MT-VIKI Video Wall Controller 2x2 Video Wall Processor 4K 30Hz Seamless HDMI Output Input 4 TV Connections Display and 8 Display Modes 1x2 1x3 1x4 2x2 4x1 3x1 3x1 2x1

MT-VIKI 4K Video Wall Controller 2x2, Support 4K 30Hz HDMI Output and Input for 4 TV Splicing Display & 8 Display Modes -1x2, 1x3, 1x4, 2x2, 4x1, 3x1, 2x1 (1-HDMI Input, 4-HDMI Output)

Video Wall Controller, 4K x 2K HD Seamless Splicing Professional Processor with HDMI+DVI+RS232 Input, 4 Way HDMI & SPDIF Output 180 Degree Rotate TV Wall Display 2x2, 1x2, 1x3, 1x4, 2x1, 3x1, 4x1

MT-ViKI HDMI Splitter 1 in 4 Out, 1x4 Power HDMI Splitter 4 Ports w/AC Adapter, 4Kx2K@30Hz 3D Full HD Distributor for PS4 Fire Stick HDTV