OWC Introduces the ThunderBay 4 RAID 5 Edition
 

OWC continues to innovate and build on the proven performance and flexibility of its second generation ThunderBay 4 by releasing the ThunderBay 4 RAID 5 Edition. The ThunderBay 4 RAID 5 Edition gives users the freedom to use this cutting-edge technology as additional storage or backup, with the optimal balance of data-redundancy and performance via various RAID configurations.

Thinking Outside the Enclosure
Over a year ago, OWC and SoftRAID created a strong collaborative partnership to harness the full power and flexibility of ThunderBay 4 and software RAID 5 to bring enhanced performance, storage, and data-redundancy capabilities to the Mac.

http://www.techpowerup.com/203820/ow...5-edition.html