2 layers82 × 42 mm

Open authenticator
Open-Authenticator/hardware-design
Hardware design files for open authenticator
86 parts42MIT
Printed circuit boards designed in KiCad and published on GitHub, each with its parts, layers and size, its README and its files; open any of them in PCBKit.

Open-Authenticator/hardware-design
Hardware design files for open authenticator

Kingdragoncat/Knox-Key
Knox Key is a high-performance, open-source hardware authenticator designed for secure digital identity and cryptographic operations.