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Silver 3.5 inch SATA hard drive bare drive no enclosure

Western Digital

Western Digital WD3200AAKS 320GB 7200 RPM 16MB Cache SATA 3.5" internal hard drive

SKU CH-VB1F-2QBV6 MPN WD3200AAKS

A 320 GB 3.5-inch desktop hard drive spinning at 7200 RPM with 16 MB cache and a SATA 3.0 Gb/s interface

  • Total capacity320 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory16 MB
  • 320 GB capacity stores large media libraries
  • 7200 RPM spindle speed delivers quick data access
  • 16 MB cache buffers bursts for smoother throughput
  • SATA 3.0 Gb/s interface fits standard desktop motherboards
  • IntelliSeek and SecurePark reduce noise and protect heads

320 GB 7200 RPM desktop hard drive

This 3.5-inch SATA drive delivers 320 GB of storage with a 7200 RPM spindle and 16 MB cache for everyday desktop workloads. It suits builders restoring older systems or adding a secondary volume where modest capacity is sufficient. The bare-drive package includes the mechanism only, ready for installation in a standard drive bay.

Ideal for legacy upgrades and basic storage

Users repairing or expanding SATA-based PCs from the 3 Gb/s era will find the interface and form factor a direct match. Buyers who need more capacity, lower access times or a 6 Gb/s interface should consider other options. The drive has been erased to a DoD 5220.22 M standard and tested functional, though up to 25 bad sectors may be present.

8.9 ms average seek time

The quoted 8.9 ms average seek time, combined with 4.2 ms latency and 10.9 ms average write time, defines the responsiveness you can expect from this mechanical drive. Those figures determine whether the performance envelope meets the needs of the intended application.

How it compares

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

Price $78.99
Cheaper than about 59% of the 4,938 comparable items (median $107.99).
Total capacity 320 GB
Lower than about 87% of the 2,372 comparable items (median 2 TB).
Price per TB $246.84 per TB
Pricier than about 82% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWestern Digital
Product lineBlue
Model nameWD3200AAKS
Total capacity320 GB
Performance
Rotational speed7,200 RPM
Average seek time8.9 ms
Mean write time10.9 ms
Mean latency4.2 ms
Storage
Cache memory16 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.45 kg
Package size147 × 102 × 23 mm

Questions about this item

What does the bare-drive packaging mean — do I need to buy cables or brackets separately?

The drive ships as a bare unit without SATA data or power cables, mounting screws or a bracket; you will need to supply those yourself.

Is the 320 GB capacity the only option in this WD Blue line or are there larger versions?

This specific model is the 320 GB variant; other capacities exist in the Blue series but they carry different model numbers.

How does the 7200 RPM spindle speed and 16 MB cache translate to everyday desktop use?

The 7200 RPM rotation and 16 MB cache deliver responsive boot times and smooth file transfers for typical office and media workloads.

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