*. Add 4 USB 2.0 Hi-Speed port
*. Fully Complaint with USB 2.0 Specification
*. Supports up to 127 Hi-Speed devices Backwards Compatible with USB 1.1
*. Support data transfer data at 1.5/12/480 Mbps
*. Friendly & ergonomic design easily portable
*. Provide Up to 500mA per port sufficient for diverse devices
*. Plug & Play installation
*. Support OS: Windows Me12000/xplVistaiWin7/Mac 05 9.2 or above/Linux 2.4 or above