Charge your devices on the go with this 2 Port Car USB Charger featuring a 2.1-amp charger that provides enough power to charge nearly any USB device. Two universal USB ports allow you to simultaneously charge a full-size tablet and a smartphone at the same time, for instance. Compatible with both 12-volt and 24-volt systems. Chargers come packaged in a box in the color black or white, and 56 boxes come displayed in a Countertop Display.