Blue Sea Systems 12/24 VDC 2 USB Charger Socket, 2.1 Amp/5V, Black 12V or 24V Input, 5V - 2.1a total output Compatible with most mobile devices including Apple products Protective dust cap with tether keeps dust and spray from shortening the life of the Charger Conformal coated circuit board to stand up to the harsh marine environment 2a Supply fuse is not included