Allinone digital display controller for managing multiple screens from a single central device. Designed for continuous commercial use, it simplifies multiscreen signage for menu boards, promotions, and informational displays while offering reliable performance and flexible layout options. Key benefits Centralized control: Manage up to four displays wirelessly from one unit, reducing hardware clutter and simplifying content updates. Reliable continuous operation: LAN connectivity provides stable 24/7 network access for alwayson displays. Faster content delivery: Android 11 and a quadcore 2.0 GHz processor with 4 GB RAM and 32 GB storage power smooth playback and responsive management. Flexible presentation: Multiple layout templates and synchronous rotation make it easy to match screen orientation and arrangement to any space. Main features Four video output ports for multiscreen setups. USB and OTG ports for quick content transfer from mobile devices or storage drives. TF card slot for offline backups and local content playback. LAN port for stable network connection and remote control. RS232 serial port and physical device buttons for onsite control and integration with existing systems. Remote control via smartphone app and desktop software for scheduling, uploads, and realtime adjustments. Synchronized rotation of all four displays to 90, 180, or 270 degrees (rotation applies to all screens together). Layout options including 2x2, 1x3, 1x4 and other configurations to fit varying display arrays. Smart content management: schedule different playlists by date and time, run multiple programs concurrently, and easily upload or delete media using the app. Technical summary Operating system: Android 11 CPU: quadcore 2.0 GHz Memory: 4 GB RAM Storage: 32 GB internal Connectivity: four video outputs, USB/OTG, TF card slot, LAN port, RS232 serial port Control methods: smartphone app, desktop software, RS232, physical buttons Practical applications Restaurant menu boards: update prices and daily specials remotely, switch layouts for portrait or landscape screens, and schedule menus by time of day. Retail promotional displays: run synchronized campaigns across multiple screens, rotate content for vertical signage, and upload assets via USB or app. Corporate or public information displays: deliver scheduled announcements and wayfinding content with reliable 24/7 network operation. This digital signage controller provides a professional, easytomanage solution for multiscreen environments where reliable playback, centralized control, and flexible layouts are required.