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WD Red Plus 4TB WD40EFPX vs WD Red Pro 4TB WD4005FFBX

Researched, not hands-on tested.How we review ›

all judged against NAS hard drives at a similar price

The WD Red Pro 4TB WD4005FFBX scores 7.9/10 overall, ahead of the WD Red Plus 4TB WD40EFPX at 6.9/10.

The WD Red Plus 4TB WD40EFPX leads on noise and power.

The WD Red Pro 4TB WD4005FFBX leads on reliability ratings, warranty and performance.

They score the same on recording technology.

The biggest difference is noise and power, where the WD Red Plus 4TB WD40EFPX scores 8/10 to the WD Red Pro 4TB WD4005FFBX's 4/10.

WD Red Plus Internal NAS HDD 3.5", 4TB, model WD40EFPX

WD Red Plus 4TB WD40EFPX

6.9/10verdict: wait for deal

The WD Red Plus 4TB (WD40EFPX) is for home and small-office NAS owners filling up to eight bays who want a CMR drive. Its 5,400 rpm spindle and low rated noise and power suit a NAS that sits in a living space or runs around the clock. Buyers whose needs go beyond its 180MB/s transfer rate, 180TB/year workload rating or three-year warranty should look elsewhere.

Typically about £208.99 in the UK when we researched itCheck price at Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

WD Red Pro 4TB NAS Hard Drive (WD4005FFBX)

WD Red Pro 4TB WD4005FFBX

7.9/10verdict: buy

The WD Red Pro 4TB suits people building a multi-bay NAS or RAID array who want a drive rated for heavy workloads. It lists CMR recording, a 5-year warranty and a 550TB/year workload rating. Buyers who want a quiet, low-power drive or included data recovery should look at the trade-offs first.

Typically about £259.99 in the UK when we researched itCheck price at Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

Scores, criterion by criterion

CriterionWeightWD Red Plus 4TB WD40EFPXWD Red Pro 4TB WD4005FFBX
Reliability ratings25%6/109/10
Recording technology20%9/109/10
Warranty20%6/109/10
Performance20%6/107/10
Noise and power15%8/104/10
Overall6.9/107.9/10

Specifications

SpecWD Red Plus 4TB WD40EFPXWD Red Pro 4TB WD4005FFBX
Capacity4TB4TB
Spindle speed54007200 RPM
Cache256MB256MB
Recording (CMR/SMR)CMRCMR
Workload rating180 TB/year550TB/year
MTBF1,000,000 hours2.5 million hours
Rated for baysup to 8 baysUnlimited (RAID-optimized NAS systems with unlimited # of bays; no numeric count)
Warranty3-year limited5 years limited

Strengths and weaknesses

WD Red Plus 4TB WD40EFPX

  • + CMR recording confirmed on WD's datasheet
  • + Rated 23 dBA idle and 27 dBA seek
  • + Low power: 4.7W active, 3.1W idle
  • − Only a 3-year limited warranty
  • − Up to 180MB/s internal transfer rate
  • − Rated for up to 8 bays only

Skip it if:

  • Anyone building a NAS with more than eight bays
  • Buyers wanting a 5-year warranty or included data recovery
  • Users with heavy write workloads beyond 180TB a year
Read the full WD Red Plus 4TB WD40EFPX review ›

WD Red Pro 4TB WD4005FFBX

  • + CMR recording, listed on the spec table
  • + 550TB/year workload and 2.5 million hour MTBF
  • + Five-year limited warranty
  • − 7200 RPM spindle speed; no noise or power figures listed
  • − Data recovery is not included
  • − Rated for up to 217MB/s sustained

Skip it if:

  • Buyers who need a quiet, low-power drive for a bedroom or living room
  • Buyers who expect data recovery to be included in the price
  • Anyone who wants independent speed or noise measurements for this exact model
Read the full WD Red Pro 4TB WD4005FFBX review ›

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