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Silver 3.5 inch SATA hard drive rectangular metal casing

Western Digital

Western Digital WD20EARZ 2TB 3.5" 5400 RPM 64MB SATA internal hard drive

SKU CH-0MF1-0YGJ9 MPN WD20EARZ

A 2TB 3.5" desktop hard drive spinning at 5400 RPM with 64MB cache and a SATA 6.0Gb/s interface for everyday computing

  • Total capacity2 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Flash memory typeComputer Hardware
  • Rotational speed5,400 RPM
  • Cache memory64 MB

Model 2TB 64MB Cache

  • 2TB capacity stores large media libraries and backups
  • 5400 RPM spindle speed keeps power draw low for everyday desktop use
  • 64MB cache buffers frequent file operations for smoother responsiveness
  • SATA 6.0Gb/s interface connects directly to standard motherboard ports
  • NoTouch Ramp Load technology prevents head-to-disk contact for reduced wear

WD Blue 2TB SATA desktop drive

The Western Digital WD20EARZ is a 3.5 inch internal hard drive with a 2TB capacity. It connects through a SATA 6.0Gb/s interface and spins at 5400 RPM with a 64MB cache. The drive is built for everyday desktop computing tasks.

Suits general storage needs not high speed workloads

This drive fits users who need affordable bulk storage for documents, media files and backups in a standard desktop PC. It is not suited for applications that demand sustained high throughput or low latency such as video editing scratch disks or database servers.

5400 RPM spindle speed defines responsiveness

The single specification that determines suitability is the 5400 RPM rotational speed. It governs the drive's random access performance and sustained transfer rates making it appropriate for capacity focused roles rather than performance critical ones.

How it compares

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

Price $126.99
Pricier than about 55% of the 4,938 comparable items (median $107.99).
Total capacity 2 TB
Typical for this category: the median of 2,372 items is 2 TB.
Price per TB $63.50 per TB
Typical for this category: the median of 2,365 items is $62.21 per TB.

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Specifications

Product
Brand nameWD
Product lineBlue
Model nameWD20EARZ
Total capacity2 TB
Recommended useFor Daily Computing
Performance
Rotational speed5,400 RPM
Storage
Flash memory typeComputer Hardware
Cache memory64 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.6 mm
Maximum length147 mm
Shipping weight0.73 kg
Package size152 × 102 × 25 mm

Other versions of this model

3 more in the same range

Questions about this item

How can I confirm the WD20EARZ is running at 5400 RPM after installation?

Check the rotational speed reported in your BIOS or UEFI, or use a tool such as CrystalDiskInfo to verify the 5400 RPM figure matches the drive specifications.

Does the WD20EARZ retail box include a SATA data cable and mounting screws, or must I buy them separately?

The drive itself is supplied in the box; cables and screws are not included and must be sourced from your case or motherboard accessories.

Which cache size should I choose for everyday desktop use with the WD Blue 2TB drive?

This model provides a 64MB cache, which is the only cache option available for the 2TB capacity in the WD Blue series.

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