This adapter by Delock with MHL interface complies with the connection of the latest smartphones and tablet-PCs. By using an optional VGA cable you can connect e.g. your smartphone to a monitor. Furthermore the adapter provides a short standard USB micro-B female cable. Connect the power supply of your smartphone or tablet-PC to the USB micro-B port, in order to play a video and to supply power to your mobile device at the same time. The stereo jack transfers the audio signals.