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Silver 3.5 inch bare hard drive with green circuit board visible

Western Digital

Western Digital RE3 WD7502ABYS 750GB 7200 RPM 32MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-DF5S-XXZ2T MPN WD7502ABYS

A 750 GB desktop drive spins at 7200 RPM with 32 MB cache on a SATA 3.0 Gb/s interface

  • Total capacity750 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory32 MB
  • 7200 RPM spindle speed for responsive desktop performance
  • 32 MB cache buffers bursts for smoother multitasking
  • SATA 3.0 Gb/s interface fits standard motherboards
  • 750 GB capacity stores large media libraries
  • 2 ms average latency reduces access delays

Capacity and interface

This Western Digital RE3 drive delivers 750GB of storage on a SATA 3.0Gb/s connection. It spins at 7200 RPM with a 32MB cache and fits a standard 3.5-inch bay. The unit is supplied as a bare drive without cables or brackets.

Enterprise workloads versus consumer silence

The RE3 series targets always-on servers, RAID arrays and workstations that prioritise sustained throughput over acoustic comfort. Buyers who need a quiet desktop drive for occasional backups or media playback will find the firmware and vibration profile unsuitable for that environment.

DoD-compliant erase status

Each drive has been erased to the DoD 5220.22 standard and verified functional, though up to 50 bad sectors may be present. The media arrives unformatted and unpartitioned, so the installer must initialise the volume before any data can be written.

How it compares

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

Price $90.99
Cheaper than about 55% of the 4,938 comparable items (median $107.99).
Total capacity 750 GB
Lower than about 70% of the 2,372 comparable items (median 2 TB).
Price per TB $121.32 per TB
Pricier than about 67% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWestern Digital
Product lineRE3
Model nameWD7502ABYS
Total capacity750 GB
Performance
Rotational speed7,200 RPM
Mean latency4.2 ms
Storage
Cache memory32 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight1.13 kg
Package size147 × 102 × 26 mm

Questions about this item

Will the SATA 3.0Gb/s interface work with my older SATA 1.5Gb/s motherboard?

Yes, the SATA 3.0Gb/s interface is backward compatible with SATA 1.5Gb/s controllers, so the drive will operate at the slower speed on older motherboards.

How can I verify the 7200 RPM spindle speed is running correctly after installation?

Use SMART monitoring software to check the spindle speed attribute; it should report 7200 RPM during operation.

Does the bare drive include mounting screws or a SATA data cable?

No, the bare drive packaging contains only the 3.5 inch hard drive; mounting screws and SATA data cables must be purchased separately.

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