Features: Multiple Splicing Modes Support multiple screen splicing modes, including 4x2, 4x1, 3x3, 3x2, 3x1, 2x4, 2x3, 2x2, 2x1, 1x2, 1x3, 1x4, with seamless mixing. Support 90° Screen Rotation The screen can be rotated 90° according to the requirements of the scene, just set it on the PC to rotate the image. Optimum Resolution The optimal resolution of the output image can be automatically calculated and transmitted to the display screen. Easy Operation Plug and play, easy to operate. Good Heat Dissipation Effect Adopt multi-hole design for better heat dissipation. Specification: Type: 3x3 TV wall controller Model: NK-BT88 Input resolution: Up to 3840*2160@60Hz(4K@60Hz) Output resolution: 1920*1080 Power supply: 12V/2A Item size: 34 * 12.5 * 4.5cm /13.39 * 4.92 * 1.77in Item weight: Approx. 859g /30.3oz Packing list: 1 * Video wall controller 1 * Power adapter 1 * Remote control 1 * User manual