Doinshop (TM) New Useful 1PC USB 3.0 to VGA Video Display External Cable Adapter for Win 7 8 USB 3.0 Graphic Adapter allows you to connect an extra monitor Connected monitor can be configured to either clone your primary screen, or extend the Windows desktop allowing visibility of more applications at the same time USB 3.0 Graphic Adapter driver used to control the extra screen uses very little computer resource and offers a vast array of screen resolutions and color depths Bus Powered-No external power supply needed Multi-Display Super Speed;Full HD