Quanta75 is a fully custom open-source-hardware mechanical keyboard PCB made in KiCad

The Quanta75 is a 75% hotswap ISO mechanical keyboard, with rotary encoder and integrated USB hub with vertical USB A port.

It is a fully custom designed PCB based on an RP2040 MCU, featuring quality of life additions like hostswap-ready mechanical switch sockets, easily accessible USB ports (from a built-in hub), OLED display and rotary encoder.
The PCB is designed to be affordably made at overseas manufacturers (like JLCPCB) with assembly service and parts included.

Open Source Hardware ID BE000010, Licensed under CERN-OHL-P-2.0 :

It is build in tandem with RMK, a fully open-source customizable firmware written in Rust (MIT License).

See https://obsilab.com/projects/quanta-keyboard for more details.