This HDMI True Matrix Switch can resolve the compliance issue between the old AV receiver and the new HDR source to make your AV equipment convenient and easier to use. The HDMI matrix switch can connect four 4K HDR signal sources to two HD displays or monitors, and can also extract the audio signal from the HDMI input with the SPDIF or toslink optical fiber the 3.5mm headphone stereo output. It is suitable for home cinema, villa, conference room, shopping mall, video wall, school and corporate training environments etc. Input support : computer, ps3, ps4, ps4 pro, xbox, xbox one, nintendo switch, hd player, fire tv, apple tv etc. Output support: projector, hdtv etc