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Silver 3.5 inch enterprise hard drive with green circuit board visible on underside

Seagate

Seagate Exos X14 12TB SATA 7200 RPM 3.5" internal hard drive ST12000NM0008Product

SKU CH-KSD7-8TBTQ MPN ST12000NM0008Product

Enterprise 12 TB SATA hard drive with helium sealing and 2.5M-hour MTBF for hyperscale workloads

  • Total capacity12 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Flash memory typeSLC
  • Rotational speed7,200 RPM
  • Recommended useFor Enterprise Storage
  • 12 TB capacity stores massive datasets
  • 7200 RPM speed delivers fast sequential throughput
  • Helium-sealed design reduces drag and power draw
  • 5M-hour MTBF rating signals enterprise-grade reliability
  • PowerBalance feature optimises IOPS per watt

Exos X14 12TB SATA Enterprise Drive

The Seagate Exos X14 is a 3.5-inch internal hard drive built for enterprise storage workloads. It delivers 12TB of capacity over a SATA 6.0Gb/s interface and spins at 7200 RPM. A helium-sealed design and digital environmental sensors support reliable operation in high-density racks. The drive carries a 2.5M-hr MTBF rating for continuous use.

Who This Suits and Who It Does Not

This drive fits storage arrays and servers that need high-capacity SATA storage optimised for large sequential transfers. The PowerBalance feature helps maximise IOPS per watt in power-constrained environments. Buyers who need a different interface protocol or a smaller form factor for laptop or compact desktop bays should look elsewhere.

Deciding Specification — SATA 6.0Gb/s Interface

The SATA 6.0Gb/s interface determines whether this drive connects to your controller or backplane. Verify that your system provides a standard SATA data and power connection for a 3.5-inch device. Compatibility with the host interface is the single factor that decides if this is the right part.

How it compares

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

Price $303.99
Pricier than about 83% 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 $25.33 per TB
Cheaper than about 89% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Total capacity12 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Storage
Flash memory typeSLC
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

How often will the helium seal on this Exos X14 drive need to be checked or replaced?

The helium sealed-drive design is hermetically sealed at the factory and requires no maintenance or replacement for the life of the drive.

What limits sustained write performance on this 12TB SATA drive during heavy workloads?

The SATA 6.0Gb/s interface and 7200 RPM spindle speed set the maximum sustained throughput ceiling.

How much power does the PowerBalance feature draw when this drive runs continuously in a server?

PowerBalance optimizes IOPS per Watt, and the helium design reduces drag to lower overall power consumption under load.

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