Charge three devices at the same time making sure you never run out of charge. The Multi Charging Cable is compatible with smartphones, tablets, wearables such as Galaxy Gear - in fact it can be used to recharge most devices that charge via a micro USB port. With the Multi Charging Cable, you don’t need a different cable to charge each of your devices. It's efficient, easy to use and keeps your USB slots free for other uses. Note: When all three cables are used together, the charging speed may be slower across your devices.