Western Digital 4TB WD Red Plus NAS SATA HDD, 3.5" Internal Hard Drive HDD, 5400 RPM, 256MB Cache, CMR - WD40EFPX
Western Digital 4TB WD Red Plus NAS SATA HDD, 3.5" Internal Hard Drive HDD, 5400 RPM, 256MB Cache, CMR - WD40EFPX
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Western Digital

Western Digital 4TB WD Red Plus NAS SATA HDD, 3.5" Internal Hard Drive HDD, 5400 RPM, 256MB Cache, CMR - WD40EFPX

234 ratings
Western Digital 4TB WD Red Plus NAS SATA HDD, 3.5" Internal Hard Drive HDD, 5400 RPM, 256MB Cache, CMR - WD40EFPXWestern Digital 4TB WD Red Plus NAS SATA HDD 3 5 Internal Hard Drive HDD 5400 RPM 256MB Cache CMR WD40EFPXWestern Digital 8TB WD Red Plus NAS SATA HDD 3 5 Internal Hard Drive HDD 5640 RPM 256MB Cache CMR WD80EFPXWestern Digital WD Red Plus 10TB NAS SATA 3 5 HDD 7200 RPM 256MB Cache CMR WD101EFBXWestern Digital 6TB WD Red Plus NAS SATA HDD 3 5 Internal Hard Drive HDD 5400 RPM 256MB Cache CMR WD60EFPXWestern Digital 12TB WD Red Plus NAS SATA HDD 3 5 Internal Hard Drive HDD 7200 RPM 512MB Cache CMR WD120EFGXWestern Digital 10TB WD Red Plus NAS SATA HDD 3 5 Internal Hard Drive HDD 7200 RPM 512MB Cache CMR WD100EFGX
Hard Drive Capacity4 TB-Out of stock
Cache Memory256 MB-Out of stock

Key item features

  • Ideal Usage: Perfect for home offices, power users, small to medium businesses, and consumer/commercial NAS systems.
  • RAID Optimization: Designed for RAID-optimized NAS systems with up to 8 bays.
  • High Workload Rating: Rated for 180TB/year workload and 1 million hours MTBF.
  • Power Efficiency: Delivers increased power efficiency for mid-sized RAID-optimized NAS systems.
  • Speed and Capacity: Provides the speed and capacity needed to store, protect, and share growing amounts of data.
  • Internal HDD: 3.5" internal hard drive with 5400 RPM and 256MB cache.
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Specs

Disk rotation speed, 5640 rpmHard drive form factor, 3.5Interface type, SATA, USBRec. use, NASModel, WD40EFPXHD capacity, 4 TB

About this item

Product details

WD Red Plus internal HDDs are designed to handle workloads for power users and small to medium business NAS environments. WD Red Plus drives deliver the speed and capacity required to store, protect and share growing amounts of data in mid-sized RAID-optimized NAS systems with increased power efficiency.

Compatibility

RAID-optimized NAS systems with up to 8 bays

Product Features

  • Ideal for Home Offices, Power Users, Small to Medium Businesses and Consumer/Commercial NAS systems
  • For RAID-optimized NAS systems with up to 8 bays
  • Rated for 180TB/year workload1 and 1M hours MTBF
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Disk rotation speed

5640 rpm

Hard drive form factor

3.5

Interface type

SATA, USB

Rec. use

NAS

Customer ratings & reviews

4.4 out of 5 stars
stars
234 ratings104 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars76% (177)
  2. 4 stars8% (19)
  3. 3 stars4% (9)
  4. 2 stars2% (4)
  5. 1 star11% (25)

Reviews summary

Pros

  • : Made with reliable materials that last.
  • : Delivers good speed and reliability.
  • : The drive provides a large amount of usable space.
  • : Setup requires minimal effort.
  • : Offers affordable options compared to similar products.

Cons

  • : Produces noticeable sound during use.
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Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
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Showing 1-3 of 104 reviews

Jun 2, 2026
Reviewer name: chilliewillie
Top Reviewer
Item details
Hard drive capacity: 4
Cache memory: 256
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

These WD Red Drives are the best

These WD Red Drives are the best. They are fast and lasts a long time.

Helpful?3CDDSNUL59CK1301028309
Jan 5, 2026
Reviewer name: Joeydo1973
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Beautiful Drive at a great price

Excellent Hard Drive for my NAS. It was recognized right away in my UGreen DH2300 and work flawlessly

Review from Western Digital
Helpful?3CDDSNUL59CK1301028309
Oct 29, 2026
Reviewer name: Greg
Item details
Hard drive capacity: 8 TB
Cache memory: 256 MB
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

First one arrived DOA, return process was pretty straightforward. Got the new one installed in my NAS and so far it has worked great

Helpful?3CDDSNUL59CK1301028309
Current price is $199.00
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