SSD Type SATA, 1.92TB Endurance Read-Intensive, 0.6DW/D number of Drives 12 Capacity (TB) 23.04 4KB Random Read IOPS 735000 4KB Random Write IOPS 312000 Seq Read BW (MB/s) 5700 Seq Write BW (MB/s) 4600 Max. Drives 24 x 2.5 inch SSDs Drive Interface 12Gb/s SAS or 6Gb/s SATA Available SSD Capacities SAS (1DW/D): 3.84TB, 7.68TB SATA (0.6DW/D): 960GB, 1.92TB Host Interface 1+1 I/O Modules (IOM), 3 Mini-SAS HD ports per IOM Management SCSI Enclosure Services LED Indicators Front/Rear: Power, ID, Fault Drive: Activity, Fault Power 1+1 600W, 80+ Gold 90-264V AC input, auto ranging, 47-63Hz Cooling 3 fan modules per power supply, front-to-rear system cooling Fan speed turning via system management interface Environmental Operating Temperature: 5 to 40oC Non-op Temperature: -40 to 60oC Humidity: 5 to 85% relative humidity Operating Altitude: 40C at 3,000ft Sound Power:< 7.2Bels at 23 +/- 2oC Serviceability Hot-swappable IOM, power supply and SSDs Item Dimension ( L inchxW inchxH inch) 22 x 18 x 4 Weight 40.30 lb