Best Buy: Drobo 5-Bay External Network Storage (NAS) Black DRDS5A21-G
Drobo 5D Thunderbolt & USB 3.0 DAS Review | Trusted Reviews
Drobo 5D, Model DRDR5-A, working well, W/ Crucial m4 mSATA 64 GB SATA 6Gb/s SSD | eBay
Drobo 5D 20TB: Direct Attached Storage - 5 bay array with mSATA SSD acceleration, 20TB storage included with 5 x 4TB hard drives - USB 3 and Thunderbolt ports (DRDR5A21-20TB) : Amazon.in: Electronics
Review: Drobo can store all your data and keep it safe