ADS USB 2.0 Hard Drive Kit Converts hard disk drives to External USB 2.0 Drives Support for IDE Hard disk drives (UDMA 33/66, ATA-100/133 or AT-6) Support for Windows 98, 98SE, Me, 2000, and XP - Windows 2000 or XP with USB 2.0 drivers from Microsoft required for USB 2.0 speeds. Support for MAC OS 9.x and OS X (all versions) Intech's SPEEDTOOLS UTILITIES for MAC OS 9.X and OS X