We purchased the Zettaguard Upgraded 4K 60Hz 4x1 HDMI Switcher so our expert reviewer could thoroughly test and assess it. ... Doesn’t stand out from the competition. No integrated HDMI splitter.

HDMI 2.1 has been out for long enough that more and more people are making the choice to upgrade, ... Best HDMI 2.1 cable for 4K at 120Hz – LINKUP Ultra High-Speed HDMI 2.1.

Best 4-out: OREI UHDPRO-104 4K 1×4 HDMI Splitter Best 4-out Spread it Out. With solid specs across the board, the OREI UHDPRO-104 is a great step up if you need to feed three or four displays.

The HDMI Forum has officially released version 2.2 of the HDMI specification, boosting maximum bandwidth to 96Gbps.

For instance, even if you have mastered your 4K TV settings and want to play PS5 but the splitter only supports 1080p, you won't be able to game in 4K. The displays you use also matter.