This 16X16 4K Seamless HDMI matrix switch has 3 display modes: Video wall controller, HDMI Matrix switcher, HDMI Splitter. Support Resolution up to 4K@30Hz Customised Video Wall Controller: Support multiple splicing modes: 4X4 4X3 5X3 3X3 8x2 etc. Support splicing one signal or several different signals at the same time for video wall display. Flexible custom splicing, high-definition display on the large screen. Output resolution is 1080p@60Hz in splicing mode.