This Link CAN Connection Cable is required to add CAN communications and power to recently released G4X Plugin ECUs which have the new 4-pin powered CAN connector (not the older 5-pin CAN connector). It plugs directly into the socket on the ECU PCB, provides CAN, and a protected 12V supply to allow easy connection of CAN accessories. 

Suitable for powering a CAN Lambda, Dash, EGT amplifier or other similar low-powered CAN devices which have a total continuous current draw of <3A.