Does Not Support MST on Mac OS: MacOS does not support MST (Multi-Stream Transport), so only mirror mode is available and dual extended displays are not supported due to system limitations. And you need to confirm that the C port of the host device supports video output or DP Alt mode, if this is the case, you can usually see the DP logo next to the port 4K USB C to Dual HDTV Adapter: Easily connect the docking station daul HDTV to enjoy ultra HD audio and videosingle display supports up to 4K@30Hz. The dual HDTV ports support mirror and extended mode, delivering sharp 3D visuals and high-quality video for multitasking. Ideal for boosting productivity in home office setups. (Note: MAC OS can Only Extend One Monitor for Extend mode) Stable 1000Mbps Ethernet Port: USB C to HDTV dock is a great savior for devices that do not have a network port or cannot connect to a wired network. Gigabit USB-C to Ethernet adapter up to 1000Mbps RJ45 network speed, give full play to your network pe