HDMI Switchers

Keep in mind the difference, HDMI switchers say 5 HDMI cables in and 1 out to TV or PJ and splitters are the opposite say 3 HDMI in then 1 out to a display.
Some splitters allow long distance to 100m using HDMI over single Cat6 cable, others do HD (1080p) and others go to 4k@60Hz. Some can downscale 4k to 1080p automatically (like when using 4k Foxtel streaming).