8 devices receive at same time: One computer host or other devices HD multimedia interface output sound and video signals, eight display screens, projectors and other interface devices receive and display simultaneously. Full metal frosted shell: The shell adopts metal frosted design for stable work, fast heat dissipation, anti-interference and pressure resistance. Real time equipment status monitoring: Performance indicators on the side allow monitoring of equipment running status with switch buttons. Upgraded core technology: Supports long distance transmission of 15 meters at front and back end, reduces electromagnetic interference and improves signal transmission rate. Port expansion by stacking: HD multimedia interface output ports can be increased by stacking to connect more devices. Application scenarios: Suitable for video conferences, conference speeches, home theater, office and teaching occasions. Condition: New Origin: China