3x3 4K HDMI DVI Video Wall Controller Processor 1x3 1x4 Multi Screen Splicer
(Multiple display modes: Supports 1x1, 1x2, 1x3, 1x4, 2x1, 2x2, 2x3, 2x4, 3x1, 3x2, 3x3, 4x1, 4x2 modes for you to choose from. 1) 4K only refers to HDMI input signals. It supports up to 4K 30Hz input and 1080P 60Hz output.