areca ARC-1280ML PCI-Express x8 SATA II (3.0Gb/s) Controller Card External Connectors: Serial ATA/300 Internal Connectors: 24 x SATA II RAID: RAID level 0, 1, 1E, 3, 5, 6 (if RAID 6 engine supported) and JBOD Cache Memory: One DIMM socket with default 256MB of DDR2-533 SDRAM with ECC protection, Upgrade to 2GB. An ECC or non-ECC SDRAM module using X8 or X16 chip organization Package Contents: ARC-1280ML Driver Disk User Manual Cables Parts: 1 year limited