Description Plugs into USCAR socket to provide 7-way RV blade trailer wiring connectorSimple plug-and-play design eliminates the need for cutting or splicing7-way connects tail, brake, reverse, turn signals, brakes and auxiliary powerSpring-loaded dust cover keeps connector clean when not in use7-way connects tail, brake, reverse, turn signals, brakes and auxiliary powerSpring-loaded dust cover keeps connector clean when not in use