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Silver 3.5 inch bare SATA hard drive with green circuit board visible

Seagate

Seagate ST3160811AS 160GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-E3X6-6V0HM MPN ST3160811AS

A 160 GB 3.5-inch desktop drive spinning at 7200 RPM with 8 MB cache and SATA 3.0Gb/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 bursts for smoother data access
  • SATA 3.0 Gb/s interface connects to standard motherboard ports
  • Native command queuing optimises request order for efficient multitasking

Seagate BarraCuda 7200.9 160GB SATA drive

The Seagate ST3160811AS is a 3.5-inch desktop internal hard drive with 160GB capacity. It spins at 7200 RPM and includes 8MB cache on a SATA 3.0Gb/s interface. The bare drive suits system integrators and repair technicians replacing a legacy boot or storage drive.

Suits legacy SATA builds.

This drive fits older desktops and appliances that require a 3.5-inch SATA 3.0Gb/s disk with modest capacity. It supports native command queuing and offers 4.16ms average latency. Buyers who want more storage or faster transfer rates should look at larger or newer interface drives.

160GB capacity decides fit

The single specification that decides whether this is the right part is the 160GB capacity. It determines how much operating system, application and user data the drive can hold. Verify that this capacity meets the target system's storage requirement 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 $39.99
Cheaper than about 86% 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 $249.94 per TB
Pricier than about 82% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineBarraCuda 7200.9
Model nameST3160811AS
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 weight0.27 kg
Package size146 × 102 × 25 mm

Questions about this item

Does my motherboard need a SATA 3.0Gb/s port to use this 3.5" 160GB drive?

Yes, the drive connects through a standard SATA 3.0Gb/s interface, so the board must provide a matching SATA data connector and a SATA power lead from the PSU.

Will this 7200 RPM BarraCuda 7200.9 work on an older board that only supports SATA 1.5Gb/s?

The SATA 3.0Gb/s interface is backward compatible with 1.5Gb/s controllers, so the drive will function, though sustained transfer rates will be limited to the slower link speed.

How can I confirm the drive is operating correctly after installation?

The BIOS should detect the ST3160811AS with its full 160GB capacity, and SMART tools will report the drive spinning at 7200 RPM with NCQ active.

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