The USB32DVIPRO USB 3.0 to DVI Adaptor turns an available USB 3.0 port into a DVI output, with high resolution 2048x1152 video support - a convenient external video solution that makes it easy to add multi-monitor capability to a USB 3.0-enabled desktop or laptop computer (optimal performance from USB 3.0, backward compatible with USB 2.0). Leveraging the high-bandwidth (5 Gbps) SuperSpeed USB 3.0 interface, the Adaptor functions as an external graphics card to deliver smooth, high-resolution content to your DVI or VGA-capable display (DVI to VGA Adaptor included). The Adaptor can be used to mirror your primary desktop, showing the same image on each display, or to extend your desktop to double your workspace and increase your productivity. Backed by a StarTech.com 2-year warranty and free lifetime technical support. SuperSpeed USB 3.0 to DVI conversion provides added bandwidth, for smooth high-resolution video content External USB-Powered device provides the simplest way to add additional graphics capability to your system, without opening the case or voiding system warranties.