Simple appearance, frosted texture, metal shell made of frosted texture material, exquisite and compact, more comcompatible withtable feel.Hdmi-4k output small screen to large screen hdmi-4k is connected to large screen equipment such as TV, projector and display, which is convenient compatible with office and watching movies.USB3. 0 efficient file transfer with usb3 0. The transmission rate can reach 5Gbps. Files and pictures can be transmitted quickly on Monday and next year.The expansion can also charge the notebook, support 85W PD charging, and keep the mobile phone / tablet / laptop fully charged at all times.Expand the OTG function. I can also play this way. I can directly connect to the mobile phone / tablet to expand the OTG function.Name: Type-C Seven-in-One Smart Expansion DockPD charging power: 87W (MAX)USB specification: UsB3.0*1+2.0*2USB transfer rate: 5GbpsHDMI resolution: 4K*2K@30HzCard reader interface: support TF/SD simultaneous readingColour: silverMaterial: aluminum alloySize: 115mmx28mmx10mmPackage Contents:1 * Type-C adapterOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.