C2G/Cables to Go 29554 - USB 2.0 Hi-Speed Adapter Card 5-Port Upgrades desktop computers to the new USB 2.0 standard Designed to work with mice, keyboards, CD-R/RW's, hard drives, webcams, flash card readers and other USB enabled devices Four external and one internal port, Includes drivers for Microsoft Windows XP, 2000, Me, 98SE, 98 and Macintosh OS X Backwards compatible with USB 1.0 and 1.1 devices