Ranz USB 2.0 Hub 4 Ports at RS.129/- MRP .399/- free shipping http://www.kifayati.com/ranz-usb-2-0-hub-4-ports.html DETAIL Four ports with USB female connectors Connects upto 2 devices without a power adapter. Plug and Play Fully compliant with the Universal Serial Bus USB 2.0 high-speed transfer rate up to 480 Mbits/sec Support 4 bus powered downstream ports Single chip integrated USB Hub Controller with emabeded proprietory processor Support four bus-powered USB Hub Controller with embedded proprietary processor Built-in 3.3 voltage regulator allows single +5V operating voltage, resulting in reduced overall system cost Fully compliant with the Universal Serial Bus specification version 1.1 / 2.0 Single chip integrated USB hub controller with embedded proprietary processor. Supports four bus-powered USB hub controller with embedded proprietary. Processor Supports four bus-powered downstream ports. Built-in 3.3 voltage regulator allows single+5V operating voltage, resulting In reduced overall system cost. Provides up to 500mAh current to each port which is sufficient for diverse Devices. Hot plug and play. Designed with super streamline and mini size with color LED show (particular Models) Adds 4 USB 2.0 Hi-Speed ports, fully compliant with USB2.0 specifications Backwards compatible with USB1.1 Support data transfer rate at 1.5/12/480Mbps Individual port over-current protection Friendly& ergonomic design, easily portable Provide up to 500mA per port sufficient for diverse devices Hi-Speed upstream port with mini USB 5P jack Support Windows 98, 2000,ME, XP, Win7, Win8, Mac OS 8.6 or above 6 Months Warranty