General

• Total drive bays 4
• Drive form factor 3.5 inches
• Storage interface SATA (3.0 GBps)
• Drive insertion Bare drive

Array types and file systems

• Array types Other redundancy
• Automatic storage expansion Yes
• Mixed drive capacities Yes
• Hot-swappable drives Yes
• Degraded usage mode Yes
• Data integrity S.M.A.R.T. compliant, Battery-backed NVRAM
• File system support FAT32, NTFS, HFS, HFS+ (Journaled), EXT3

Other features

• Activity / status indicator Yes
• Desktop client application Yes
• OS support Windows, Mac OS
• Capacity gauge Yes
• Health status indicator Yes
• Cooling fan Yes
• Security lock slot Yes
• Upgradeable firmware Yes