Connects 4K @ 60Hz Displays to Macs/Windows Computers Enables connection of 4K (3840x 2160) @ 60Hz; or 1440p or 1880p @144Hz HDMI displays to a single Thunderbolt or USB port on your computer. Connect to a Thunderbolt or USB 3 or 4 Port Includes a USB-A female to USB-C male adapter. Expands Your Onscreen Work and Play Area: Open multiple applications on different displays, view your work on larger screens, browse the web, and watch . Supports Higher Refresh Rates: Also supports 1080P and other lower resolution displays at 60Hz. And Supports Audio. Perfect for M1 or M2 Mac Notebooks, For use with M1 MacBook Air and M1 MacBook . Also with other Mac and Windows Computers. Supports M1 , M1 Max, and M1 Ultra.