USB 2.0 Simple Touch Hard Drive Kit Converts hard disk drives to External USB 2.0 drives (Works with USB 1.1) Supports all 3.5" IDE Hard Drives (UDMA 33/66, ATA-100/133 or AT-6) Support for Windows 98, 98SE, ME, 2000, XP, MAC OS 9.x and OS X (all versions) SimpleTouch BackUp Button : Backup any file or folder with One Button and schedule automatic backups Plug & Play and Hot Swappable