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Western Digital WD20EFPX

WD Red Plus 2TB WD20EFPX 3.5-inch NAS hard drive shown at an angle on a white background

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WD Red Plus 2TB (WD20EFPX)

Capacity:
2TB
Interface:
SATA
Form factor:
3.5-inch internal hard drive

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Package details

Model: WD20EFPX

The 2TB capacity point in the Red Plus line: 5400 RPM, 64MB cache, 175MB/s class transfer rate.

Condition:
Confirm new or reconditioned on the listing
Quantity:
Confirm package quantity on the listing

Important limit: 5400 RPM with a 64MB cache is the slowest end of the Red Plus line: fine for backups and media streaming, not for heavy multi-user workloads

How many units?

Confirm condition, quantity and included accessories on the retailer’s listing.

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Specifications checked November 5, 2026. Full product details

Size and placement

Size and placement

Dimensions
5.79 x 4 x 1.03 in
Weight
450 g
Manufacturer specifications

Western Digital WD Red Plus 2TB NAS Hard Drive (WD20EFPX)

The 2TB capacity point of Western Digital's Red Plus line: a CMR SATA NAS hard drive tuned with NASware firmware for small RAID-optimized NAS systems, suited to budget two-bay builds and RAID 1 pairs.

Which version should you buy?

Selected package: WD Red Plus 2TB (WD20EFPX).

Selected package

  • WD Red Plus 2TB (WD20EFPX)

    This page

    Model: WD20EFPX

    What differs
    The 2TB capacity point in the Red Plus line: 5400 RPM, 64MB cache, 175MB/s class transfer rate.
    Best for
    Budget two-bay NAS builds and small RAID 1 pairs.

Related models and generations

These are different products. Check their specifications separately.

  • WD Red Plus 8TB (WD80EFPX) Model: WD80EFPX

    The 8TB capacity point: 5640 RPM, 256MB cache, 215MB/s class transfer rate.

    Two- and four-bay NAS builds where 8TB per drive is the sweet spot.

    View WD Red Plus 8TB (WD80EFPX)

Purchase links appear where the exact offer is verified. Confirm the named model, quantity and accessories before ordering.

Watch out

  • WD Red Plus is a separate tier from WD Red (the entry tier) and WD Red Pro (7200 RPM, up to 26 bays); the EFPX part numbers are Red Plus.
  • Some 2TB NAS drives on the market are SMR; WD80EFPX's little sibling WD20EFPX is CMR, and the spec sheet lists CMR for the Red Plus line.

Why people pick it

  • CMR recording in the 2TB class, where many cheaper drives quietly use SMR that stalls RAID rebuilds
  • NASware firmware and a 3-year warranty on a budget capacity point that fits a pair of drives under a NAS budget
  • Low power and heat for 24/7 spinning in a two-bay enclosure

Know before you buy

  • 5400 RPM with a 64MB cache is the slowest end of the Red Plus line: fine for backups and media streaming, not for heavy multi-user workloads
  • 2TB per drive limits growth in a NAS whose bays could hold 8TB or more
  • No Amazon listing is linked from Western Digital's own product page for this model, so buying it means searching for the exact part number

Full specifications

Capacity2TB
InterfaceSATA
Form factor3.5-inch internal hard drive
Recording technologyCMR (Conventional Magnetic Recording), not SMR
Drive speed5400 RPM
Cache size64MB
Transfer rate (maker claim)Up to 175MB/s
Workload rating (maker)180TB/year
Firmware tuningNASware technology for compatibility, performance and reliability in NAS workloads
Designed for24x7 operation in RAID-optimized NAS systems with up to 8 bays
Operating temperature0°C to 65°C
Dimensions5.79 x 4 x 1.03 in
Weight450 g
Warranty3-year limited warranty

From manufacturer documentation, checked November 5, 2026. Spotted an error? Tell us.

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