Seagate Exos X20 3,5" - 20TB (server) 7200rpm/SAS/256MB/512e/4kN

Specifications SATA 6 Gb/s 12 Gb/s SAS SATA 6 Gb/s 12 Gb/s SAS Capacity 20 TB 20 TB 18 TB 18 TB Standard Model FastFormat[superscript™] (512e/4Kn)[superscript1] ST20000NM007D ST20000NM002D ST18000NM003D ST18000NM000D SED Model FastFormat (512e/4Kn)[superscript1,2] ST20000NM000D ST20000NM003D ST18000NM004D ST18000NM001D SED-FIPS FastFormat (512e/4Kn)[superscript1,2] ST20000NM005D ST18000NM002D FEATURES Helium Sealed-Drive Design Yes Yes Yes Yes Conventional Magnetic Recording (CMR) Yes Yes Yes Yes Protection Information (T10 DIF) — Yes — Yes Super Parity Yes Yes Yes Yes Low Halogen Yes Yes Yes Yes PowerChoice[superscript™] Idle Power Technology Yes Yes Yes Yes PowerBalance[superscript™] Power/Performance Technology Yes Yes Yes Yes Hot-Plug Support[superscript3] Yes Yes Yes Yes Cache, Multi-segmented (MB) 256 256 256 256 Organic Solderability Preservative Yes Yes Yes Yes RSA 3072 Firmware Verification (SD&D) Yes Yes Yes Yes RELIABILITY/DATA INTEGRITY Mean Time Between Failures (MTBF, hours) 2.5 Million 2.5 Million 2.5 Million 2.5 Million Reliability Rating @ Full 24×7 Operation (AFR) 0.35% 0.35% 0.35% 0.35% Non-recoverable Read Errors per Bits Read 1 sector per 10E15 1 sector per 10E15 1 sector per 10E15 1 sector per 10E15 Power-On Hours per Year (24×7) 8,760 8,760 8,760 8,760 512e Sector Size (Bytes per Sector) 512 512, 520, 528 512 512, 520, 528 4Kn Sector Size (Bytes per Sector) 4096 4096, 4160,4224 4096 4096, 4160,4224 Limited Warranty (years) 5 5 5 5 PERFORMANCE Spindle Speed (RPM) 7,200 7,200 7,200 7,200 Interface Access Speed (Gb/s) 6.0, 3.0 12.0, 6.0, 3.0 6.0, 3.0 12.0, 6.0, 3.0 Max. Sustained Transfer Rate OD (MB/s, MiB/s) 285/272 285/272 285/272 285/272 Random Read/Write 4K QD16 WCD (IOPS) 168/550 168/550 168/550 168/550 Average Latency (ms) 4.16 4.16 4.16 4.16 Interface Ports Single Dual Single Dual Rotation Vibration @ 20-1,500 Hz (rad/sec[superscript2]) 12.5 12.5 12.5 12.5 Idle A (W) Average 5.4 5.8 5.4 5.8 Max Operating, Random Read/Write 4K/16Q (W) 9.4, 6.4 9.8, 7.0 9.4, 6.4 9.8, 7.0 Power Supply Requirements +12 V and +5 V +12 V and +5 V +12 V and +5 V +12 V and +5 V ENVIRONMENTAL Temperature, Operating (°C) 5 to 60 5 to 60 5 to 60 5 to 60 Vibration, Non-operating: 2 to 500 Hz (Grms) 2.27 2.27 2.27 2.27 Shock, Operating 2 ms (Read/Write) (Gs) 40 40 40 40 Shock, Non-operating, 2 ms (Gs) 200 200 200 200 PHYSICAL Height (mm/in, max)[superscript4] 26.1/1.028 26.1/1.028 26.1/1.028 26.1/1.028 Width (mm/in, max)[superscript4] 101.85/4.010 101.85/4.010 101.85/4.010 101.85/4.010 Depth (mm/in, max)[superscript4] 147.0/5.787 147.0/5.787 147.0/5.787 147.0/5.787 Weight (lb/g) 670g/1.477lb 670g/1.477lb 670g/1.477lb 670g/1.477lb Carton Unit Quantity 20 20 20 20 Cartons per Pallet/Cartons per Layer 40/8 40/8 40/8 40/8 1 FastFormat models ship in 512e format state. When switching from 512e to 4Kn by executing the FastFormat routine, all data on the drive will be deleted. Note that data must be aligned to 4K sectors to see improved performance in 4Kn format. 2 Self-Encrypting Drives (SED) and FIPS 140-3 Validated drives available through franchised authorised distributors. May require TCG-compliant host or controller support. 3 Supports Hotplug operation per Serial ATA Revision 3.3 specification 4 These base deck dimensions conform to the Small Form Factor Standard (SFF-8301) found at https://www.snia.org/sff. For connector-related dimensions, see SFF-8323.