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Silver rectangular 3.5 inch SATA hard drive with circuit board exposed

Western Digital

Western Digital Blue WD1600AAJS 160GB 7200 RPM 8MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-CZEJ-6SAKJ MPN WD1600AAJS

160 GB 7200 RPM desktop drive 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
  • Flash memory typeDesktop
  • Rotational speed7,200 RPM
  • 160 GB capacity stores everyday files and backups
  • 7200 RPM spindle speed delivers responsive desktop performance
  • 8 MB cache buffers frequent read and write operations
  • SATA 3.0 Gb/s interface connects to standard motherboard ports
  • 5 inch form factor fits typical desktop drive bays

160 GB desktop hard drive

This Western Digital Blue WD1600AAJS is a 160 GB, 7200 RPM desktop drive with 8 MB cache and a SATA 3.0 Gb/s interface. The 3.5 inch form factor fits standard drive bays in older towers or secondary storage arrays. It is sold as a bare drive without cables or brackets. Average seek time is 8.9 ms and average latency is 4.2 ms.

Who this suits and who it does not

This drive suits users needing a direct replacement for a legacy SATA boot or data drive in an older desktop or DVR. It is not for builders who need higher capacity, faster throughput, or a modern SATA 6 Gb/s interface for current platforms.

Deciding specification — SATA 3.0 Gb/s interface

The SATA 3.0 Gb/s interface is the single specification that decides compatibility. Verify that the host controller or motherboard supports this generation; a SATA 6 Gb/s port will negotiate down, but an older SATA 1.5 Gb/s port will limit throughput.

How it compares

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

Price $40.99
Cheaper than about 85% 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 $256.19 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 nameWD1600AAJS
Total capacity160 GB
Recommended useFor Daily Computing
Performance
Rotational speed7,200 RPM
Average seek time8.9 ms
Mean latency4.2 ms
Storage
Flash memory typeDesktop
Cache memory8 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.91 kg
Package size305 × 229 × 102 mm

Questions about this item

How do I install the WD1600AAJS 3.5" SATA 3.0Gb/s drive and which step do people often miss?

Mount the 3.5" drive in a desktop bay, connect a SATA data cable to the motherboard and a SATA power connector from the PSU; the step often missed is setting the BIOS to AHCI mode for the SATA 3.0Gb/s interface.

What maintenance or replacement will the WD1600AAJS 7200 RPM 8MB cache drive need later?

No routine maintenance is required; the mechanical 7200 RPM motor and bearings will eventually wear, so plan to replace the drive when SMART reallocated-sector counts rise or seek times exceed the 8.9ms spec.

What limit appears first on the WD1600AAJS 160GB drive under sustained use?

The 8MB cache fills quickly during long sequential writes, forcing the 7200 RPM platters to throttle to the native 4.2ms latency and 8.9ms seek time, which becomes the throughput bottleneck.

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