DezKVM Go

Overview

The DezKVM Go is a compact, open-source KVM-over-USB device that lets you control any headless computer directly from your laptop's browser. It captures the target machine's HDMI output at up to 1080p 25fps using an MS2109 capture chip, while a CH9329 HID controller emulates a full keyboard and mouse over USB. The entire interface runs in any Chromium-based browser via the Web Serial API, so there are no drivers or software to install on the host machine.

Built around a custom PCB with an SL2.1A USB hub controller and CH340C USB-to-serial bridge, the DezKVM Go routes video capture, HID emulation, and serial communication through a single USB-C cable to the host laptop. A second USB-C port and HDMI connector attach to the target computer. The Go server firmware, written in Go, provides HTTPS-based live video and audio streaming, paste-to-remote via virtual keyboard events, OCR-based text copy from the remote screen, and configurable mouse modes including absolute/relative positioning and scroll inversion.

The hardware design files, including KiCad PCB layouts and 3D-printable enclosure models, are available on GitHub under a CC BY-NC-ND license, while the firmware is released under GPLv3. At just 54 x 17 x 85mm and under $25, the DezKVM Go is one of the most affordable open-source KVM solutions available, making it ideal for sysadmins, homelab enthusiasts, and anyone who needs to manage headless machines without bulky KVM switches.