This video wall controller can simultaneously distribute 1 HDMI input to 4 HDMI outputs. It supports 8 Display Modes: 2x2, 1x2, 2x1, 1x3, 3x1, 1x4, 4x1 Video Wall Mode, and 1x4 Splitter Mode. Control options include manual, IR remote control, or RS232 control. Additionally, with the PC in portrait display setting, the TV/monitor can be placed at 90 degrees to use in 1x2, 1x3, and 1x4 modes.