2x2 video wall controller splits a single high-definition video source across four separate screens.Core Function: Takes one HDMI or DVI input and distributes it into four synchronized HDMI output blocks.Supported Modes: Offers multiple screen-splicing configurations like 2x2, 1x2, 2x1, and 1x4, often including a 180-degree image flip for top-row displays.Control Options: Managed via front panel buttons, an included IR remote control, or an RS232 serial port interface