USB C to Dual HD display adapter: This adapter can mirror or expand high-resolution graphics images to dual 4K resolution of HDTV, monitors or projectors.The laptop screen can be extended to two monitors.Boost your work productivity and efficiency. Allows you to do different project on differnet monitors. for MacOS, , Linux, Android system with USB-C port which supports "DisplayPort Alternate Mode" (not all USB-C ports/systems support Alternate Mode functionality). This adapter allows your computer to extend dual HD screens at the same time. When only one HD port is used, the resolution can be up to 4K@60HZ(3840*2160@60Hz), and when two HD ports are used simultaneously, the resolution can be up to 4K@30HZ(3840*2160@30Hz) . USB C HD Adapter offers an easy setup by natively working on device that supports DP Alt Mode over USB Type-C, plug and play, No need any driver. "DisplayPort Alternate Mode" (not all USB-C ports/systems support Alternate Mode functionality). for Pro 2016-2020, Air 2018-2020, Pad Pro 2018 2020, M1, M2. ★Note: OS Support Display (A-A-A or A-B-B) . for OS Support Display MST (A-B-C / A-B-B /A-A-A) (Important: ONLY when your devices support 4K resolution, the video output be 4K,please make sure to use a HD Standard 2.0 cable or better.) Please note: The host Type-C port from your device must support DisplayPort Alt Mode. Android and OS : A-A+A OS :A-A+-B+B :A-A+-B+-B+C How to set Dual display on ? "Setting" → "Display" → click the "mirror display" box to switch to Extend mode → then you can drag a window of website/movie to the side of your desktop screen until it disappears on your desktop screen and shows up on the external monitor screen. ( Important Note: On devices, CAN NOT extend two different screen, ONLY Mirror Screens due to OS limitation) How to connect Extend Mode for OS? (If the display 3 is not displayed, please to manually select the display→click to apply to confirm can set OK) Color: As Shown Material: Aluminum Alloy Package Contents: 1*Docking Station Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.