4K HD Video Wall Controller 2x2, 1x2, 2x1, 1x3, 3x1, 1x4, 4x1 4 Screen Splicing
Support 4K 60Hz Input, 4K 30Hz Output : Accepts HDMI 2.0 input up to 4K@60Hz and scales down to various output formats including 720p, 1080p, and 4K@30Hz. Also supports Toslink (5.1 CH) and 3.5mm (2.0 CH) audio extraction.