Seagate ST22000NT001 22TB IronWolf Pro 3.5' SATA3 NAS Hard Drive 24x7 Performance 7200 RPM 256MB Cache HDD Seagate ST22000NT001 22TB IronWolf Pro 3.5' SATA3 NAS Hard Drive - Capacity: 22TB - Interface: SATA 6Gb/s Connector - CMR Recording Technology - Helium Drive Design - Rotational Vibration RV Sensors - MTBF: 2,500,000 HoursIronWolf Pro is designed for commercial and enterprise NAS. Delivering Tough, Ready and Scalable 24x7 performance in multi-bay, multi-user environments - Key Advantages - Optimized for NAS with AgileArrayAlways On, Always Accessible - All-CMR Portfolio - Up to 22TBClass-Leading Reliability and Dependability - Rotational Vibration (RV) sensors.IronWolf Health Management (IHM)Peace of mind with Data Recovery - Best-Fit Applications Commercial and Enterprise NASVideo Production RAID and - Shared Network Storage - Workstations and ServersSpecInterface SATA 6Gb/s - Drive Bays Supported Unlimited - Recording Technology CMRDrive Design (Air or Helium) Helium - Workload Rate Limit (WRL) 550Rotational Vibration (RV) Sensors Yes - Cache (MB) 512MBSpindle Speed (RPM) 7200RPMShock, Operating 2ms (Read/Write) (Gs) 40/40Gs