Type: PCI to USB Card External USB Ports: 3x USB Ports Internal USB Ports: 1x USB Port Standard: USB 2.0 Data Transfer Rate: 480/12/1.5 Mbps Operating Systems Supported: Windows 98SE/ Me/ 2000/ XP Features: Using NEC (uPD720102) PCI to USB 2.0 Host Controller chip Compliant with Universal Serial Bus Specification Revision 2.0 Compliant with Open Host Controller Interface Specification for USB Rev 1.0a Compliant with Enhanced Host Controller Interface Specification for USB 32-bit 33 MHz Host Interface compliant to PCI Specification release 2.2 Supports PCI-Bus Power Management Interface Specification release 1.1 PCI bus-master access All downstream forcing ports can handle high-speed (480Mbps), full-speed (12Mbps), and low-speed (1.5Mbps) transaction Fully Plug & Play compliant Full support of real t...