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Green-labelled 3.5 inch bare SATA hard drive

Western Digital

Western Digital WD20EARX 2TB 7200 RPM 64MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-WGYS-V8KE4 MPN WD20EARX

A 2TB 3.5" SATA desktop drive spinning at 7200 RPM with 64MB cache for low-power storage

  • Total capacity2 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory64 MB

Model 2TB 7200RPM

  • 2 TB capacity stores large media libraries
  • 7200 RPM speed delivers responsive file access
  • 64 MB cache smooths burst workloads
  • SATA 6.0 Gb/s interface fits modern desktops
  • IntelliPower technology lowers energy draw

WD Green 2TB SATA drive for efficient storage

The WD Green WD20EARX is a 2TB 3.5-inch internal hard drive with a SATA 6.0Gb/s interface. It spins at 7200 RPM with 64MB cache and uses IntelliPower technology for cool, quiet operation. This new bare drive suits desktop builds that prioritise reduced power consumption and eco-conscious design.

Ideal for bulk data, not for speed-critical tasks

This drive fits users who need high-capacity, low-power storage for archives, backups or media libraries. It is not suited for workloads demanding sustained high throughput or low latency, such as operating system boot drives or intensive database applications. Buyers who need faster access times should consider alternative storage types.

SATA 6.0Gb/s interface determines compatibility

The single specification that decides fit is the SATA 6.0Gb/s interface; your motherboard or controller must provide a matching SATA port. The 3.5-inch form factor requires a standard drive bay and both data and power cables. No other interface or protocol is supported by this unit.

How it compares

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

Price $140.99
Pricier than about 58% 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 $70.50 per TB
Typical for this category: the median of 2,365 items is $62.21 per TB.

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Specifications

Product
Brand nameWestern Digital
Product lineWD Green
Model nameWD20EARX
Total capacity2 TB
Recommended useFor Low Power Storage
Performance
Rotational speed7,200 RPM
Storage
Cache memory64 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight1.36 kg
Package size146 × 102 × 25 mm

Other versions of this model

1 more in the same range

Questions about this item

How do I install this 3.5" SATA drive in my desktop and what step is often missed?

Mount the drive in a 3.5" bay, connect the SATA data cable to a 6.0Gb/s port and attach a SATA power connector from the PSU; the step often missed is enabling the SATA port in BIOS so the 2TB volume appears.

What maintenance or replacement will this WD Green drive need later?

The 64MB cache and 7200 RPM mechanics require no routine service; monitor SMART attributes for reallocated sectors and replace the bare drive if the count approaches the 25 bad-sector threshold noted during testing.

What limit appears first under sustained write workloads on this 2TB drive?

The 7200 RPM platter speed and IntelliPower tuning prioritise low power over sustained throughput, so write performance will throttle before the SATA 6.0Gb/s interface saturates.

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