Fangrui Product Details Big Expansion: Instantly Form One Of Your Computers Usb Ports Into Four, Quadruple Your Usb Input Capacity. Fully Plug And Play, Easy Setup, Hot Plugged, Hot Swappable. Ultra Compact: Lightweight And Safety-cover Design Enables The Multi Port Usb Hub To Be Mini And Portable, For Static Use And On-the-go.powerful Compatibility: Works With Usb 3.0, 2.0, Or 1.1 Host Controllers And Devices On Windows, Mac, And Linux/unix Computers At Usb 2.0 Speeds. Operating System: Win95 Osr2/98se/me/2000/xp, Linux2.4 And Mac Os8.5vasta And Above. Fer Rates Are Device And Usb Host Controller Dependent.the Product Is Suitable For U Disk, Card Reader, Usb Mouse, Usb Keyboard, Scanner, Digital Camera Digital Video Camera, Usb Sound Card, Hard Disk Box And Other Equipment. Support Hot Swap, Low Power Consumption, No Driver, Plug And Play. Easily Add Up To 4 Devices With The Usb 2.0 Hub. Particularly Great For Recent Notebooks That Provide A Limited Number Of Usb Ports. Achieve Full 480 Mbps On Each Port. Fully Backw