HP 300GB SAS 3Gb/s 15K Hard Disk Drive. Hard drive capacity: 300 GB, Hard drive rotational speed: 15000 RPM, Hard drive interface: Serial Attached SCSI (SAS). Operating temperature range (T-T): 0 - 60 °C, Storage temperature range (T-T): -40 - 70 °C, Operating relative humidity range: 5 - 90 %