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. Features SuperSpeed USB 3.0 (5 Gbps) Interface, backward compatible with USB 2.0 Supports resolutions up to 1920x1080p (Full HD) and 2048x1152 Quick, easy installation Dual Head design supports both HDMI and DVI-I simultaneously (DVI to VGA adaptor included for VGA monitors) USB-powered - No external power adaptor required Choose between Mirrored, Extended or Primary display configurations Driver software supports display rotation Supports the Windows Aero interface Supports 5.1 channel surround sound audio (HDMI only) Supports the use of multiple USB32HDDVII adaptors on a single system (up to 3), for up to 6 additional monitors.