Other World Computing (http://www.macsales.com) has announced new OWC Mercury Rack Pro “Quad Interface” 4-Bay 1U solutions with: FireWire 800, FireWire 400, USB 3 and eSATA interface ports; selectable Hardware RAID 0/1/3/5/10/Span and non-RAID Independent Drive modes, and storage/backup capacity up to 12TB.

The Mercury Rack Pro is immediately available in 15 pre-configured solutions, from 2TB to 12TB, priced starting at US$549.99. The Mercury Rack Pro is compatible with Mac OS X 10.2 and higher and Windows Windows XP and later operating systems.

It comes complete with all interface connecting cables, a $100 retail value disk utility software bundle, and up to a five-year solution warranty. For more info go to 
http://eshop.macsales.com/shop/hard-drives/RAID/Rack_Mount/FireWire_USB3_eSATA_1U .