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Silver 3.5-inch bare hard drive with silver label and exposed circuit board on bottom

Seagate

Seagate IronWolf ST12000VN0007 12TB 7200 RPM 256MB SATA 3.5" internal hard drive

SKU CH-E8GY-CRDHY MPN ST12000VN0007

12 TB NAS drive with 7200 RPM, 256 MB cache and AgileArray for multi-bay RAID

  • Total capacity12 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory256 MB
  • Designed for multi-bay NAS with AgileArray optimisation
  • 12TB capacity stores large media libraries and backups
  • 7200 RPM and 256MB cache deliver responsive throughput
  • Rotational vibration sensors maintain reliability in dense enclosures
  • 180TB yearly workload rating supports continuous 24x7 operation

12TB NAS drive for multi-bay RAID

The Seagate IronWolf ST12000VN0007 is a 12TB 3.5-inch internal hard drive built for network-attached storage. It spins at 7200 RPM with a 256MB cache on a SATA 6.0Gb/s interface. AgileArray firmware adds dual-plane balancing and RAID optimisation for multi-bay enclosures. Rotational vibration sensors help sustain 24x7 operation in always-on environments.

Suits NAS builders who need 12TB CMR capacity

This drive targets users building or expanding a NAS with multiple bays who want conventional magnetic recording and a 180TB-per-year workload rating. It is not for buyers who need a non-RAID desktop drive, a smaller capacity, or an SSD form factor. Shuckers and single-drive external users should look elsewhere.

180TB-per-year workload rating decides fit

The 180TB annual workload rate is the key figure that matches the drive to multi-bay NAS duty cycles. If your planned writes stay well below that level, a lower-rated drive may suffice; if you expect heavier sustained throughput, you will need a higher-rated model.

How it compares

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

Price $242.99
Pricier than about 76% 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 $20.25 per TB
Cheaper than about 92% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineIronWolf
Model nameST12000VN0007
Total capacity12 TB
Recommended useFor NAS systems
Performance
Rotational speed7,200 RPM
Storage
Cache memory256 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.11 mm
Maximum width101.85 mm
Maximum length146.99 mm
Shipping weight0.71 kg
Package size157 × 146 × 37 mm

Questions about this item

How do I decide between the 12TB IronWolf and the higher 16TB model listed in the range?

The 12TB drive shares the same 7200 RPM speed, 256MB cache and SATA 6.0Gb/s interface as the 16TB version, so choose based on how much raw capacity your NAS bays need.

What does the 180TB yearly workload rating mean for my day-to-day NAS use?

It indicates the drive is built for continuous 24x7 operation in multi-bay RAID arrays, handling heavy read and write cycles without exceeding its design limits.

Will the SATA 6.0Gb/s interface bottleneck this 7200 RPM drive in a modern NAS?

The SATA 6.0Gb/s link caps the theoretical transfer ceiling, but the 7200 RPM mechanism and 256MB cache keep sustained throughput well within that limit for typical NAS workloads.

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