Harness Box V1

The harness box is like an adapter between the car harness and the comma 3X. An integrated relay ensures that you can remove the c3x without your car giving you an error message.
It connects to your device using an OBD-C cable and to OBD power via an RJ45 Ethernet cable

This harness box is compatible with Comma 3, Comma 3X, and Comma 2 devices, supporting all harness cables sold by Comma before October 2024 (when the connector was changed to a smaller size)

All items are shipped from Germany.
International shipping to the USA and Canada currently takes about 10-14 days.