E-BEST&reg; USB 3.0 to VGA Cable Video Graphic Card Display External Adapter for Windows VISTA / 7 / 8 / 8.1 (Blue) Supports Windows 8.1/8/7/Vista/XP (Mac is not supported). Aluminum shell,beautiful and strong,Durable.--Driver inside,easy to install. Supports 1 computer supports 6 PCS to work simultancously(6 adapters required). USB 3.0 Resolution: supports up to 1920*1080; USB 2.0 Resolution: supports up to 800x600.