Reliable Trailer Wiring for Safer TowingThe T-H Marine Trailer Wiring Adapter is designed to provide a secure reliable connection for towing a boat RV or utility trailer. Built with weather-resistant materials and a durable construction it is made to handle rain snow and road debris. It supports 12 volt DC power and is available in 7-way to 4-way or 7-way to 5-way configurations. 7-way round style wire 12 volt DC power Available in 7 to 4-way or 7 to 5-way configurations Weather-resistant construction Built for reliable towing connections