IronWolf and IronWolf PROTough. 24×7 performance with multi-user technology for higher user workloads, and the first drives built for NAS to be equipped with rotational vibration (RV) sensors. Ready. AgileArray™ provides for drive balance, RAID optimization and advanced power management. Scalable. Up to 10TB means there’s a scalable solution for any NAS use case. •Optimized for NAS with AgileArray.™ AgileArray is built for dual-plane balancingand RAID optimization in multi-bay environments with the most advanced powermanagement possible. •High performance means no lag times or downtime for users during high traf ctime for the NAS. Seagate leads the competition with the highest performance in NAS-class drives. •Range of capacities up to 20TB. More capacity options mean more choices that will fi t within the budget. Seagate provides a scalable solution for any NAS use-case scenario. •Get ahead with more cache. IronWolf provides high-cache options allowing your NAS to serve data faster. •Do more with multi-user technology. Enables user workload rate of 550TB/year. Multiple users can con dently upload and download data to the NAS server, knowing it can handle the workload, whether you’re a creative professional or small business. Specifications 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) 256 Mean Time Between Failures (MTBF, hours) 2,500,000 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) 7,200 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