StarTech.com USB to HDMI Adaptors - StarTech.com USB32HDDVII, The USB32HDDVII USB 3.0 to HDMI and DVI-I Dual Head Adaptor from StarTech.com 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 1920 x 1200 video and 5.1 surround sound audio (from HDMI port only).The adaptor delivers a convenient external video solution so you can add multi-monitor capability to a USB enabled desktop or laptop computer (optimal performance from USB 3.0, backward, compatible with USB 2.0).Using 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 2-year warranty and includes free lifetime technical support. StarTech.com USB32HDDVII USB3.0 Dual Head Graphics Adapter - HDMI & DVI-I