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Western Digital 3TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD30EFRX
Western Digital

Western Digital 3TB WD Red Plus NAS Internal Hard Drive HDD (WD30EFRX)

Status: Western Digital 3TB WD Red Plus NAS Internal…: Unavailable on Amazon as of . SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

Bottom line: The Western Digital 3TB WD Red Plus NAS Internal Hard Drive HDD: CMR recording, not SMR — predictable RAID rebuild writes; main trade-off: 5400RPM class trails 7200RPM drives on random access.

Unavailable on Amazon as of

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: Western Digital 2TB WD Red Plus NAS Internal… — $209.00 on Amazon as of 2026-10-20 22:15 UTC (price may vary).

Similar: Western Digital 12TB WD Red Plus NAS Internal… — $697.10 on Amazon as of 2026-10-20 22:15 UTC (price may vary).

Similar: Seagate 4TB IronWolf NAS SATA Hard Drive 6Gb/s… — $184.95 on Amazon as of 2026-10-21 04:16 UTC (price may vary).

Mike Perry — Hardware researcher since 2014. For NAS and home-server hardware, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ CMR recording, not SMR — predictable RAID rebuild writes
  • ✓ NASware firmware prevents drop-outs in Synology/QNAP/unRAID bays
  • ✓ Rated for 180 TB/yr workload, well above desktop-drive duty
  • ✓ 5400RPM class runs cooler and quieter in stacked multi-bay cases

Cons

  • ✗ 5400RPM class trails 7200RPM drives on random access
  • ✗ Validated only to 8 bays — not for larger enterprise chassis
  • ✗ 3-year warranty vs 5 years on WD Red Pro and IronWolf Pro
  • ✗ 64MB cache is small next to 256MB on current-gen NAS drives

Manufacturer description

The WD Red Plus WD30EFRX gives your NAS 3TB of CMR storage built for the 24x7 duty cycle that desktop drives were never designed to survive. Western Digital's NASware firmware handles the compatibility and error-recovery behavior multi-bay enclosures expect, so RAID rebuilds on ZFS, Synology, QNAP, and unRAID arrays complete without the drive dropping out mid-parity-check. The 5400RPM performance class keeps heat and acoustics down in a stacked bay, and the 64MB cache plus SATA 6 Gb/s interface covers the sequential throughput a gigabit or 2.5GbE share will actually use. CMR recording is the…

SpecPicks Verdict

SpecPicks scored Western Digital 3TB WD Red Plus NAS Internal Hard Drive HDD using a rating × review-volume × price-fit model applied to published specs and reviews across the nas & home servers category. Western Digital's nas & home servers lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for nas & home servers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Is the WD30EFRX CMR or SMR?

CMR. This model is part of the WD Red Plus line specifically because it uses CMR technology, separating it from the standard WD Red line that uses SMR. Confirm by the WD30EFRX model number — some units still ship in transitional WD Red labeling but are the CMR version.

How many drive bays does it support?

Western Digital builds and tests WD Red Plus for NAS systems up to 8 bays. The wider WD Red Plus family spans 1TB to 14TB capacities across that same 8-bay support envelope.

Will it survive running 24/7?

Yes — it is specified for small and medium business NAS systems in a 24x7 environment, with a supported workload rate up to 180 TB per year. Workload rate is annualized user data transferred to and from the drive.

What warranty does it come with?

A 3-year limited warranty from Western Digital. Check the product listing for current terms and regional coverage before you buy.

Is 5400RPM fast enough for a home NAS?

For file sharing, archiving, and media streaming over gigabit or 2.5GbE, yes — the SATA 6 Gb/s interface and 64MB cache cover the sequential throughput those links can carry. Random-heavy workloads like VM datastores benefit more from a 7200RPM drive.

Key Features

  • Available in capacities ranging from 1-14TB with support for up to 8 bays
  • 5400RPM performance class
  • Supports up to 180 TB/yr workload rate*| * Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours))
  • NASware firmware for compatibility
  • Small or medium business NAS systems in a 24x7 environment
  • 3-year limited warranty

Full Specifications

BrandWestern Digital
ColorRed
Model NameRed
Read Speed147 megabytes_per_second
Unit Count1 Count
Form Factor3.5-inch
Model NumberWD30EFRX
Built-In MediaHard Drive
Hard-Drive Size3 TB
Mfr Part NumberWD30EFAX
Number of Items1
Special FeatureData Recovery Service
Item Part NumberWD30EFRX
Hardware PlatformPC; Mac
Installation TypeInternal Hard Drive
Compatible DevicesNASware 3.0 firmware (PC; Mac )
Data Transfer Rate215 megabits_per_second
Enclosure MaterialAluminum
Additional FeaturesData Recovery Service
Hard Disk InterfaceSerial ATA-600
Full listing titleWestern Digital 3TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD30EFRX

Ready to buy?

Amazon shows no buyable offer for Western Digital 3TB WD Red Plus NAS Internal… at the last check. A similar in-stock product is Western Digital 2TB WD Red Plus NAS Internal…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $209.00

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