C2G/Cables to Go 29560 - USB 2.0 Hi-Speed Hub 7-Port Seven 480Mbps 4 pin USB 2.0 Ports Supports 1.5/12/480Mbps transfer rates Supports self-power mode and has built-in overcurrent protection Supports Windows 98SE/Me/2000/XP and Mac OS 8.6 or later Supports up to 127 devices