You need kown - 1. To use this usb c dock, the host or device USB-C port must support DisplayPort Alt Mode. 2. About MST function, Mirror/ Extend Mode only supported by Windows. Mac OS DOSE NOT support extend 2 different screens, displays are mirror mode which is limited by Mac itself. 3. Buy worry-free, 2 year warranty, friendly customer service and email support. Other Ports - Gigabit Ethernet port up to 1000Mbps ensures a more stable and faster wired network connection. 4 USB 3.0 ports sync data speeds up to 5Gbps, one of USB port has BC1.2 fast charging. Built in SD/Micro SD slots for easy access to files from universal SD and Micro SD Memory Card up to 2TB, support 2 cards reading simultaneously. Support audio. USB Power Delivery - This USB Dock has a 100W Power adapter, the upstream USB-C port connects to your laptop, providing up to 65W of safe and fast charging for the host laptop. Note: Please make sure that the USB-C port on your device supports Power Delivery protocol. Triple Monitors & 4k Display - Dual DisplayPort and one HDMI ports for easy connection to three monitors resolutions up to 1920x1080 @60Hz, Dual monitors resolutions up to 2K @60Hz. Under DP1.3/DP1.4 source, single HDMI/DP port video output up to 4K @60Hz. All in one USB C dock - This USB C laptop Docking Station offers dual Displayport and HDMI video outputs, wired Gigabit Ethernet, 3.5mm audio jack, four USB 3.0 ports, SD/TF card reader, DC 20V power port, upstream USB-C port (65W PD 3.0 charging). No need drivers or software, plug and play, works with MacBook, iMac, Dell, HP, Lenovo, Surface Book2, Huawei, Samsung and more other Type C / thunderbolt 3 4 laptops.