LSI MegaRAID SAS 9266-4i Sgl. Supported hard disk drive interfaces: SAS, Serial ATA, Host interface: PCI Express x8, PCI Express slots version: 2.0. Internal memory: 1024 MB, Internal memory type: DDR3, Memory clock speed: 1333 MHz. Data transfer rate: 6 Gbit/s. Processor family: Dual-Core, Built-in processor: LSISAS2208. Mean time between failures (MTBF): 1031514 h