Startechcom dual port usb car charger 24w48a black charge two tablets simultaneously in your car ensure all your mobile devices are charged while youre commuting deliver the fastest possible power output required for each connected device up to a total of 24 watts 48 amps shared between both ports charge almost any mobile device that supports usb battery charging specification 12 this 2 port car charger lets you charge two mobile devices simultaneously while yoursquore drivin