Dual Port Weatherproof Power Socket USB Charger 2.1 Amps to SAE Direct connect to 12 VDC system (Input voltage is DC 12 - 24 Volts) Powers down to USB power requirements (DC 5V +/-0.25 2.1 amp max) Heavy Duty All Weather Design with Zippo Cap Design Cable to SAE connector is 36 inches long. Charges: Apple iPhone, Apple iPod, Blackberry, Garmin GPS, Droid, Samsung, HTC EVO, GoPro Hero, GoPro Hero3 and Vholdr helmet cams.