Provided are devices and methods for transmitting two or more data streams through the same cable. An exemplary cable includes at least two sets of conductive points, each set capable of independently transmitting a separate data stream. The cable may be a USB 2.0 type cable, with two contacts assigned for transmitting one data stream, and two other contacts assigned for transmitting another data stream. In some embodiments, one data stream is an audio-video signal transmitted to an audio-video receiver.