Western Digital WDG2TP10000N My Book Pro Edition II 1 TB USB/Firewire Triple Interface External Hard Drive FireWire 800, FireWire 400, and USB 2.0 triple interface Dual drives offer a massive 1 TB (1000 GB) storage capacity from dual Powerful backup software that includes full system backup and recovery, easy scheduling, and encryption 7200 RPM spindle Offers RAID mirroring for extra data protection or RAID striping for extraordinary capacity and performance