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Silver rectangular 3.5 inch internal hard drive with circuit board visible on underside

Seagate

Seagate BarraCuda ST3000DM007 3TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-W13X-KXVQQ MPN ST3000DM007

A 3.5-inch SATA drive with 3TB capacity, 5400 RPM and 256MB cache for daily computing

  • Total capacity3 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Flash memory typeHard Drive
  • Rotational speed5,400 RPM
  • Cache memory256 MB

Model 3TB 5400RPM

  • 3TB capacity stores large media libraries and backups
  • 256MB cache accelerates frequent file access
  • 5400 RPM spindle balances speed with quiet operation
  • SATA 6.0Gb/s interface enables fast burst transfers
  • 5-inch form factor fits standard desktop bays

Capacity and interface

The Seagate BarraCuda ST3000DM007 is a 3TB 3.5-inch desktop internal hard drive with a SATA 6.0Gb/s interface. It spins at 5400 RPM and includes a 256MB cache for everyday storage tasks. The drive measures 20.20mm in height, 101.85mm in width and 146.99mm in length. It is supplied new and suited for daily computing workloads.

Who this suits and who should look elsewhere

This drive fits builders adding bulk storage for documents, media libraries or backups in a standard desktop chassis. Buyers needing higher spindle speeds for intensive random access or lower latency for primary operating system boot should consider a different class of storage. The 3.5-inch form factor requires a compatible drive bay and SATA power and data connections.

Deciding specification

The 5400 RPM spindle speed is the single figure that determines whether this drive matches the workload. It delivers the throughput expected for sequential file storage and archival use at this capacity. Systems requiring faster random access performance will not achieve that target with this rotational speed.

How it compares

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

Price $78.99
Cheaper than about 59% of the 4,938 comparable items (median $107.99).
Total capacity 3 TB
Higher than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $26.33 per TB
Cheaper than about 87% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineBarraCuda
Model nameST3000DM007
Total capacity3 TB
Recommended useFor Daily Computing
Performance
Rotational speed5,400 RPM
Storage
Flash memory typeHard Drive
Cache memory256 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height20.2 mm
Maximum width101.85 mm
Maximum length146.99 mm
Shipping weight0.43 kg
Package size146 × 102 × 19 mm

Other versions of this model

5 more in the same range

Questions about this item

How often should I plan to replace the mechanical platters or motor in the ST3000DM007 after continuous daily use?

The drive has no user-serviceable platters or motor; Seagate rates the BarraCuda family for typical desktop workloads and the unit is covered by the manufacturer's standard limited warranty period.

What is the first performance limit I will hit when writing large files continuously to the 3TB SATA 6.0Gb/s drive?

Sustained throughput is capped by the 5400 RPM spindle speed and the 256MB cache, so the mechanical media transfer rate becomes the bottleneck before the SATA 6.0Gb/s interface saturates.

How much heat and noise does the 3.5-inch 5400 RPM drive produce when it runs all day in a desktop case?

At 5400 RPM the drive operates at typical desktop acoustics and thermal output; advanced power modes reduce energy use during idle periods, keeping case temperatures and noise at normal levels for a 3.5-inch hard drive.

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