About the Adaptec RAID 6405The Adaptec RAID 6405 is a SAS RAID controller with these features:Low-profile MD2Form FactorPCIe Gen2Bus compatibilityx8PCIe bus width6 Gb/s per portData transfer rate4Phys (Unified Serial Ports)512 MB DDR2Standard cache1 mini-SAS x4 (SFF-8087)Connectors, internal4 direct-attached (or up to 256 with expanders)Maximum number of disk drivesI2C and SGPIO (Serial General Purpose Input/Output)Enclosure SupportYesOnboard speakerAdaptec Flash Backup Module AFM-600 (optional; sold separately)Zero Maintenance Cache ProtectionModule19Proprietary and Confidential to PMC-Sierra, Inc.Document No.: CDP-00277-02-A Rev. A, Issue:Serial Attached SCSI RAID Controllers Installation and User's Guide
