This is a Dynex Hi-Speed USB 2.0 4-Port PCI Card, Model 11329, designed to add high-speed USB connectivity to your computer. This PCI expansion card allows you to upgrade your system to USB 2.0, offering data transfer rates of up to 480 Mbps, which is 40 times faster than USB 1.1. It features a convenient 4-port configuration, with three external ports and one internal port, providing versatile connectivity for a wide range of devices.The Dynex USB 2.0 PCI Card is backward compatible with all USB 1.1 devices, ensuring broad compatibility with your existing peripherals such as printers, hard disk drives, digital cameras, CD-RW/DVD drives, removable drives, hubs, mice, joysticks, and CCD cameras. It supports Plug-and-Play installation and universal USB compatibility, with hot-swap capability allowing you to connect and disconnect devices without powering down your PC. The card is manufactured in Taiwan and includes a 10-year limited warranty.This listing includes the Dynex Hi-Speed USB 2.0 4-Port PCI Card, a Driver CD, and a User Manual (on CD) in its original factory-sealed blister packaging as pictured. It is compatible with Pentium processor and Windows-based computers with an available PCI 2.1 slot, supporting Windows 98 SE, 2000, Me, or XP. It also supports Mac OS 10 or higher (requiring a third-party USB 2.0 driver). The card complies with Hi-Speed USB 2.0 specification, OHCI, EHCI 1.0, FCC for home and office, and CE emissions.