Samsung USB to 21pin Data Cable

The 21-pin connector plugs directly into your charging port for fast syncing and charging. In order to maximize the efficiency of data transmission of smartphones and PC's that support a USB 3.0 interface, you just use the USB Data Cable. There are two ways of charging your Smartphone with the USB 3.0 Data Cable. One is using a desktop PC/laptop, and the other one is using a Samsung wall charger or car charger head unit.