SimpleTech SIMPLEDRIVE DELUXE 40GB (STI-USB2F/40) 40GB USB2.0 Hot swappable, Up to 15 MB PC or Mac compatible, desktop or FireWire/USB 2.0 interface, coupled with a 2 MB buffer delivers data transfer speeds up to 15 MB/sec Compatible with Mac OS 8.6 or higher; Windows 98 SE, Me, 2000, and XP