USB C Docking Station 14 IN 1: This docking station easily expand one USB C port-thunderbolt-adapter into 14 Ports: Dual HDMI, VGA, Gigabit Ethernet,3 USB 3.0 ports,2 USB 2.0 ports,USB C Data Transfer port, USB C Power Delivery Port(safety 85W), SD/Micro SD card readers and3.5mm Mic/audio. This usb c docking station dual monitor efficiently meets all your working and entertaining needs. Triple Display Docking Station: The laptop docking station support mirror and extend mode, provide crystal clear 3D visual and high quality video. Single using HDMI 1 can be up to 4K@60Hz(DP1.4 source),and single using HDMI 2 supports max up to 4K@30Hz. USB C to dual hdmi adapter connect two monitors to laptop will achieve 4K@30Hz and 1080P@60Hz(DP1.4). Display output will be 1080P@60Hz when dual monitors or triple display with VGA. ( NOTE: Mac OS system NOT support MST)