... button and one LED) B: Relay Interface On the board, there is one Relay port, if client require this, ... there is one channel Relay control output (On the board, there is a Relay) C: Wireless interface, this ... WIFI. G:USB2.0 H: USB3.0 in the board. I: One bit GPIO,, J:SD Card Output ... contact us We can do many kinds standalone linux internet media player,HD Media player,advertisement media player We ...