes two HDMI 2.1 ports, one DisplayPort 1.4, five USB 10Gbps ports (one USB-C, four USB-A), gigabit Ethernet, and a combo audio jack. Kensington’s KonstantCharge technology keeps power flowing to connected peripherals even after the host laptop is undocked, making this a practical choice for hybrid workers and power users alike.

Connectivity & Compatibility

This dock requires a USB-C host with Alt Mode (DisplayPort over USB-C) and supports Thunderbolt 5, Thunderbolt 4, USB4, and USB-C Alt Mode machines running Windows 10 or 11 (64-bit). macOS is not supported. The maximum USB data rate is 10Gbps, and the video outputs can deliver up to 4K @ 30Hz on three screens simultaneously or 8K @ 30Hz on a single display??provided the laptop, dock, and monitor all support DSC v1.2. The four USB-A ports are all 10Gbps and feature KonstantCharge: they continue to supply power to your keyboard, mouse, or phone even when the laptop is disconnected. Gigabit Ethernet ensures stable wired networking, and the combo audio jack handles headsets or speakers. Kensington also includes a security lock slot for physical tethering.

Product Info

The Kensington SD3210U3 launched in the second half of 2025 and sits in the mid-to-high tier of universal USB-C docks. Its street price in Japan is around 25,000??30,000 yen, backed by a 3-year limited warranty (registration required). The package includes the dock, a 100W AC adapter, and a quick-start guide. A VESA-mountable bracket (model K34050WW) is sold separately. Compared to similar-priced alternatives, the SD3210U3 stands out for its five 10Gbps ports, driverless operation, and thoughtful power-management features.

Best Use Cases

First, professionals who rely on multiple monitors. Stock traders, data analysts, and developers can run three 4K displays from a single USB-C cable. The 100W PD keeps the host laptop charged even under heavy load, so there is no need for a separate power brick. Second, hot-desk workers and frequent travelers. The dock works instantly with any compatible Windows laptop without installing drivers??ideal for shared offices, meeting rooms, or co-working spaces. KonstantCharge ensures that peripherals like wireless chargers or desk lights stay powered after you undock. On the other hand, this dock is not suitable for macOS users (no support) or anyone needing more than one DisplayPort output for high-refresh-rate gaming (only one DP 1.4 port; HDMI 2.1 is limited to 4K @ 60Hz typical). If you need higher refresh rates or run a Mac, consider a Thunderbolt-specific dock or a DisplayLink-based adapter instead.

Product Disclosure (Amazon)

  • Manufacturer: Kensington
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B0G2MWGYL1
  • Note: This article covers a manufacturer-made product based on Amazon listing details.