Like trailer hitches and ball mounts, electrical connectors range all over the board in shape, size and capability, but no matter what your trailer's electrical functions are, you need a solid connection to keep the power flowing and ensure safety on the road. CURT electrical connectors are designed and manufactured to give you a reliable connection every time you plug in your trailer. This 6-way square connector is designed to supply power for tail lights, turn signals, electric trailer brakes, a 12-volt battery and brake lights, as well as a ground connection. It features durable rubber-molded construction and is made with 12" of standard color-coded wire loop. It includes both a vehicle end and trailer end and can be cut to splice into existing wiring or left as a loop to serve as a useful extension harness. 6-way square wiring connectors are commonly found on popup campers.