18-18 HDMI Matrix Switch with applications & WEB GUI
8x2 HDMI Matrix combines the video Auto-switching with Audio Embedder, EDID, IR, and RS-232 serial control - XKSM-S1092
HDMI Matrix Switch 4x4 SGEYR 4 in 4 Out HDMI Switcher Splitter Audio Video Distributor Selector Box with IR Remot,RS232 Switches|HDMI Cables| - AliExpress