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Silver 3.5 inch hard drive bare drive SATA enterprise storage

Seagate

Seagate Exos X16 12TB 7200 RPM 256MB SATA 3.5" internal hard drive ST12000NM001G

SKU CH-2CAP-B9RKZ

12 TB enterprise hard drive with helium-sealed design, 7200 RPM, 256 MB cache and SATA 6.0 Gb/s interface for high-capacity storage

  • Total capacity12 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBARE DRIVE
  • Flash memory typeHard Drive
  • Rotational speed7,200 RPM
  • 12 TB capacity stores massive enterprise datasets
  • 7200 RPM spindle speed enables fast sequential access
  • 256 MB cache buffers bursts for smooth throughput
  • Helium-sealed design reduces power draw and weight
  • 5 million-hour MTBF rating backs long-term reliability

Seagate Exos X16 12TB Enterprise Drive

The Seagate Exos X16 is a 12TB 3.5 inch internal hard drive built for enterprise storage workloads. It spins at 7200 RPM with a 256MB cache and connects via a SATA 6.0Gb/s interface. The drive uses a helium sealed design to lower power consumption and weight.

Helium Sealing and Sector Format Support

The helium sealed-drive design reduces total cost of ownership through lower power draw and lighter weight. Next-generation side-sealing weld technology adds handling robustness and leak protection. Digital environmental sensors monitor internal conditions for optimal operation. The standard model ships in 512e format and supports both 512e and 4Kn logical sector sizes.

Suited for Hyperscale Archives Not for Boot Drives

This drive suits hyperscale environments needing large-capacity, low-latency bulk storage with a 2.5M-hour MTBF rating. Seagate Secure features enable fast, safe drive retirement. Builders wanting a primary OS boot drive or low-capacity desktop storage should consider smaller, faster alternatives.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $336.99
Pricier than about 85% of the 4,938 comparable items (median $107.99).
Total capacity 12 TB
Higher than about 90% of the 2,372 comparable items (median 2 TB).
Price per TB $28.08 per TB
Cheaper than about 85% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineExos X16
Model nameST12000NM001G
Total capacity12 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Flash memory typeHard Drive
Cache memory256 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

Will the helium seal on this ST12000NM001G ever need service or replacement?

The helium sealed-drive design uses next-generation side-sealing weld technology for leak protection and is not user-serviceable; no maintenance of the seal is required.

What limit appears first when the 7200 RPM drive runs sustained workloads?

The 6.0 Gb/s SATA interface bandwidth caps sustained throughput before the 256 MB cache or 7200 RPM mechanics reach their ceiling.

How much heat and power does the 12 TB helium drive produce during all-day operation?

Helium sealing lowers power draw and weight versus air-filled drives, and digital environmental sensors continuously monitor internal conditions for optimal operation.

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