The 70 GB REV SATA Internal Backup Drive from Iomega allows you to backup critical data on removable 70 GB REV hard drive back-up disks. Backup software is included for Windows computers, allowing you to backup critical data on your system easily. REV disks are easily swapped out and offer unlimited rewritability. Offering a truly scalable backup solution, the REV can fulfill many different types of backup needs.