The USB keyboard and mouse can be easily connected to expand the UsB3 interface to solve the problem of fewer USB interfaces on your computerTightly fit, the interface is firm and not easy to loosen, and the intimate uninterrupted can only cooperate with each other tacitly.TF SD high-speed read and fast read card TF SD card makes data processing more efficient4K high-definition large-screen output, easily connect to large-screen TVs, and feel the visual feastPortable business display connects to a projector to make your office presentation more convenient.Computer expansion USB HUB for 3/4/5 generationsProduct Name: Docking StationUSB port: 5Transmission rate: up to 5GbpsUSB interface compatible: USB3.0/2.0/1.0SD/TF support: SD/SDHC/SDXC/Micro-SDHDMI: 4K 30HzCompatible system: Windows XP/7/8/10 Mac OS9X/10Voltage: 5V 9V 14.5V 20.3VInput interface: USB3.0 male, mini DP maleOutput: USB3.0*2 HDMI*1 SD/Micro*1Colour:SilverMaterial:Aluminum alloySize:91.5 x 32 x 11.5mm Package Contents:1 x USB HUBOnly 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.