Full Details from Amazon.com : http://www.amazon.com/gp/product/B009BFPTCE?tag=onigi-20
Adaptec RAID 71605 Storage Controller 2274400-R
New levels of performance
Advanced data protection
Mini SAS HD connectors
RAID 011E56105060
4 x SFF-8643 mini-SAS HD Internal Connectors
Up to 6Gbs