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Seagate Exos X16 3.5-Inch Internal 512e/4Kn SAS Enterprise Hard Drive
Perfect for storage-intensive workloads, OLTP, Hadoop, Ceph and HPC applications

Seagate Exos X16 3.5-Inch Internal 512e/4Kn SAS Enterprise Hard Drive

Seagate Products
Seagate Exos X16 3.5-Inch Enterprise Hard Drives - 512e/4Kn SAS
Seagate Exos X16 3.5-Inch Internal 512e/4Kn SAS Enterprise Hard Drive - 10 TB
List Price: $780.00
Our Price: $669.00
Seagate Exos X16 3.5-Inch Internal 512e/4Kn SAS Enterprise Hard Drive - 12 TB
List Price: $968.00
Our Price: $774.00
Seagate Exos X16 3.5-Inch Internal 512e/4Kn SAS Enterprise Hard Drive - 14 TB
List Price: $1,264.00
Our Price: $894.00
Seagate Exos X16 3.5-Inch Internal 512e/4Kn SAS Enterprise Hard Drive - 16 TB
List Price: $1,429.00
Our Price: $1,019.00
Seagate Exos X16 3.5-Inch Enterprise Hard Drives - 512e/4Kn SAS SED
Seagate Exos X16 3.5-Inch Internal 512e/4Kn SAS SED Enterprise Hard Drive - 14 TB
Our Price: Request a Quote
Seagate Exos X16 3.5-Inch Internal 512e/4Kn SAS SED Enterprise Hard Drive - 16 TB
Our Price: Request a Quote


Exos EnterpriseOverview:

Scalable. Responsive. Innovative.

For everything hyperscale, there’s Exos X- the most powerful way to access the datasphere and harness the full potential of the cloud. Exos X16, Exos X12, and Exos X10 enterprise hard drives integrate the latest technology in support of a scalable, secure, and reliable cloud data center. Specifically designed to work in highly scalable environments requiring low power consumption and weight, the Exos X series hard drives perform consistently while scaling to meet the stringent TCO requirements of most cloud-based data centers.

Exos X12 Series

Seagate manufactures hard drives that specifically address the needs of the hyperscale storage market. As the flagship of the Seagate X class, the Exos X16 enterprise hard drives are the highest-capacity hard drives in the fleet.

  • Stores up to 12.8PB in a 42U rack with helium technology
  • Leading sustained data rate 261MB/s
  • Random write of 440 IOP/s
  • Reduced complexity with FastFormat™
  • Reduced TCO with low weight of 670g and 0.31 W/TB
  • 550TB/yr-10x the workload rating of desktop drives
  • Seagate Secure encryption technology

Best-Fit Applications

  • 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


Maximum Storage Capacity for Highest Rack Space EfficiencyMaximum Storage Capacity for Highest Rack Space Efficiency

  • Industry's first 16TB drive for 33% more petabytes per rack1
  • Highest 16TB hard drive performance with enhanced caching, making it perfect for cloud data center and massive scale-out data center applications
  • Hyperscale SATA model tuned for large data transfers and low latency
  • PowerBalance™ feature optimizes Watts/TB
  • Helium sealed-drive design delivers lower total cost of ownership through lower power and weight
  • Next-generation helium side-sealing weld technology for added handling robustness and leak protection
  • Digital environmental sensors to monitor internal drive conditions for optimal operation and performance
  • Data protection and security: Seagate Secure™ features for safe, affordable, fast, and easy drive retirement
  • Proven enterprise-class reliability backed by 5-year limited warranty and 2.5M-hr MTBF rating

Innovative Helium Design

The Exos X16 hard drive is built on a rock-solid sealed-drive design. A wrought-aluminum base and a helium sealed-drive design with no porosity and uniform density are designed with superior material and wide-weld design for a more robust, hermetically sealed-drive enclosure. Exos X12 hard drives incorporate digital environmental sensors for measuring pressure in the drive, helping to ensure high reliability, performance and quality.

Seagate Secure

Enhanced Enterprise Reliability, Data Protection and Security

Seagate is the industry leader in data-at-rest protection with the broadest offering of technologies to help ensure reliable, trusted products. Seagate Secure™ models provide hardware-based security to help protect data-at-rest. With Instant Secure Erase, drive retirement is safe, affordable, fast and easy. Seagate Secure models meet the NIST 800-88 media sanitization specification and support the Trusted Computer Group (TCG) standard.2 The X class Exos X12 hard drive is a proven, enterprise-class hard drive with maximum reliability backed by a 2.5 million hour MTBF.

1 Compared to 12TB competitive product.
2 Self-Encrypting Drives (SED) are not available in all models or countries. May require TCG-compliant host or controller support.


Specifications - 512 Emulation/4K Native 16TB 14TB
Standard Model FastFormat™1 ST16000NM002G ST14000NM002G
SED Model FastFormat1,2 ST16000NM004G ST14000NM004G
SED-FIPS FastFormat1,2 ST16000NM009G ST14000NM012G
Interface 12Gb/s SAS 12Gb/s SAS
Helium Sealed-Drive Design Yes Yes
Protection Information (T10 DIF) Yes Yes
SuperParity Yes Yes
Low Halogen Yes Yes
PowerChoice™ Idle Power Technology Yes Yes
PowerBalance™ Power/Performance Technology Yes Yes
Hot-Plug Support3 Yes Yes
Cache, Multisegmented (MB) 256 256
Organic Solderability Preservative Yes Yes
RSA 2048 Firmware Verification (SD&D) Yes Yes
Reliability / Data Integrity
Mean Time Between Failures (MTBF, hours) 2,500,000hr 2,500,000hr
Reliability Rating @ Full 24x7 Operation (AFR) 0.35% 0.35%
Nonrecoverable Read Errors per Bits Read 1 sector per 10E15 1 sector per 10E15
Power-On Hours per Year (24x7) 8760 8760
512e Sector Size (Bytes per Sector) 512, 520, 528 512, 520, 528
4Kn Sector Size (Bytes per Sector) 4096, 4160, 4224 4096, 4160, 4224
Limited Warranty (years) 5 5
Spindle Speed (RPM) 7200RPM 7200RPM
Interface Access Speed (Gb/s) 12.0, 6.0, 3.0 12.0, 6.0, 3.0
Max. Sustained Transfer Rate OD (MB/s,MiB/s) 261, 249 261, 249
Random Read/Write 4K QD16 WCD (IOPS) 170/400 170/400
Average Latency (ms) 4.16 4.16
Interface Ports Dual Dual
Rotation Vibration @ 1500 Hz (rad/s²) 12.5 12.5
Power Consumption
Idle A (W) Average 5.0W 5.0W
Max Operating, Random Read/Write 4K/16Q (W) 10.2, 6.2 10.2, 6.2
Power Supply Requirements +12 V and +5 V +12 V and +5 V
Temperature, Operating (°C) 5°C - 60°C 5°C - 60°C
Vibration, Nonoperating: 2 to 500Hz (Grms) 2.27 2.27
Shock, Operating 2ms (Read/Write) (Gs) 50 50
Shock, Nonoperating, 2ms (Gs) 200 200
Height (mm/in, max)4 26.11mm/1.028in 26.11mm/1.028in
Width (mm/in, max)4 101.85mm/4.010in 101.85mm/4.010in
Depth (mm/in, max)4 147.0mm/5.787in 147.0mm/5.787in
Weight (g/lb) 705g/1.554lb 705g/1.554lb
Carton Unit Quantity 20 20
Cartons per Pallet/Cartons per Layer 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 fomat.
2 Self-Encrypting Drives (SED) and FIPS 140-2 Validated drives available through franchised authorised distributors. May require TCG-compliant host or controller support.
3 Supports Hotplug operation per Serial ATA Revision 3.2 specification
4 These base deck dimensions conform to the Small Form Factor Standard (SFF-8301) found at For connector-related dimensions, see SFF-8323.


Front View
Right Angle View
Inside View


Download the Seagate Exos X16 3.5-Inch Enterprise HDD Datasheet (.PDF)

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