Seagate Ironwolf Pro 8TB 3.5" 7200rpm SATA 6Gb/s 256MB Cache NAS Hard Disk Drive, 550 TB/year, ST8000NT001, Unlimited Drive bays supported, CMR recording technology, 512e Sector size, 255MB/s Maximum sustained transfer rate ODSpecifications:Capacity 8TBStandard Model Number ST8000NT001Interface SATA 6Gb/sFeaturesDrive Bays Supported UnlimitedRecording Technology CMRDrive Design (Air or Helium) AirWorkload Rate Limit (WRL) 550Rotational Vibration (RV) Sensors YesCache (MB) 256Reliability/Data IntegrityMean Time Between Failures (MTBF, hours) 2000000Nonrecoverable Read Errors per Bits Read, Max 1 per 10E15Power-On Hours (per year) 8760Sector Size (Bytes per Logical Sector) 512EPerformanceSpindle Speed (RPM) 7200Interface Access Speed (Gb/s) 6.0, 3.0, 1.5Max. Sustained Transfer Rate OD (MB/s) 255MB/sRotational Vibration @ 10-1500 Hz (rad/s) 12.5Power ConsumptionStartup Current, Typical (12V, A) 2Idle Power, Average (W) 7.8Average Operating Power (W) 10.1WStandby Mode, Typical (W) 1Sleep Mode, Typical (W) 1Power Supply Requirements +12 V and +5 VEnvironmental/TemperatureOperating Temperature (ambient, min °C) 0Operating Temperature (drive reported, max °C) 65Nonoperating Temperature (ambient, min °C) -40Nonoperating Temperature (ambient, max °C) 70Environmental/AcousticsVibration, Nonoperating: 10Hz to 500Hz (Grms) 2.27Acoustics, Idle (typical, measured in Idle 1 state) (dBA) 28Acoustics, Seek (typical) (dBA) 30Environmental/ShockShock, Operating 2ms (Read/Write) (Gs) 70/40GsShock, Nonoperating, 1ms and 2ms (Gs) 300PhysicalHeight (mm/in) 26.11mm/1.028inWidth (mm/in, max) 101.85mm/4.01inDepth (mm/in, max) 146.99mm/5.787inWeight (g/lb, typical) 720g/1.59lbCarton Unit Quantity 20Cartons per Pallet/Cartons per Layer 40/8