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Seagate 16TB HDD Exos X16 7200 RPM 512e/4Kn SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive (ST16000NM001G) (Renewed)
Amazon Renewed

Seagate 16TB HDD Exos X16 7200 RPM 512e/4Kn SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive (ST16000NM001G) (Renewed)

Bottom line: The Seagate 16TB HDD Exos X16 7200 RPM 512e/4Kn SATA 6Gb/s 256MB Cache: 16TB capacity, flagship of Seagate's Exos X class; main trade-off: renewed unit, not new; possible cosmetic or prior-use wear.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For external drives and portable storage, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ 16TB capacity, flagship of Seagate's Exos X class
  • ✓ 7200 RPM with 256MB cache for fast enterprise throughput
  • ✓ Helium-sealed for uniform density and lower power draw
  • ✓ PowerBalance feature raises IOPS per watt
  • ✓ SATA 6Gb/s 512e/4Kn drops into standard 3.5-inch bays

Cons

  • ✗ Renewed unit, not new; possible cosmetic or prior-use wear
  • ✗ Short 6-month replacement warranty for an enterprise drive
  • ✗ 7200 RPM enterprise spindle runs loud and warm in desktops
  • ✗ Built for hyperscale fleets; overkill for basic PC backups

Manufacturer description

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.

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SpecPicks Verdict

SpecPicks scored Seagate 16TB HDD Exos X16 7200 RPM 512e/4Kn SATA 6Gb/s 256MB Cache… using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. Amazon Renewed's external storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Factory Seagate hard drives come with a six-month replacement warranty.
  • PowerBalance feature enhances IOPS/ Watt
  • Helium - sealed drives means no porosity and uniform density

Full Specifications

BrandSeagate
ColorSilver
Weight001g
Model NameExos
Unit Count1 Count
Form Factor3.5-inch
Media Speed261 megabytes_per_second
Model NumberST16000NM001G
Hard-Drive Size16 TB
Mfr Part NumberST16000NM001G
Number of Items1
Special Feature512e/4Kn Sector Size Support
Hardware PlatformLinux, PC
Installation TypeInternal Hard Drive
Compatible DevicesBusiness NAS, Desktop, JBOD Enclosure, Storage Server
Data Transfer Rate6 gigabits_per_second
Enclosure MaterialAluminum
Additional Features512e/4Kn Sector Size Support
Hard Disk InterfaceSerial ATA-600
Warranty Description2 years seller warranty

Ready to buy?

Seagate 16TB HDD Exos X16 7200 RPM 512e/4Kn SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive (ST16000NM001G) (Renewed) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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Seagate 16TB HDD Exos X16 7200 RPM 512e/4Kn SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive (ST16000NM001G) (Renewed)
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