Tendak USB 3.0/2.0 to HDMI Graphics Card Converter Cable Adapter for Multiple Displays Up to 2560x1440(50Hz)/ 2048x1152(60Hz)/ 1920x1080(60Hz) Supporting Windows 8.1/ 8/ 7/ Vista/ XP Mac OS X 10.10/ 10.9/ 10.8/ 10.7/ 10.6 Tendak USB to HDMI Display adapter enables you to connect additional display devices (CRT/LCD monitor,projector) to your desktop or notebook PC Leveraging the high-bandwidth (5 Gbps) SuperSpeed USB 3.0 interface, this USB 3.0 to HDMI adapter functions as an external graphics card to deliver smooth, high-definition content to your HDTV or monitors at resolution up to 2560x1440@50Hz/2048x1152@60Hz Supports display modes:the main screen display mode,extended desktop mode,image display mode Supports Windows 10/8.1/8/7/Vista/XP and Mac OSX 10.10/10.9/10.8/10.7/10.6 Supports multiple monitors display with multiple adapters. Audio Support on Macs Requires v10.8.5 Upgrade