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1.Input Interface: 4 x VGA Female ports, Output Interface: 1 x VGA Female port

2.Bi Directional - switch between four computers to a single monitor OR switch between four monitors from a single computer

3.500Mhz High bandwidth provides HD images and smooth video (widescreen 1920x1440 supported)

4.DDC2 function to automatically adjust screen resolution when using different monitors

5.Metal Enclosure with rubber feet to protect your desk or tabletop

6.button switch for convenient switch

7.Plug and play

8.Compact and lightweight size for convenient carrying, ideal for presentations, classrooms, control center, remote monitoring & training facilities.

Important Note: Some PCs may require VGA resolution setting; if so, please set the optimal resolution of your monitor.