It is with an EDID switch for helping to set a needed HDMI signal format, also it supports PoE to power the receiver (Connect power supply to the Transmitter unit only, each unit willpower up, as the Receiver unit is powered by the Transmitter unit through network cable). This HDMI Extender support IR passback for remote control source device easily. This product is perfect for AV transmission in applications of HD conference system, HD video shooting, HD multimedia education system, HD digital advertising and signage etc.