20TB Mobius 5-Bay FireWire 800, eSATA, USB 3.0 RAID Hard Drive Array Interface: USB 3.0 (Up to 375 MB/Sec); Firewire 800 /IEEE 1394b (Up to 100 MB/Sec); eSATA (Up to 375 MB/sec) 20 Terabyte Capacity (Formatted capacity will vary depending on the RAID mode selected) Toshiba Enterprise 4TB MG04ACA400E SATA3 7200RPM 128MB (x 5) JBOD (default), RAID 0, RAID 1, RAID 3, RAID 5, RAID 10, Combine (Span) Backed by a 2 year limited warranty