HIGH QUALITY SUPPORT: The Dual Head Adapter turns an available USB 3.0 port into one DVI-I/VGA port and one HDMI output, supporting 1080p and 1920x1200 video and 5.1 surround sound audio. MAXIMUM COMPATIBILITY: The adapter 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). EASY INSTALLATION: Leveraging the high-bandwidth (5 Gbps) SuperSpeed USB 3.0 interface, the USB video adapter functions as a convenient external graphics card making it easy to install the video card. OS COMPATIBILITY: This USB 3.0 to HDMI / DVI Adapter is compatible with Windows 2000, XP, Vista, 7, 8, 8.1, 10; macOS 10.6; 10.12, 10.14; 10.15; Ubuntu 14.04, 16.04, 18.04; Chrome OS v55+ THE STARTECH.COM ADVANTAGE: StarTech.com offers a 2-year warranty, free lifetime technical support on this adapter and has been the choice of IT professionals and businesses since 1995.