SWAGGERS 4 port Mini VGA Switch is used to display the content from 4 computers to 1 monitor/display, or to display the content from 1 computer to 4 monitors/displays,that's to say by using this switch, 4 monitors/displays can share 1 computer,or 4 computers can share 1 display/monitor. It is widely used for the securities market, education etc.It will save your time, money, device, energy etc, it is a good assistant of your life and work. Can display 4 VGA sources to 1 display/projector, High quality video, the maximum resolution is up to 1920x1440. Easily installation,no need any software. Using the front panel buttons, easily switch signal source, a mechanical switch, is in high reliability and durability.