Fast and safe power fer: Only support USBC port charging. Make sure your laptop's USBC port supports the Power Delivery Protocol. Perfect connection: External U disk, mouse, keyboard, mobile hard disk, printer, etc. to solve the problem of single interface of notebook computer. Configure the default three modes: Custom screensaver static wallpaper and live wallpaper, quickly switch by touching up and down or sliding left and right. Small screen becomes big screen: 4K high-definition dual-screen display can connect projectors, , monitors and other large-screen devices to make your office more practical. Note: the product is labeled, which does not affect the use. STREAM DEC VISUAL DOCKING STATION: Custom touch screen keys DIY macro port expansion Color:As Shown Material:PC Package Contents: 1 * Docking station Only the above package content, other products are not included. Note: Light reflection 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.