Connect a VGA display for a high-resolution extended desktop multi-monitor USB solution. The USB2VGAPRO Professional USB VGA External Dual or Multi Monitor Video Adapter is the perfect solution for turning your workstation into a dual- or multi-monitor environment using your USB ports - providing high-quality, dual-display or multi-monitor capability for a variety of laptop or desktop applications. With improved performance compared to our USB2VGA and USB2VGA2, this USB VGA display adapter is capable of running up to five additional displays from one computer simultaneously (using four USB2VGAPRO External Multi Monitor Video Adapters). The adapter connects to a host computer through a USB 2.0 port, acting as an external VGA video card to either extend or mirror the desktop shown on the existing display - without having to open the computer case. USB2VGAPRO offers support for Microsoft Windows® (including Aero themes) and Mac OS X, and with support for resolutions up to 1920x1200 this device is ideal for larger displays / monitors. Backed by a StarTech.com two-year warranty and free lifetime technical support.