From the ManufacturerUSB-to-DVI Adapter - External USB Video Graphics Card for PC and MAC- 1920x1200 Connect a DVI display for an extended desktop multi-monitor USB solutionAdd an extra DVI port to your desktop or laptop computer in minutes. Our external USB-to-DVI solution allows you to enjoy multiple monitor efficiency without opening your computer case. The USB2DVIPRO2 USB external video card is ideal for a wide range of applications including web browsing, multi-media presentations and video playback. Top Buying Reasons: External USB-to-DVI video card solution - for use with monitors that support 1920x1200 resolutions Connect an extra DVI monitor in minutes Add workspace for a wide range of applications including web browsing, multi-media presentations and video playback Increase productivity with multiple monitors1. External USB-to-DVI video card solution - for use with monitors that support 1920x1200 resolutions Add extra DVI monitors to your desktop computer without having to open the computer case and risk to void manufacturer warranty The only way to quickly expand your desktop over several monitors for laptop users Cost effective solution to expand your computers display capabilities2. Connect an extra DVI monitor in minutes Insert the Driver CD or download the latest drivers from Startech.com, follow the on-screen instructions While your computer re-starts connect the DVI cable from your secondary monitor to the USB-to-DVI adapter Once windows has fully re-loaded plugin the USB video adapter and follow the on-screen instructions and enjoy your new desktop real estate3. Add workspace for a wide range of applications including web browsing, multi-media presentations and video playback Ideal for a wide range of applications including web browsing, multi-media presentations and video playback Leave your primary display for the performance demanding applications i.e 3D gaming or video editing Up to 5 displays can be added (5 USB2DVIPRO2 adapters needed) 4. Increase productivity with multiple monitors Multiple monitors have consistently proven to increase productivity and efficiency Run multiple applications on different screens Can be used on DVI monitors and/or DVI projectorsWindows Compatible PC or Mac Windows 8 (32/64bit), 7 (32/64bit), Vista(32/64), XP(32), 2000 (Aero 3D interface supported) Mac OS Mountain Lion (10.8), Lion (10.7) Snow Leopard (10.6), Leopard (10.5), Tiger (10.4) One available USB 2.0 Port Supported Resolutions Standard(16/32 bit): 1600x1200, 1280x1024, 800x600, 640x480 Widescreen(16/32 bit): 1920x1200, 1680x1050, 1440x900, 1366x768, 1024x768 Startech.com offers a full line of USB Display adapters. Use the below comparison grid to find the solution that works best for you:Performance Legend:Best: Video Playback, Fullscreen HD (720p, 1080i)Better: Internet browsing, Flash, YouTube FullscreenGood: Word processing, spreadsheets, simple internet browsing*Note: These Products are not intended to be used for 3D games or 1080p Video Playback USB-to-VGA External Video Adapters Maximum Resolution Performance Video Playback DisplayLink Mac OS Support USB pass-through Part Number 1920 x 1200 Best (USB 3.0) USB32VGAEH 2048x 1152 Best (USB 3.0) USB32VGAE 1920 x 1200 Better USB2VGAE3 1920 x 1200 Better USB2VGAPRO2 1680 x 1050 Good USB2VGAE2 USB-to-DVI External Video Adapters Maximum Resolution Performance Video Playback DisplayLink Mac OS Support DVI to VGA USB pass-through Part Number 1920 x 1200 Best (USB 3.0) USB32DVIEH 2048 x 1152 Best (USB 3.0) USB32DVIPRO 2048 x 1152 Best (USB 3.0) USB32HDDVII 1920 x 1200 Better USB2DVIE3 1920 x 1200 Better USB2DVIPRO2 « viewing 1680 x 1050 Good USB2DVIE2 USB to HDMI External Video Adapters Maximum Resolution Performance Video Playback DisplayLink Mac OS Support HDMI to DVI USB pass-through Part Number 1920 x 1200 / 1080 Best (USB 3.0) USB32HDEH 2048 x 1152 Best (USB 3.0) USB32HDDVII 1920 x 1200 / 1080 Best (USB 3.0) USB32HDE 1920 x 1080 Best USB2HDMI USB to