1. A TYPE-C male connector: uplink port, the product is connected to the host side through this interface 2. A HDMI port: high-definition HDMI video output port, this interface supports up to 4K (3840 * 2160) 30HZ video output 2.three USB-A port (USB3.0): USB expansion downstream port, can be used to connect USB mobile devices, support for USB3.0 communication standards, while compatible with USB2.0 devices, the maximum rate of 5Gbps 3. Two TYPE-C female ports: TYPE-C1 is the power port, connect the charger with PD protocol to this port to supply power to the host side and the product. TYPE-C2 is a USB3.0 data interface, you can connect type-c mobile devices through this interface, the maximum rate of 5Gbps. 4. A RJ45 interface: can be inserted into the RJ45 crystal head connected to the access network, 1000\100\10Mbps adaptive 5. An SD card interface, a TF card interface: USB3.0 read/write rate, maximum support for 2TB capacity TF card; support for simultaneous reading