Features: 1.The docking station has 4 external device interfaces, which can solve the inconvenience caused by the small number of computer interfaces. 2.The shell is made of aluminum alloy, which is corrosion resistant, strong, and not easily deformed after being impacted. 3.High definition multimedia interface supports 4K resolution video output, with a resolution of up to 3840 x 2160, which is clearer on the same screen. 4.The USB3.0 interface has a transmission rate of 5Gbps, which can be connected to devices such as mouse, keyboard and U disk. 5.The PD interface supports up to 100W high power, which can quickly and efficiently power the laptop.specification:Item Type: Docking Station Material: Aluminum alloy Cable Length: Approx. 95mm / 3.7in High Definition Multimedia Interface: Support 4K 30HZ (4K 60HZ if one is used alone) PD: Support up to 100W power USB: 3.0 How to Use: Plug and playPackageList:1 x Docking Station Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin