This USB to VGA Multi Monitor External Video Adapter is specially designed to support higher resolutions than the USB2VGA (1600 x 1200 (32-bit), 1920 x 1200 (16-bit)), turning an available USB 2.0 port into a VGA port to provide high quality, dual display or multi-monitor capability that can be used in a variety of laptop or desktop applications.Capable of running up to five additional VGA displays from a single source simultaneously (using five Multi Monitor External Video Adapters), the external VGA video adapter connects to a host computer through a USB 2.0 port to act as an external VGA video card that can be used to extend or mirror the desktop shown on the existing display - without having to open the computer case to install an additional graphics card.ion software to make installation and setup quick and hassle-free.