Orei 4x1 HDMI 2.0 switch switcher box selector 4 in 1 out HDMI audio extractor with optical SPDIF & analog audio out & remote control supports ARC, 4kx2k, 1080p. Input ports 4 HDMI female ports, 1 IR receive port and 1 RS232 port 3.5 mm (DB9 female to 3.5 mm serial cable sold separately) output ports