Intel SRCSAS144E SAS/SATA PCI RAID Controller The Intel RAID Controller SRCSAS144E supports both serial-attached SCSI (SAS) and serial ATA (SATA) disk drives. Supporting dual architectures allows solutions to be customized for performance, reliability, system expansion flexibility and hard drive The RAID Controller SRCSAS144E provides flexibility and helps lower total cost of ownership with a standardized server and storage infrastructure. It is designed with four internal SAS ports and four external SAS ports; and the controller utilizes a a x4 or wider PCI Express* server board slot. Supports SAS devices at speeds up to 300MB/second per port Supports the SATA II protocol over SAS transport Contains four internal SAS ports and four external SAS ports Supports up to 32 physical devices and 64 logical drivesSupports RAID levels 0, 1, 5, 10, and 50.Online capacity expansionOnline RAID level migrationPhysical drive roamingRAID controller migrationFast virtual drive initialization SAS/SATA drive hot plugAuto rebuildVariable data stripe size configured per virtual drive128 MB of ECC DDR2 SDRAM integrated on the controllerRead and write cache policySAF-TE, SES2, and SGPIO intelligent enclosure supportPCI hot plug support