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Silver 3.5 inch SATA hard drive bare unit

Western Digital

Western Digital WD3200AAKX 320GB 7200 RPM 16MB 3.5" SATA internal hard drive

SKU CH-S579-4A1NE MPN WD3200AAKX

320 GB desktop hard drive with 7200 RPM speed, 16 MB cache and SATA 6.0 Gb/s interface for everyday computing

  • Total capacity320 GB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory16 MB

Capacity 320GB

  • 320 GB capacity stores everyday files and applications
  • 7200 RPM spindle speed delivers responsive desktop performance
  • 16 MB cache buffers frequent read and write operations
  • SATA 6.0 Gb/s interface enables fast data transfer rates
  • 5 inch form factor fits standard desktop drive bays

WD Blue 320GB SATA desktop drive

This WD Blue 320GB desktop hard drive uses a 3.5 inch form factor and spins at 7200 RPM with a 16MB cache. It connects through a SATA 6.0Gb/s interface and is sold as a bare drive. The unit is designed for everyday computing tasks in family or business desktop PCs.

Check SATA port and 3.5 inch bay availability

Verify that your motherboard has a free SATA 6.0Gb/s port and that your case includes an open 3.5 inch drive bay with mounting hardware. Ensure your power supply provides a spare SATA power connector. The drive is a bare unit so no cables or brackets are included in the box.

Fits standard desktop builds as primary

The drive installs in any 3.5 inch bay and uses a standard SATA data cable plus SATA power connector. It adds 320GB of mechanical storage for operating system, applications or files without occupying an M.2 slot. The 7200 RPM spindle speed and 16MB cache deliver responsive performance for daily workloads.

How it compares

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

Price $67.99
Cheaper than about 65% 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 $212.47 per TB
Pricier than about 80% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWestern Digital
Product lineBlue
Model nameWD3200AAKX
Total capacity320 GB
Recommended useFor Daily Computing
Performance
Rotational speed7,200 RPM
Mean latency6Gb/s
Storage
Cache memory16 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.45 kg
Package size147 × 102 × 25 mm

Other versions of this model

2 more in the same range

Questions about this item

Does the bare-drive packaging include cables or mounting brackets, or must they be purchased separately?

The drive ships as a bare unit only; SATA data and power cables plus any 3.5" mounting hardware must be sourced separately.

Which capacity and speed combination does the WD3200AAKX represent in the Blue series?

This model is the 320GB capacity with a 7200 RPM spindle and 16MB cache, positioned as the entry desktop option in the Blue lineup.

What does the SATA 6.0Gb/s interface rating mean for actual throughput inside a desktop PC?

The 6.0Gb/s link is the maximum bus speed; real-world sustained transfers are limited by the 7200 RPM platters and 16MB buffer, typically well below the interface ceiling.

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