USB to VGA adapter functions as an external graphics card for Windows and Mac computers. The perfect solution for turning desktop or laptop computer into a dual or multi-monitor environment, all through the simplicity and convenience of USB. The USB-VGA adapter delivers high quality video (up to 1920x1200) for a variety of applications and is capable of simultaneously running up to five additional displays from a single computer. 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. Ideal for researchers and writers offering the ability to have reference material on one display and a working document copy on the other.