4K 2X2 HDMI Video Wall Controller 4 Channel TV Video Splicer 1X2 1X4 2X2 1X3 3X1
(1x2 1x3 1x4 2x1 3x1 4x1 2 3 4 TV Splicer Video Processor. 2)The 4K refers to the HDMI inputs signal only.It supports up to 4K 30Hz in and 1080P 60Hz out. Support under 2X2 mode,the first row images 180 degree rotate function;.