Areca ARC-1280ML 24 Port PCIe SATA Host RAID Controller Card PCI-e x8 (x8 and x16 slot compatible) ,24 Channel PCI-e x8 to SATA II RAID Controller ,Six internal Mini-SAS Connectors Support up to 24 SATA II and SATA I Hard Drives, RAID level 0, 1, 1E, 3, 5, 6 and JBOD Intel 800MHz IOP341 I/O processor 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 Write-through or write-back cache support