(REVolutionary disk) An early high-capacity removable disk drive for PCs and Macs from Iomega. Introduced in 2004 with a 35GB native capacity, later increased to 70GB, REV drives connected to the computer via all major interfaces. Disk libraries provided up to 700GB of storage. Very Protected Each cartridge contained its own motor, eliminating the spindle hole where dust could enter. With platters protected by an air filtration system and shutters on both the cartridge and drive, the disk's estimated shelf life was 30 years. See removable disk.