The 2.5" Firewire ieee 1394 Enclosure will accommodate a 9.5mm thick hard disk and is powered directly from the 6-pin bus port of the laptop or PC or AC adapter power. If your running Windows ME/2000/XP or Mac OS 9.0 or higher, no driver is needed for operation. Adding a mass storage device can't get any easier.  The kit also includes a convenient leather jacket for the enclosure box and a DC cable for extra power. Back to the IEEE 1394 2.5 inch Firewire enclosure home page