This 4k hdmi splitter lets you connect your hdmi video source to four hdmi displays with support for ultra hd resolutions and hdr high dynamic range as well as 71 surround sound audio unlike many 4k splitters that only support a 30hz refresh rate this splitter works with 4k hdmi 20 displays with output resolutions of up to 3840 x 2160p at 60hz not all 4k splitters are created equal while some hdmi 14 splitters can achieve 4k resolutions theyll only work at a 30hz refresh rate