Feature: 1. MAIN FUNCTIONS: HD Multimedia Interface video wall controller is suitable for LCD TVs, super narrow LCD screens, projectors and more. You can use 1‑9 HD multimedia interface output splicing to select the mode: 1x1 1x2 1x3 1x4 1x5 2x2 2x3 2x4 3x2 3x3 4x2 3x1 4x1 5x1. 2. 4K RESOLUTION: 4K 3x3 video wall controller supports input video resolutions of 3840x2160P 25/30Hz, 1920x1080P 25/30/50/60Hz, output resolutions: 3840x2160P 30Hz (resolution for 4 screens), 1920x1080P 25/30/50/60Hz (resolution for each screen rate). 3. COMPATIBLE RANGE: Video wall processor is compatible with HD multimedia interface 1.4 and HDCP 1.4, and it also features a separate 3.5mm stereo sound port for connecting to external speakers, amplifiers, bar speakers, etc. Please set all screen resolutions to 1080p to ensure it works properly. 4. CONTROLS: 3x3 video wall controller is designed with IR remote control for easier and intuitive operation of the mosaic processor, which supports RS232. button press control, voice control (can control voice control can control mode settings, edge masking, cascade mode, reset, brightness, contrast settings). 5. EDGE MASKING: All display units have a certain physical bezel gap, the image will visually pull apart and feel unnatural without edge masking. After edge masking treatment, the image is distortion free, stretched, and more vivid. 6. ROTATION: Video wall controller does not support 90 degree or 180 degree rotation, if you want to use portrait mode, select computer as input, rotate the desktop to 90 degree rotation, portrait 1x3 setup 3x1 mode. 8GB local disk, support USB CIDEO source playback. Specification: Item Type: 3x3 Video Wall Controller Material: Aluminum Alloy Plug Voltage: 100-240V Remote Control Battery: AAAx2 (not included) Output Resolution: 3840x2160 Supported Sound Format: Stereo Input Resolution: Supports 1920x1080/60Hz Maximum Working Current: 2.3A Operating Temperature Range: -10-45℃ Stripe free resolution selection: Set the input resolution as follows: 1x2 3840x1080 at 30hz, 1x3 5760x1080 at 30hz, 1x4 3840x540 at 30hz, 1x5 3840x432 at 30hz, 2x1 1920x2160 at 30hz, 3x1 1920x3240 at 30hz, 4x1 1440x3240 at 30hz, 5x1 1152X3240 at 30hz, 2x2 and 3x3 3840x2160 at 30hz, 2x3 3840x1440 at 30hz, 2x4 3840x1080 at 30hz, 3x2 2560x2160at 30hz. Package List: 1 x 3x3 Video Wall Controller 1 x Power Adapter 1 x Power Cable 1 x Remote Control 1 x Instruction Manual