Black CAN cables are terminating cables. These will connect between a single device and the ECU or between port 1 on a CAN expander hub and the ECU. When multiple devices are linked, via a CAN expander hub, white cables are used to connect all intermediate devices. CAN expander hub ports 2, 3, 4, and 5 would use a white cable. The last port, port 6 on the 6-port hub or port-3 on the mini hub, would also use a black cable.
All CAN accessories are supplied with a black cable. CAN hubs are supplied with one black and one white cable.
If you're unsure what cable(s) you need, feel free to contact us.