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Silver 3.5 inch bare SATA hard drive with printed label

Seagate

Seagate ST31500341AS 1.5TB 7200 RPM 32MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-CB23-C8BE2 MPN ST31500341AS

1.5 TB 3.5" desktop drive with 7200 RPM, 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
  • Rotational speed7,200 RPM
  • Cache memory32 MB
  • 5 TB capacity for large desktop storage
  • 7200 RPM spindle speed for responsive data access
  • 32 MB cache to smooth burst workloads
  • SATA 3.0 Gb/s interface for broad motherboard compatibility
  • Second-generation perpendicular recording increases data density

Capacity and interface

This is a 1.5TB 3.5-inch desktop hard drive with a SATA 3.0Gb/s interface and 7200 RPM spindle speed. It uses second-generation perpendicular magnetic recording technology and includes a 32MB cache. The drive is supplied as a bare unit without retail packaging.

Suitable uses and limits

It suits buyers adding bulk storage to older desktops or replacing a failed drive in a system that only supports SATA 3.0Gb/s. It is not for builders who need a current manufacturer warranty, as the product is end-of-sale and carries only a one-year seller warranty. It is also not for users who require a drive with zero bad sectors, since up to 25 may be present.

Firmware revision requirement

The critical specification is the firmware revision: drives with part numbers ending in 138-300 or 138-366 must run revision SD17, SD15 or SD18 and can be upgraded to SD1A. Buyers should verify the revision on the label before installation to avoid known compatibility issues.

How it compares

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

Price $160.99
Pricier than about 62% 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 $107.33 per TB
Pricier than about 64% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineBarraCuda 7200.11
Model nameST31500341AS
Total capacity1.5 TB
Recommended useFor Daily Computing
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)
Shipping weight1.36 kg
Package size305 × 229 × 102 mm

Questions about this item

How does the 1.5TB capacity hold up under continuous write workloads?

The drive uses second-generation perpendicular magnetic recording to reach 1.5TB with fewer moving parts, and the 32MB cache helps buffer sustained transfers over the SATA 3.0Gb/s link.

What temperature or noise level should I expect when the 7200 RPM spindle runs all day?

At 7200 RPM the drive produces typical desktop-class acoustic and thermal output; the SATA interface supports Native Command Queuing to reduce unnecessary head movement.

Does the SATA 3.0Gb/s connector work with my current motherboard and power supply?

Any motherboard with a standard SATA port and a power supply offering a 15-pin SATA power connector will support this 3.5-inch bare drive.

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