Iomega REV® 70GB ATAPI Backup Drive with Removable Disk. Hard drive capacity: 70 GB, Hard drive rotational speed: 4200 RPM, Hard disk average seek time: 12 ms. Weight: 0.42 kg, Height: 25 mm, Width: 101 mm. Bundled software: EMC Retrospect Express backup software incl. disaster recovery. Minimum hard disk space: 1024 MB, Minimum processor: 333 Mhz, Minimum RAM: 256 MB