Product overview A compact 2X2 TV wall controller that splits one HD multimedia interface input into four synchronized outputs. It divides a single definition image into four blocks for display across four screens, enabling flexible video wall layouts while maintaining stable signal transmission and easy control. Key benefits Simple multiscreen setup: Split one HD source into four displays without complex wiring or software. Plug and play operation reduces installation time. Reliable signal and image quality: Gold plated connectors and a metal housing reduce interference and transmission loss, preserving image integrity. Flexible layout options: Multiple splicing modes support a variety of display arrangements to match space and content requirements. Compact, durable design: Iron chassis with side cooling holes provides heat dissipation and corrosion resistance for continuous operation. What it does and why you need it Converts a single HD multimedia interface input into four HD multimedia interface outputs for video walls, showrooms, retail windows, and presentations. Accepts up to 4K 60Hz input and outputs at full 1920 x 1080P 60Hz to ensure smooth, definition playback on standard 1080P displays. Includes RS232 control and SPDIF audio output for integration with control systems and external audio equipment. Standout features Large screen stitching: Supports splitting one complete HD image into four separate output blocks for 2X2 video walls. Multiple splicing methods: Configurable modes include 2X1, 3X1, 4X1, 1X2, 1X3, 1X4, and 2X2 to suit different display arrangements. definition compatibility: HD multimedia interface 2.0 input accepts 4K 60Hz and below; outputs 1920 x 1080P at 60Hz. Durable construction: Iron body, gold plated connectors, and side cooling vents for improved thermal performance and reduced interference. Control options: Remote control for quick layout changes and image rotation; RS232 for integration with centralized control systems. Audio output: SPDIF provides digital audio extraction for external sound systems. Specifications Item type: 2X2 TV wall controller Material: Iron Color: Black Power input: 100240V (adapter) Power supply output: 12V (device power) HD multimedia interface version: 2.0 Input resolution: Up to 4K 60Hz Output resolution: 1920 x 1080P at 60Hz Remote control battery: 2 x AAA batteries not included Basic setup steps 1. Connect the HD multimedia interface input on the controller to your source device using an HD multimedia interface cable. 2. Connect the four HD multimedia interface outputs to each display unit. 3. Attach the 12V power adapter and plug into a 100240V AC outlet, then power on the controller and displays. 4. Use the included remote control or RS232 commands to select the desired splicing mode and adjust image rotation if needed. Verify alignment and orientation on each screen. Typical use scenarios Retail window or store displays: Create a single large image across multiple screens to highlight products and promotions. Corporate lobbies and showrooms: Display resolution presentations or promotional video across four panels for a professional look. Small control rooms and event booths: Provide flexible screen layouts for monitoring, demonstrations, and visitor engagement. Compatibility and practical notes Designed for use with standard HD multimedia interface equipped displays such as rear projection units and LCD TVs. suited for setups where output displays are 1920 x 1080P at 60Hz; source signals up to 4K 60Hz are supported but outputs remain at 1080P. Ensure remote control batteries are installed and RS232 wiring is configured if centralized control is required. This 2X2 TV wall controller offers a straightforward, durable solution to build and manage small video walls with multiple layout options, reliable signal transmission, and easy control.