Seagate Exos X16 16TB 12Gb/s SAS

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.

Industry’s first 16TB drive for 33% more petabytes per rack.

Highest 16TB hard drive performance with enhanced caching, making it perfect for cloud data center and massive scale-out data center applications.

Data protection and security: Seagate Secure features for safe, affordable, fast, and easy drive retirement.

Upping the Capacity Game

Seagate’s hard disk drive division has upped their game with the new Exos X16 16TB. Capacity ramped up faster than the competition since the 8TB models came to market. The 16TB Exos X16 uses Helium technology which allows for 9 x 1.8TB (approx.) CMR (conventional magnetic recording) platters together with 18 TDMR heads to be crammed into a 3.5in format drive with a height of just 26.11mm. The drive has a spindle speed of 7,200rpm and is equipped with 256MB of cache. The official transfer rates for the Exos X16 are up to 261MB/s while the average latency is 4.16ms.

Proven Enterprise-Class Reliability

  • 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

Seagate X16 Specs


Drive Capacity 16.00 TB
Cache Memory 256 MB


Interface SAS III (12 Gb/s)
Maximum Read Speed 261 MB/s
Maximum Write Speed 249 MB/s
Random Read Speed 170 IOPS
Random Write Speed 440 IOPS


Drive Type HDD
Form Factor 3.5″

HDD Specs

Spindle Speed (RPM) 7200 RPM

Reliability / Data Integrity

Mean Time Between Failures (MTBF) 2.5 Million Hours
Non-Recoverable Read Errors per Bits Read 1 in 1015


Power Draw 5.0 W (Idle)
10.2 W (Active)
6.2 W (Active)
Supported Voltage 5 VDC, 12 VDC


Operating Shock 50 G / 2.0 ms
Storage Shock 200 G / 2.0 ms
Operating Vibration 2.27 G / 2 to 500 Hz
Operating Temperature 41 to 140°F / 5 to 60°C


Dimensions (W x H x D) 4.01 x 1.03 x 5.79″ / 101.85 x 26.11 x 147 mm
Weight 1.48 lb / 0.67 kg

Seagate Exos 16TB Enterprise HDD SATA 6Gb/s 512e/4Kn 7200 RPM 256MB Cache 3.5″ Internal Hard Drive ST16000NM001G