The Iomega UltraMax Pro Desktop Hard Drive has a triple interface, integrates two SATA II hard drives (2HD x 1TB) to offer a massive 2.0TB capacity plus the power and reliability for robust storage needs. Hot swap drives allow business continuity allowing easy replacement. Flexible hardware RAID configurations: RAID 0 (pre-configured), 1, JBOD, and non-RAID are built-in.