The choice for a freshly charged battery, a neat and comfortable installation. The holder is equipped with an approved cig-plug cable for connection to the vehicle's 12 Volt socket. When you place the Tab S3 9.7 in the holder, it automatically connects to the charging unit. If you have a car with USB interface, you can disconnect the cig-plug from the holder's cable in order to get a USB-cable to connect directly to the USB connector in your vehicle. The holder is mounted onto a tilt swivel so you can adjust the angle and switch between portrait and landscape mode.