Gefen’s GTB-UHD-HBT is a tiny 4K Ultra HD HDBaseT Extender using one Cat-5 with RS-232, 2-way IR, and Bi-Directional POL. It carries HDMI up to 495ft. at 1080p and up to 330ft. at 4K. Stereo and Multichannel digital audio including 7.1 channels of LPCM can be transmitted along and there is capability for Dolby TrueHD and DTS-HD Master Audio. Either unit may be externally powered and send power to the other on HDBaseT.