IBM 46M0829 PCI-Express x8 SATA III (6.0Gb/s) ServeRAID M5015 SAS RAID Controller Internal Connectors: 2 x SFF-8087 mini-SAS RAID: RAID 0/1/5/10/50 Cache Memory: 512MB Dimensions: 6.6 x 2.7 x 0.5 Operating Systems Supported: Red Hat Enterprise Linux 4, SuSE Linux Enterprise Server 11, Microsoft Windows 2003, Red Hat Enterprise Linux 5 Parts: 1 year limited Labor: 1 year limited