Iomega REV 120GB backup drives and removable, durable disks are the perfect storage solution for high-capacity files or for archiving client files off-site! EMC Retrospect Express software is included for backup and disaster recovery of all your critical data. Simply add more REV disks to expand storage as your data or business grows and gain the peace of mind that your data is secure and always available. Capacity: 120GB native capacity on each removable disk. Compressed capacity: 240GB. Transfer Rate: Up to 35 MB/s