This is the HDMI extender via a single Cat5e/6/7 OFC cable that supports EDID handling capabilities. Use a single UTP OFC LAN cable (Cat6 or better cable) to replace the HDMI cable to achieve remote transmission. The UTP cable follows IEEE-568B standard. The LAN cable cannot be extended in the middle part Supports lossless compressed digital audio: Dolby TrueHD, DTS-HD Master Audio Must connect the display devices to the HDMI output. on the receiver pieces (RX) Transmission distance up to 50m below 1080p and OFC (oxygen-free copper). Data transfer speed 6.75 Gbps. If the long cable is used, this cable should be of high quality. The use of a long cable has high requirements