This adapter by Delock with MHL interface, a combination of USB and HDMI, complies with the interface of the latest Samsung Galaxy S III smartphone. By using an optional HDMI cable you can connect e.g. your smartphone to a TV with HD support and watch pictures or videos in HD quality. Furthermore the adapter provides a standard USB micro-B female port on the backside. Connect the power supply of your smartphone to the USB micro-B port, in order to play a video and to supply power to your mobile device at the same time.