Total: 18 TB SATA III (6 Gb/s) 3.5" HDD (7200 rpm)Read SpeedMaximum: 269 MB/sWrite SpeedMaximum: 269 MB/sRead SpeedMaximum: 269 MB/sWrite SpeedMaximum: 269 MB/sBuffer512 MBHDD SpecsAreal Density1022 Gb/in²Disk Sector Format512eNoise Level3.6 dB (Active)2.0 dB (Idle)Reliability / Data IntegrityAnnualized Failure Rate (AFR)0.35 %EncryptionNoneEndurance (Total Bytes Written)550 TBLoad/Unload Cycles600,000Mean Time Between Failures (MTBF)2.5 Million HoursNon-Recoverable Read Errors per Bits Read1 in 1015ElectricalPower Draw6.5 W (Active)5.6 W (Idle)0.31 W (Standby)Supported Voltage5 VDC, 12 VDCEnvironmentalOperating Temperature41 to 140°F / 5 to 60°C

Temperature-40 to 158°F / -40 to 70°COperating Shock50 G / 2.0 ms

Shock250 G / 2.0 msOperating Vibration0.67 G / 5 to 500 Hz

Vibration1.04 G / 2 to 200 Hz