Like trailer hitches and ball mounts, electrical connectors range all over the board in shape, size and capability, but no matter what your trailers 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 7-way RV blade replacement harness is designed to replace an existing 7-way plug on your trailer and supply power for tail lights, turn signals, electric trailer brakes, a 12-volt battery, reverse lights and brake lights, as well as a ground connection. It features color-coded wires for easy splicing into your trailers wiring system. With a 10 cable and protective plastic sleeve, this harness is perfect for RV travel trailers, providing more than enough length to accommodate virtually any vehicle-trailer combination and maintaining a solid electrical connection in spite of the elements. This 7-way RV blade connector is a male-end plug, specifically designed for the trailer side of the connection.