The Railblaza E Series USB StarPort is a unique and versatile mount that combines a 12 volt DC 3 amp socket USB connector within the StarPort base allowing you to make connection to LED spotlights, cabin fans, depth sounders and many other devices. It is designed for use on a 12 VDC supply, rated at 3.0 Amps. The E series DC Port can also be mounted on the RAILBLAZA range of RailMounts allowing easy mounting and removal for LED floodlights. For charging only and not for data transfer. The E Series USB StarPort is splashproof however Railblaza do not recommend mounting in weather exposed areas.