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Silver 3.5 inch bare SATA hard drive with exposed circuit board

Seagate

Seagate ST3160812AS 160GB 7200 RPM 8MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-NN9G-Y670S MPN ST3160812AS

160 GB desktop hard drive spinning at 7200 RPM with 8 MB cache and SATA 3.0 Gb/s interface

  • Total capacity160 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory8 MB
  • 160 GB capacity stores your operating system and everyday files
  • 7200 RPM spindle speed delivers responsive desktop performance
  • 8 MB cache buffers frequent read and write operations
  • SATA 3.0 Gb/s interface with NCQ support enables efficient command handling
  • 3-D Defense System with 63 Gs operating shock protects data during use

Capacity and interface

This 160 GB desktop drive uses a SATA 3.0 Gb/s interface and spins at 7200 RPM with an 8 MB cache. It suits builders who need a basic mechanical drive for legacy systems or secondary storage. Buyers who want more storage or solid-state speed will need a different product.

Thermals and power

The 3-D Defense System and 63 Gs operating shock rating protect the mechanism during normal desktop use. Average latency is 4.16 ms. No acoustic or power-draw figures are supplied, so specific thermal or noise expectations cannot be stated.

Bundled impact

The drive ships as a bare unit without cables, mounting brackets or software utilities. Installation therefore requires a separate SATA data cable, power connector and 3.5" bay hardware. The five-year limited warranty covers the drive itself only.

How it compares

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

Price $53.99
Cheaper than about 75% of the 4,938 comparable items (median $107.99).
Total capacity 160 GB
Lower than about 94% of the 2,372 comparable items (median 2 TB).
Price per TB $337.44 per TB
Pricier than about 86% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineBarraCuda 7200.9
Model nameST3160812AS
Total capacity160 GB
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Cache memory8 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.68 kg
Package size203 × 152 × 51 mm

Questions about this item

How do I install this 3.5" SATA drive and what step is often missed?

Mount the drive in a 3.5" bay, connect the SATA data and power cables, then enable the SATA port in BIOS so the 160GB volume appears.

What maintenance or replacement will this BarraCuda 7200.9 need over time?

No scheduled maintenance is required; the 8MB cache and 3-D Defense System protect the platters, so replacement only occurs if the drive fails.

Which limit appears first during sustained use on this 7200 RPM model?

The SATA 3.0Gb/s interface caps sustained throughput before the 7200 RPM platters reach their maximum transfer rate.

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