The Extron CPI 51 is a DC input to DC output power injector. It supplies auxiliary power to select Extron active cables when source power is insufficient to properly charge or operate an attached peripheral device. It works with any 12 V, 0.4 A or greater external power source. Housed in a small, ruggedized plastic enclosure with locking connectors, the CPI 51 is easy to integrate and mount in space constrained environments.