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Silver 3.5-inch bare internal hard drive with exposed circuit board

Seagate

Seagate ST31500341ASProduct 1.5TB 7200rpm 32MB 3.5" internal hard drive

SKU CH-3AM1-ZCF45 MPN ST31500341ASProduct

1.5 TB desktop hard drive with 7200 RPM spindle speed, 32 MB cache and SATA 3.0 Gb/s interface

  • Total capacity1.5 TB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Flash memory typeSLC
  • Rotational speed7,200 RPM
  • 5 TB capacity for large media libraries
  • 7200 RPM spindle speed for responsive daily computing
  • 32 MB cache to smooth burst workloads
  • SATA 3.0 Gb/s interface for broad desktop compatibility
  • Perpendicular Magnetic Recording technology enables high areal density

Capacity and Interface

The Seagate Barracuda 7200.11 is a 3.5 inch internal hard drive with a 1.5TB capacity and a SATA 3.0Gb/s interface. It spins at 7200 RPM and includes a 32MB cache for daily computing tasks. The bare drive uses Perpendicular Magnetic Recording technology and supports Native Command Queuing.

Suitability and Limits

This drive suits desktop PCs that need a 1.5TB SATA storage volume for general file storage and operating system use. It is not for systems that require a faster interface than SATA 3.0Gb/s, nor for builds limited to 2.5 inch drive bays. Buyers who need more than 1.5TB of capacity on a single drive should look at larger models.

Deciding Specification

The SATA 3.0Gb/s interface is the single specification that decides compatibility. Your motherboard or controller must provide a standard SATA port operating at 3.0Gb/s to use this drive. Without that port the drive cannot be connected or recognised by the system.

How it compares

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

Price $59.99
Cheaper than about 70% of the 4,938 comparable items (median $107.99).
Total capacity 1.5 TB
Lower than about 55% of the 2,372 comparable items (median 2 TB).
Price per TB $39.99 per TB
Cheaper than about 70% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Model nameST31500341AS
Total capacity1.5 TB
Recommended useFor Daily Computing
Performance
Rotational speed7,200 RPM
Storage
Flash memory typeSLC
Cache memory32 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

Does this drive need a SATA 3.0Gb/s port and a standard 3.5-inch bay with power and data cables?

Yes — it connects through a 7-pin SATA 3.0Gb/s interface and fits a 3.5" bay, so you need a matching motherboard port, a SATA data cable and a SATA power lead from the PSU.

Will the 32MB cache and NCQ on this 7200.11 drive work with an older SATA 1.5Gb/s controller?

The drive is backward-compatible with SATA 1.5Gb/s controllers; NCQ and the 32MB cache remain active, though sustained transfer will be limited to the older bus speed.

How can I verify the 1.5TB Barracuda is running at its rated 7200 RPM and 120 MB/s after installation?

Check the SMART data for a spindle speed of 7200 RPM and run a sequential read benchmark; sustained throughput near 120 MB/s confirms the PMR media and 32MB cache are performing as specified.

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