The USB to DVI Graphics Adapter from HP provides a simple way to increase the number of monitors you can connect to your computer without installing a graphics card. It features a basic internal graphics processing engine that allows it to drive and additional display or monitor without putting a significant amount of extra strain on your system. It features a DVI-I output that supports both digital and analog displays, additionally through the DVI-I output it is possible to also connect analog VGA displays using the supplied DVI to VGA adapter. If one added display isn't enough you can combine additional Graphics Adapters to further extend the output capability of your machine.
Note: This device is not intended for 3D video games, high frame rate video, multi-screen video, or other applications that generally require a dedicated graphics card or sufficiently powerful integrated graphics. Video playback on one connected display is supported on many systems, however video playback on more than one display at a time is not assured. Additionally, use with systems that have multiple graphics cards installed is not assured.