This is a USB dual charging port with 5 volt output and 3.1 amps. This charger rocker fits into a 37mm x 22mm hole. Which is about the stock size hole on most UTV and the switch plates we sell. The face of the rocker accepts up to two USB cords at one time. Simple 2 wire hook up. Dust cover for ports attached.This charger provides a nice clean look on your dash, while charging your phone, Ipod, tablet.