LSI MegaRAID SAS 9280-16i4e. Supported hard disk drive interfaces: Serial ATA, Host interface: PCI Express x8, PCI Card form factor: full-height. Internal memory: 512 MB, Internal memory type: DDR2, Memory clock speed: 800 MHz. Data transfer rate: 6 Gbit/s. Processor family: PowerPC, Processor clock speed: 800 MHz. Mean time between failures (MTBF): 919964 h