Kensington MD125U4 USB4 Dual HDMI Docking Station (DFS)

Docks

This is what matters about Kensington MD125U4 USB4 Dual HDMI Docking Station (DFS).

About

A USB4 dock carrying Microsoft’s "Designed for Surface" (DfS) validation without paying the Thunderbolt logo tax — Kensington skips the TB4 certification to hit a lower MSRP while exposing the same 40Gbps tunnel. Deploys two full-size HDMI 2.1 ports capable of dual 4K@120Hz (with host DSC), 2.5GbE on a Realtek NIC, and 100W USB-C passthrough (requires a minimum 80W upstream adapter to sustain full host charging). Fast-Charging on downstream ports is disabled on purpose to concentrate voltage on the host laptop.

Specs

HDMI version
2.1
DP Alt Mode
Yes
PD passthrough to host
100W
Max resolution
3840x2160@120Hz

Ports: 2× HDMI 2.1, 1× USB-C 3.2 Gen2 (10Gbps), 2× USB-A 3.2 Gen2 (10Gbps) and 1× Ethernet (2.5 Gigabit)

Confirmed with

  • Notebook (generic)

    Kensington lists the MD125U4/K32857 for Surface Laptop Go, SE, and Surface Laptop 3 through 7th Edition. Monitor count and charging behavior vary by the connected Surface model.

    Source: www.kensington.com
    Confirmed — caveat
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