Feature: 1. Immersive 9 Display: Create clear visual displays with our 3x3 HD Multimedia Interface video wall controller, featuring 1 HD Multimedia Interface input and 9 HD Multimedia Interface outputs. Split full HD Multimedia Interface HD image signals into 9 blocks for multiple display units, forming a large mobile image screen composed of 9 HD Multimedia Interface HD video display units. 2. Clear 4K Resolution: Supports 4K at 30Hz input for amazing visual effects at 3840 x 2160 at 30Hz. Enjoy unparalleled image quality with vibrant colors, lifelike details, and premium sound immersion through the stereo sound port on the video wall processor. Enhance your viewing experience with external speakers or sound devices. 3. 16 Splicing Modes: Select from 16 flexible split screen modes including 1x1, 1x2, 1x3, 1x4, 2x1, 2x2, 2x3, 2x4, 3x1, 3x2, 3x3, 4x1, 4x2 for single machine support, and 3x4, 4x3, 4x4 for dual machine (2 machines cascaded) support. Set your displays for different applications with easy mode switching via remote control or device buttons. 4. Outstanding Viewing Experience: Designed with 180 degree rotation and edge masking to maximize screen space, reduce border width, and minimize image distortion. Rotate inverted TV images to correctly display on screens for a seamless viewing experience. Recommend frameless displays for optimal viewing angles. 5. Easy Installation and Operating: Plug and play video wall controller splitter with strong compatibility for most HD Multimedia Interface devices. Compatible with LCD TVs, projectors, DLP, PDP, etc. Specification: Item Type: 3x3 HD Multimedia Interface Video Wall Controller Material: Metal, Iron Color: Black Remote Control Battery Type: 2 x AAA Batteries (Not Included) Voltage: 12V Input Resolution: 4K (3840 x 2160) 30Hz and below Output Resolution: 4K (3840 x 2160) 30Hz and below HD Multimedia Interface Outputs: 9 Way Cascade: Support 2 Units Cascade 16 Splicing Modes: Single Machine Support: 1x1, 1x2, 1x3, 1x4, 2x1, 2x2, 2x3, 2x4, 3x1, 3x2, 3x3, 4x1, 4x2 Dual Machine (2 Units Cascade) Support: 3x4, 4x3, 4x4. Package List: 1 x Video Wall Controller1 x Remote Control1 x Adapter1 x User Manual