What makes Iomega REV revolutionary is the unique combination of capacity, low media cost, and hard drive-caliber performance. Iomega developed new technology to separate the 2.5 hard disk platter and spindle motor from the rest of the regular hard drive components. The disk and motor are housed in a rugged, removable cartridge, leaving the disk heads and electronics - the most expensive components - in the drive section. This makes the drive and disk system very cost effective, as many of the components do not need to be duplicated to add capacity to the system.REV features 35GB native and 90GB compressed capacity per disk, and unlimited capacity through low-cost removable disks. Back up and restore data up to 7 times faster than DDS4 or DDS5 tape. The maintenance-free design allows unlimited disk rewritability and password protection. Professional-grade backup and recovery software is included.