The USB32HDDVII USB 3.0 to HDMI and DVI-I Dual Head Adaptor turns an available USB 3.0 port into one DVI-I or VGA port (DVI to VGA Adaptor included) and one HDMI output, with support for high-definition 1080p and 1920x1200 video and 5.1 surround sound audio (from HDMI port only). The Adaptor delivers a convenient external video solution that makes it easy to add multi-monitor capability to a USB-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 USB video Adaptor functions as a convenient external graphics card that eliminates having to open the computer case for video card installation. The Adaptor delivers smooth, high-definition content to multiple displays and can be used to mirror your primary desktop, showing the same image on each display, or to extend your desktop onto a second or third monitor to double or triple your workspace and increase your productivity. The USB 3.0 HDMI and DVI-I Adaptor is backed by a StarTech.com 2-year warranty and includes free lifetime technical support. With two video output ports, the dual head design of the Adaptor offers a compact multi-monitor solution across both HDMI and DVI technology. SuperSpeed USB 3.0 to HDMI/DVI conversion delivers improved bandwidth compared to a USB 2.0 connection for smoother high-definition video content. The Adaptor is installed externally, through USB, which enables you to add graphics capability to your system without opening the case or voiding system warranties.Add a secondary HDMI and or DVI display and extend your desktop without taking apart your computer to install a new video card. Add multi-monitor capability to a single computer, to create engaging multimedia presentations Use the Adaptor to connect your PC to your HDMI-equipped HDTV for viewing family pictures and movies. Great for researchers and writers offering the ability to have reference material on one display and a working document copy on the other. Increase productivity by running multiple applications on different screens - check your email on one display and search the web on the other. View large or multiple spreadsheets across multiple displays. A compact, lightweight solution for traveling business associates using laptop PCs, enabling connection to a secondary display/projector.