Item Type: Docking Station Material: Metal Interface: 2 x High Definition Multimedia Interface, 1 x USB 3.0, 1 x PD USB 3.0 Transfer Rate: 5Gbps High Definition Multimedia Interface: 4K High Definition Multimedia Interface, High Definition Video Resolution Up to 4k at 30Hz (3840x2160 at 30Hz) Charging: Support 60W PD Fast Charging Compatible: For OS X Series, for Chromebook, Laptops with USB C Output, Support for Switch Color: Dark Gray 1、4 in 1 Adapter: The adapter has a USB C interface port device connected to two High Definition Multimedia Interface ports, one USB 3.0 port and one PD port, the four ports can work at the same time 2、4K Resolution: Mirror or expand your screen and stream 4K UHD (4K at 30HZ) or 3D video directly to HDTV, monitor or projector. Internal PCB anti interference design. Plug and play 3、5 Gbps Transmission: High speed USB 3.0 transmission rate up to 5 Gbps, 60W charging, portable and aluminum design can provide better heat dissipation 4、Widely Compatible: Compatible for OS X Series, for Chromebook, Laptops with USB C output, Support for Switch. Compatible with USB C devices for OS X, for Win, for Android, and for Linux systems 5、Support System: Support for 2015?2020 for OS X / for OS X Pro, for iOS tablet Pro 2018, for OS X 2018, for Surface Book, for Chromebook Pixel, for Dell XPS 12/13/15, for Spectre X2 / X360, for Spin7, for S8 / S9 6、Important Note: The extended mode supports the for Win system to stream different images in three monitors. Due to the limitations of for OS X, the images on the two screens for OX S devices will be displayed 1 x Docking Station