Keep multiple devices powered while on-the-go with this 4 way 12-volt adapter. Equipped with two (2) 12-volt power ports and 2 USB ports you can charge 4 devices at once. Compatible with iPad iPod smart phones GPS units and more. This 4-way 12-Volt adapter turns one 12-Volt socket into a 4-way multi-purpose adapter. The combined power usage of all four outlets must not exceed 10 AMPS. It has one 1 AMP USB port and one 2.1 AMP USB port with total power of 150 Watts. Input and output voltage is 12-volts DC. Dual USB output is 5-volts. No more worries about your laptop or phone powering down while in between sales destinations or having a phone go dead while on a long haul. This single 12 volt accessory performs double duty when it comes to power sourcing. You can store this small and tidy trucking accessory in the cab of a truck or other vehicle. Comes in handy when needed. RoadPro has everything you need to be your most comfortable and your most productive out on the road - no matter what you do.