The micro usb plus charger makes it easy to charge your smartphone or tablets the cable and charger offer 21 amp output for safe fast charging what39s more the home charger39s usb port is universal so can be used with other types of cables to charge smartphones tablets or anything that charges via usb wall charger with usb to micro usb cable charge any device which has a micro usb socket power provided by device 10w 5v21a