According to one embodiment, an electronic device includes a housing including a connector configured to connect to an external device, a transmitter and a receiver. The transmitter communicates with a sink device via the connector. The receiver communicates with a source device via the connector. If the connector is set as an output port for outputting a video signal, the transmitter is connected to the connector via first, second and third switching circuits. If the connector is set as an input port for inputting a video signal, the receiver is connected to the connector via the first, second and third switching circuits.