Features: Classic design with round outlook. 4-Port USB output to support syncing or charging 4 devices at the same time. Compliant with USB 2.0 and Backward compatible with USB1.1. Compliant with USB Battery Charging specification revision 1.2(BC1.2). Connect to power adapter,It's a USB charging HUB,connect to computer,It's a USB 2.0 Data HUB. Automatic Handle the charging request when B.C compliant devices is detected. Charging current can draw up to 1.5A (CDP or DCP mode)each port. Support Apple ipad fast charging mode.