Cable Matters - GoKawiil

Developer patches $45 USB-C hub firmware to work as Nintendo Switch 2 dock

A hobbyist known as mkopec modified the firmware of a roughly $45 Cable Matters USB-C hub, adding about 540 bytes of code to make it function as an unofficial Nintendo Switch 2 dock. The patch makes the hub respond to Nintendo's proprietary vendor messages so it is recognized as an official dock, enabling TV mode, and a related tweak also fixes washed-out HDR over HDMI. The modder said the hub still works normally with a PC and phone after the change.

tomshardware.com · 2026-11-12

Developer modifies €40 Cable Matters USB-C hub to run as Nintendo Switch 2 dock

A hobbyist dissected a Cable Matters 7-in-1 USB-C hub to figure out why it wouldn't output video to a TV from a Nintendo Switch 2, despite correctly negotiating USB-C power delivery and DisplayPort Alt Mode. Using a USB-PD sniffer and fwupd's existing support for the hub's VL103 controller chip, they traced the issue to Nintendo's proprietary vendor-defined PD messaging, which the standard hub firmware doesn't implement.

blog.nozomi.space · 2026-11-09