The PC with USB 3.0 interface can achieve up to 1920 x 1200 resolution through this VGA cable; The PC with USB 2.0 interface can achieve 800 x 600 resolution; Supports all CRT LCD displays projectors LCD TVs and other video devices; Supports 4 display modes: extended sync main & secondary screen switch rotation; Dosen't support MAC system tablet PC and Windows XP system; Since the XP system doesn't support dual graphics so you need to install a PCI expansion card with USB 3.0 interface for XP; Supports WIN 7/8/Vista; Compatible with USB 3.0 & 2.0; Supports 6 display windows; Doesn't need an extra power supply; Supports dual-screen display; CPU: Intel / AMD single core 1.5GHz or higher; RAM: 512MB or higher; Easy to install and use.