... .2 HDbaseT technology used, can transmit A/V signals together with control signals(like RS232, IR).3 Single UTP cable, transmission ... , make you don't worry about the compatibility with the source or sink.5 With extra infrared receiver extension, expand the IR receiver ... ( { 'aImgSrc': aBigImageSrc } ); } )(); Hot!!! the most economical 4x4 HDMI matrix switcher with HDBaseT technology