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Silver 3.5 inch bare hard drive with green circuit board visible

Western Digital

Western Digital RE4 WD2003FYYS 2TB 7200 RPM 64MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-ZSCA-66H6Q MPN WD2003FYYS

2 TB 7200 RPM enterprise SATA drive with 64 MB cache for 24/7 server workloads

  • Total capacity2 TB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory64 MB

Capacity 2TB

  • Enterprise-grade reliability built for 24x7x365 operation
  • Dual processors and dual-stage actuation deliver fast server performance
  • 64 MB cache accelerates heavy application workloads
  • 7200 RPM spindle speed supports high-availability storage deployments
  • 5-inch form factor fits standard enterprise drive bays

Enterprise Storage Drive

The Western Digital RE4 WD2003FYYS is a 2TB 3.5 inch internal hard drive built for enterprise storage environments. It operates at 7200 RPM with a 64MB cache and connects through a SATA 3.0Gb/s interface. This bare drive is designed for heavy application workloads and high-availability deployments requiring durable capacity.

Thermals and Acoustics

Technologically advanced acoustics minimize operational noise during demanding server tasks. Cool drive operation is engineered to protect the hardware and stored data during continuous activity. The drive supports 24X7X365 reliability for constant use scenarios without thermal throttling concerns.

Upgrade Considerations

This drive replaces older enterprise SATA drives where dual processors and dual stage actuation improve performance in RAID arrays and storage appliances. The jump is worth it when 5-year limited warranty coverage and enterprise-class reliability are required for critical data. It is not suited for portable enclosures or laptop upgrade kits due to the 3.5 inch form factor.

How it compares

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

Price $96.99
Typical for this category: the median of 4,938 items is $107.99.
Total capacity 2 TB
Typical for this category: the median of 2,372 items is 2 TB.
Price per TB $48.50 per TB
Cheaper than about 62% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineRE4
Model nameWD2003FYYS
Total capacity2 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Storage
Cache memory64 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.6 mm
Maximum length147 mm
Shipping weight0.86 kg
Package size229 × 152 × 76 mm

Other versions of this model

2 more in the same range

Questions about this item

How do I install the WD2003FYYS 3.5" drive into a server chassis and which step is often missed?

Mount the drive using the 101.60mm width and 147.00mm length screw holes, connect the SATA 3.0Gb/s data and power cables, then set the controller to AHCI mode so the 64MB cache and dual-processor actuation work correctly.

What maintenance or replacement will the RE4 2TB drive need after extended 24X7X365 operation?

The drive has no user-serviceable parts; monitor SMART attributes for reallocated sectors and replace the unit once the threshold is exceeded to maintain data integrity in enterprise storage arrays.

Which limit appears first on the WD2003FYYS during sustained heavy workloads?

The SATA 3.0Gb/s interface bandwidth constrains sustained transfer rates before the 7200 RPM platters or 64MB cache become the bottleneck in continuous enterprise workloads.

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