1.Ultra-thin, one-plug connection design., suitable for desktop computers and laptops2.Plug and play, support hot swap, low consumption3. high performance electronic part to stable product operation4.1 Port upgrade to USB 3.0, speed up to 5 Gbp/s. Two downstream USB 2.0 ports speed up to 480 Mb/s, easy to , suitable for PC, laptop, and any USB enabled computers5.Small size, plug-in type, easy to carry and Transport Interface: USB3.0Transmission Rate: USB 2.0 port up to 480Mbps; USB 3.0 port up to 5GbpsOperating system: Win95/98SE/Me/2000/XP/7/8/10/vista, Linux, OS 8.5 and above. Supply: USB 5V/600maExternal Supply: 5V/1.5A-2AUsage Temperature: 0 -70 Temperature: 10 -90size:1.6*0.9*0.7cmMaterial:Metal + ABScolour:whitePackage Contents:1 * USB Hub1 * StrapOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.