LSI 9211-4i. Supported hard disk drive interfaces: Serial ATA, Host interface: PCI Express x4, PCI Card form factor: half-height (low-profile). Data transfer rate: 6 Gbit/s. Mean time between failures (MTBF): 2000000 h. Voltage: +3.3, +12 V, Power consumption (typical): 7 W. Operating temperature range (T-T): 0 - 55 °C, Storage temperature range (T-T): -45 - 105 °C, Operating relative humidity range: 0 - 90 %