Comma.ai Launches a PCIe Gen4 X4 to USB4 Dock with Open-Source Firmware

Comma.ai has introduced Chestnut, a PCIe Gen4 x4 to USB4 dock with open-source firmware that connects a desktop GPU to the comma four device, enabling it to run larger AI driving models. The Ready to Drive kit includes a GPU and accessories for in-car setup, enhancing openpilot's compute capabilities significantly.