- Bus Type: 32 Bit PCI - Speed: Up to 480Mbit/sec (high) - I/O Address: "Plug & Play" - IRQ Selection: "Plug & Play" - Connectors: 4 x Type A USB Female (external) + 1 x Type A USB Female (internal shared) - Connect up to 127 devices - EHCI based 480Mbit/sec USB 2.0 Hi-Speed compliant - OHCI based 12Mbit/sec USB 1.1 compliant - Connects USB 2.0 or USB 1.1 devices to your computer - Requires available PCI slot - Software Compatibility: Windows 98/ME/2000/XP/Vista and Mac OS 10