Blue Sea Systems Dual Usb Charger Socket 1016 Blue Sea USB charger socket 2 USB ports Compatible with most mobile devices Protective dust cap keeps dust and spray out Conformal coated circuit board to withstand the harsh marine environment 1 1/8 in. diameter hole cut fits the same mounting hole as a traditional 12 Volt outlet 2.1A DC (total) maximum output current 12V & 24V input voltage 9-32 Volt input voltage range 5V DC +/- 5% output voltage 15mA parasitic current draw Reverse polarity protection Short circuit protection Thermal overload protection 2 amp supply fuse is not included 0.20 lb