BearsFire USB 3.0 Hub Splitter Super Speed 5Gbps 4 Port USB Ultra Slim Data Hub with LED Indication, Bus Powered Hub Support Input/Output Device Compatible with Windows, Mac Os X, and Linux Sleek compact design makes it an excellent choice for use with laptops, but it will perform equally well for desktop users. Compatible with all computers. Plastic housing,Pino black color,4 usb3.0 expanding port transfer data Speedly and non-interfering each other. Adds 4 unpowered USB 3.0 ports to your computer - Up to 5Gbps data,Backward compatible with USB 2.0 / 1.1 transfer rate. Support USB 3.0 super speed (5Gbps) transmission, downward compatible USB 2.0/1.1. Drive free, supports Support: MS windows2000/xp/vista/7/8 Mac OS/ linux. Independent supply provides power supply to connecte devices.