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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

  • Total capacity1 TB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory32 MB

Capacity 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.

How it compares

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

Price $189.99
Pricier than about 67% of the 4,938 comparable items (median $107.99).
Total capacity 1 TB
Lower than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $189.99 per TB
Pricier than about 77% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineBarraCuda 7200.12
Model nameST31000528AS
Total capacity1 TB
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Cache memory32 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.6 mm
Maximum length146.99 mm
Shipping weight1.36 kg
Package size305 × 229 × 110 mm

Other versions of this model

4 more in the same range

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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