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20TB IronWolf® Pro ST20000NT001, CMR, 7200 RPM, SATA 6Gb/s, 512e, 256MB cache, 3.5" HDD

  • SKU: 15178573
  • Manufacturer: SEAGATE
  • MPN: ST20000NT001
  • Availability: USUALLY SHIPS WITHIN 3-5 DAYS
Starting At
Capacity 20TB
Standard Model Number ST20000NT001
Interface SATA 6Gb/s
Drive Bays Supported Unlimited
Recording Technology CMR
Drive Design (Air or Helium) Helium
Workload Rate Limit (WRL) 550
Rotational Vibration (RV) Sensors Yes
Cache (MB) 256MB
Reliability/Data Integrity
Mean Time Between Failures (MTBF, hours) 2,500,000 hr
Non-recoverable Read Errors per Bits Read, Max 1 per 10E15
Power-On Hours (per year) 8,760
Sector Size (Bytes per Logical Sector) 512E
Rescue Data Recovery Services (years) 3
Limited Warranty (years) 5
Spindle Speed (RPM) 7200RPM
Interface Access Speed (Gb/s) 6.0, 3.0, 1.5
Max. Sustained Transfer Rate OD (MB/s) 285MB/s
Rotational Vibration @ 10-1500 Hz (rad/s) 12.5
Power Consumption
Startup Current, Typical (12V, A) 2.0 A
Idle Power, Average (W) 5.0 W
Average Operating Power (W) 7.7 W
Standby Mode, Typical (W) 1.2 W
Sleep Mode, Typical (W) 1.2 W
Power Supply Requirements +12 V and +5 V
Operating Temperature (ambient, min °C) 0°C
Operating Temperature (drive reported, max °C) 65°C
Non-operating Temperature (ambient, min °C) -40°C 
Non-operating Temperature (ambient, max °C) 70°C
Vibration, Non-operating: 10 Hz to 500 Hz (Grms) 2.27
Acoustics, Idle (typical, measured in Idle 1 state) (dBA) 20
Acoustics, Seek (typical) (dBA) 26
Shock, Operating 2 ms (Read/Write) (Gs) 40/40 Gs
Shock, Non-operating, 1 ms and 2 ms (Gs) 200
Height (mm/in) 26.11 mm/1.028 in
Width (mm/in, max) 101.85 mm/4.01 in
Depth (mm/in, max) 146.99 mm/5.787 in
Weight (g/lb, typical)  690 g/1.521 lb