Flexible Expandability: A single USB 3.0 connection from a host PC to this dock with the built-in 38.1 inch type-c cable provides dual HDMI video outputs, wired Gigabit Ethernet, 85W PD charging port, power input port, SD/TF card slots and two USB 3.0 ports. Reducing neck and shoulder pain Multifunctional USB C Hub: 85W power delivery charging port allows you to charge your computer or other Type-C devices while transferring data. With the 1000M Ethernet port, 2 USB 3. 0 up to 5Gbps and SD/TF card slots at a fast speed up to 104MB/s Brilliant Performance with Dual Displays: Try out the latest 4K@60Hz ultra high-definition video with your projector, HDTV or monitor. Note: MacOS doesn’t support different displays between 2 external monitors. And dual 4K@60Hz is only available for laptops with DP1.4 Alt Mode and DSC enabled or the docking supports dual 1080P 60Hz only. If you are not sure, pls contact the pc manufacturer to confirm if the type-c port supports DP1.4 and DSC.