Hive Mobile 2TB. Total storage capacity: 2000 GB, Hard drive capacity: 1000 GB, RAID levels: 0, 1, JBOD. Power requirements: AC 100-240V / FireWire 800. Width: 155 mm, Depth: 155 mm, Height: 22.5 mm. Compatible operating systems: Microsoft Windows 2000, XP, 2003, Vista Mac OS X 10.2+