Plugable USB 3.0 Dual-Head Graphics (DVI / VGA plus HDMI) and Gigabit Ethernet Adapter (DL3900 chipset) for Windows 8.1, 8, 7, and XP
Compatible with Windows 8.1 and earlier with latest drivers. Fully backward compatible with USB 2.0 PCs.  Features two graphics ports: an HDMI port and a DVI-I port with VGA adapter for mirroring/extending your Windows desktop to external monitors (resolutions up to 2048x1152 supported) and a Gigabit Ethernet port (10/100 also supported).PerformanceFully uses the USB 3.0 SuperSpeed 5 Gbps bus. USB graphics is effective for application and web use, but not recommended for motion video or 3D gaming. Fully USB 2.0 compatible at 480Mbps speeds.Supported Operating SystemsWindows 8.1, 8, and 7 drivers automatically installed by Windows Update. For Windows Vista 64 and 32 bit, and XP SP2+ 32 bit, download DisplayLink's newest driver. Requires Intel/AMD/nVidia main GPU and driver with Windows Aero enabled. Not compatible with ARM-based Windows (MS Surface RT). Cannot be mixed with USB graphics devices using non-DisplayLink drivers (e.g. MCT or SMSC). USB graphics requires dual-core or 2Ghz or better CPU for best performance.Mac OS X not supported. No Linux drivers currently available.In the BoxUSB3-3900DHE; DVI-to-VGA adapter; quick-install guide; and drivers CD.Additional cables or adapters may be required for your setup.