Hopkins 47900 - Endurance 48" 5-Wire Flat Vehicle Side ConnectorWith superior ergonomics and a robust design nothing says long lasting like Endurance. This vehicle side 5 flat connector provides the basic lighting functions from the vehicle to power the trailer while adding the reverse function. This makes it the choice connector for those who have a surge brake equipped trailer or want to set up reverse lights on the back of their trailer. 5 flat connectors are typically found on marine type trailers. Endurance