Kramer VS-66HN 6 x 6 HDMI Matrix Switcher VS-66HN B&H Photo Video
VuMATRIX-6X6VWKIT - 6x6 TURN-KEY 4K VIDEO-WALL SYSTEM with 360 Degrees Artistic Rotation 1x HDMI INPUT Box plus 36X HDMI Display Receive|PVI
Amazon.com: OREI 6X4 4K HDMI Matrix Switcher Extender - HDBaseT UltraHD 4K @ 60Hz 4:4:4 Over Single CAT5e/6/7 Cable with HDR, CEC & IR Control, RS-232 - Up to 132 Ft 2
6x6 HDMI Matrix Switcher w/Scaling, Separate Audio, Apps, Video Wall & 100ms Switching, WolfPack