1、USB0 speed up to 5Gbps, ultra fast reading of data, can be connected to mouse, keyboard, camera, card reader, flash disk, etc. 2、There are 4 ports in this expansion dock, including 3 USB 0 ports and 1 USB 0 port, 4 in 1 dock, which is very convenient. 3、Mini and portable size make sit very convenient to use, you can put it in your computer bag and take it while on business. 4、Matte aluminum alloy body, with the characteristic of fine touch, it is also durable and sturdy, will not leave fingerprints after using. 5、With a wide range of application, this docking station is suitable for all Type C channel computers, you can use it for many purposes. 1 x Expansion Dock Item Type: Expansion DockMaterial: ABS, Aluminum AlloyModel: 33S40-RTKInterface: 1 x USB 3.0, 3 x USB 2.0(USB 3.0 by Indicator Port)USB 3.0 Transfer Rate: 5GbpsUSB 2.0 Transfer Rate: 480MbpsMain Control Chip: Chuangwei F 1.1Application: Support All Type C Channel Computers