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Silver 3.5 inch bare hard drive with green circuit board and model label

Seagate

Seagate BarraCuda 7200.12 ST31000528AS 1TB 7200 RPM 32MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-QDBF-P6GEG MPN ST31000528AS

A 1 TB 3.5" desktop hard drive spinning at 7200 RPM with 32 MB cache and a SATA 3.0 Gb/s interface

  • PackagingBare Drive
  • Capacity1TB
  • RPM7200 RPM
  • InterfaceSATA 3.0Gb/s
  • Cache32MB
  • Average Latency4.16ms

Options 1TB

  • 1TB capacity for large file storage
  • 7200 RPM spindle speed for responsive data access
  • 32MB cache buffer improves read and write performance
  • SATA 3.0Gb/s interface supports fast transfer rates
  • DoD 5220.22 M compliant erasure ensures data sanitisation

Capacity and interface

This Seagate BarraCuda 7200.12 drive provides 1TB of storage on a 3.5 inch form factor with a SATA 3.0Gb/s interface. It spins at 7200 RPM and includes 32MB of cache for desktop workloads.

Suitable uses and limits

The drive suits builders adding bulk storage to a desktop system that accepts a SATA 3.0Gb/s connection and a 26.10mm drive height. Buyers who need a drive without any bad sectors or who require a larger cache should look elsewhere.

Deciding specification

The SATA 3.0Gb/s interface is the single specification that determines whether this drive will connect to your motherboard or controller. Verify that your system supports this interface before purchase.

Highlights

  • 1TB capacity for large file storage
  • 7200 RPM spindle speed for responsive data access
  • 32MB cache buffer improves read and write performance
  • SATA 3.0Gb/s interface supports fast transfer rates
  • DoD 5220.22 M compliant erasure ensures data sanitisation

Specifications

BrandSeagate
SeriesBarraCuda 7200.12
ModelST31000528AS
PackagingBare Drive
Capacity1TB
RPM7200 RPM
InterfaceSATA 3.0Gb/s
Cache32MB
Average Latency4.16ms
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.60mm
Length (maximum)146.99mm
FeaturesErased (DoD 5220.22 M Compliant) and tested good (Not formatted, partitioned, or allocated). Sold as used and in working condition. There may be drives that have up to 25 bad sectors. There may be writing or markings on the drive or the drive may vary slightly (color and/or label may differ) from picture but the model numbers will be the same.
Shipping weight1.36 kg
Package size305 × 229 × 110 mm

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Questions about this item

How long before the 7200 RPM spindle and 32MB cache hit their sustained throughput ceiling?

The 7200 RPM spindle and 32MB cache deliver consistent desktop performance; sustained throughput is limited by the SATA 3.0Gb/s interface and the drive's mechanical latency of 4.16ms.

What noise, heat or power profile should I expect when the 3.5" drive runs all day?

The 3.5" form factor at 7200 RPM produces typical desktop drive acoustics and heat; adequate case airflow keeps temperatures in normal operating range during continuous use.

Which existing SATA port and power connector must my system already have for this bare drive to work?

Your motherboard needs a free SATA 3.0Gb/s port and the power supply must provide a standard SATA power connector for the bare drive to operate.

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