Seagate Exos X20 ENTERPRISE 512E/4KN INTERNAL 3.5' SATA DRIVE, 20TB, 6GB/S, 7200RPM, 5YR WTY Scalable hyperscale applications/cloud data centers Massive scale-out data centers Big data applications High-capacity density RAID storage Mainstream enterprise external storage arrays Distributed file systems, including Hadoop and Ceph Enterprise backup and restore—D2D, virtual tape Centralized surveillance Specifications Capacity 20 TB Helium Sealed-Drive Design Yes SuperParity Yes Low Halogen Yes PowerChoice™ Technology Yes PowerBalance Technology Yes Cache, Multi-segmented (MB) 256 Mean Time Between Failures (MTBF, hours) 2,500,000 Reliability Rating @ Full 24×7 Operation (AFR) 0.35% Nonrecoverable Read Errors per Bits Read 1 sector per 10E15 Power-On Hours per Year 8,760 512e Sector Size (Bytes per Sector) 512 4Kn Sector Size (Bytes per Sector) 4096 Warranty, Limited (years) 5 Spindle Speed (RPM) 7,200 Height (in/mm, max) 1.028 in/26.11 mm Width (in/mm, max) 4.01 in/101.85 mm Depth (in/mm, max) 5.787 in/147 mm Weight (lb/g) 620 g/1.37 lb