Interfaces of USB C Hub Type-C Docking Station are in the following: 1 x Type-C charging port - Support PD charging for laptop(Not Data transfer), Max.87W power pass through. 1 x HDMI - Support 4K resolution up to 3840x2160 @ 30Hz. 1 x USB A 3.0 port - Up to 5Gb/s data speed (provide only 0.9A/5V power, not recommended for smartphone/tablet charging). 1 x USB A 2.0 port - Up to 480Mb/s data speed. The USB3.0 interface is similar to the wireless Bluetooth frequency, which may cause the instability of the Bluetooth mouse and keyboard. It is recommended that the Bluetooth mouse and keyboard use the USB2.0 interface that comes with the laptop. Please Note 1.For a stable connection, Connect power to the hub when devices connected to this hub exceed total current of 900mA maximum ,otherwise, output current may become unstable or disconnected. 2.Not intended for use with gaming devices and high-power devices (external hard drives/iPad pro 2018 /Mojave / Switch /Apple USB Super Drive etc.) or adding an extra extension cable for the hub as it can cause slow transmission, HDMI port not being recognized, or other connective issues. 3.Be sure that your laptop's Type C ort support DP Altmode( Video Ouput), otherwise hdmi port of USB-C dockign station won't work. 4.HDMI and VGA ports can be used simultaneously,but the maximum resolution of both sides is 1080P. 5.The SD card slot and the TF card slot can not be used on the hub simultaneous. 6.The USB Ports are intended for data trnasfer,don't recommend for charging iPad, tablets or smart phones via usb.