Features: 1.Multiport: HD Multimedia Interface, USB3.0, USB2.0, PD, 4 in 1 interface multifunctional docking station, to meet the daily various interface devices. 2.Support 4K 30Hz: HD Multimedia Interface supports 4K 30Hz resolution, 3D visual effects, enjoy theater quality shocking visual effects. 3.USB3.0: Multiport USB, say goodbye to repeated plugging and unplugging, USB3.0 high speed transmission, can be external to a variety of USB devices 4.Plug and Play: Laptop docking station plug and play, support all Type C type channel computers, support for OS X, for Windows, for Andriod and other operating systems. 5.Aluminum Alloy Shell: Aluminum alloy shell, faster heat dissipation, higher transmission efficiency, rugged and durable, repeated use is not easy to damage. specification:Item Type: 4 in 1 USB C Hub Case Material: Aluminum Alloy Interface: HD Multimedia Interface, USB3.0, USB2.0, PD Cable Length: Approx. 125mm / 4.9in (Including Plug) Case Color: Gray USB A : 3.0 Maximum 5Gbps (Normal 70m/s), 2.0 Maximum 480Mbps (Normal 20m/s) PD Version Power: 15W-87W HD Multimedia Interface Resolution: 4Kx2K(3840x2160)30hz Support System : For OS X, for Windows, for Andriod Applicable Computers: Support All Type C Computers PackageList:1 x 4in1USBCHub 1 xUser Manual NotePlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.