Keep your mobile devices charged and ready for use while on the road with the 5.8A 4-Port USB Passenger Extension Car Charger from C2G. With this charger you get one USB Type-A port on the DC adapter and three USB Type-A ports on the passenger extension, so you can charge up to four devices at once. This compact car charger is designed for portability and provides a power output of 5.8A. The 5.8A is broken down by 2.4A for the top port and a shared 2.4A between the middle and bottom ports on the passenger extension, while the DC adapter has a 1A port. This charger provides protection for your connected devices by measuring voltage and automatically adjusting power outputs. Having the ability to detect the accurate current output allows for protection against overloads, which can damage your mobile devices.