Lloytron a1585wh 8400ma ultimate 4 port power compact usb charger in white ultra fast charge up to 4 high powered usb devices simultaneously including 4 ipads etc use to charge multiple devices such as ereaders mobile phones tablets cameras mp3 players etc no need for multiple chargers one device charges everything 4 x 2100ma 5v output ports 42w max intelligent power consumption uses maximum power it needs to charge and turns off when fully charged power and individual port indicators abs v0