Electrical connectors range in shape, size and capability - and you need a solid connection to keep the power flowing and ensure safety on the road. CURT electrical connectors are designed to give you a reliable connection every time you plug in your trailer. This 7-way round connector plugs into a USCAR socket and supplies 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 is intended to be a replacement trailer connector for specific Ford, GM and Nissan vehicles. It features rust-free black plastic construction and comes with a spring-loaded cover to keep out dust and water. This 7-way round connector is a female-end socket, specifically designed for the vehicle side of the connection. 7-way connects tail, brake, reverse, turn signals, brakes & auxiliary power Spring-loaded dust cover keeps connector clean when not in use | Curt Replacement 7-Way Round OEM Socket in Black