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Western Digital

Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX

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Availability: Only 2 left in stock, order soon!
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Arrives Sep 8 – Sep 10
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Capacity: 4TB


Style: 256 MB Cache


Features

  • Available in capacities ranging from 1-14TB(1) with support for up to 8 bays | (1) 1MB = 1 million bytes, 1GB = 1 billion bytes, and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.Specific uses: NAS,Business
  • Supports up to 180 TB/yr workload rate(2) | (2) 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)). Workload Rate will vary depending on your hardware and software components and configurations.
  • NASware firmware for compatibility
  • Built for small or medium business NAS systems in a 24/7 environment
  • 3-year limited warranty(3) | (3) MTBF specifications are based on a sample population and are estimated by statistical measurements and acceleration algorithms under typical operating conditions: workload of 90TB/year and drive temperature of 40C. Derating of MTBF will occur above these parameters, up to 65C drive temperature. MTBF does not predict an individual drives reliability and does not constitute a warranty. Not all products may be available in all regions of the world.

Description

Packed with power to handle NAS environments in home offices up to medium- sized businesses, WD Red Plus is ideal for helping protect, archive, and share valuable data in NAS systems with up to 8 bays. WD Red Plus NAS drives give you the flexibility, versatility, and confidence you need for your important home and work files.

Digital Storage Capacity: 4 TB


Hard Disk Interface: Serial ATA-600


Connectivity Technology: SATA


Brand: WD


Special Feature: Portable


Hard Disk Form Factor: 3.5 Inches


Hard Disk Description: Mechanical Hard Disk


Compatible Devices: NAS System


Installation Type: Internal Hard Drive


Color: Red


Digital Storage Capacity: 4 TB


Hard Disk Interface: Serial ATA-600


Connectivity Technology: SATA


Additional Features: Portable


Hard Disk Form Factor: 3.5 Inches


Compatible Devices: NAS System


Hard Disk Rotational Speed: 5400 RPM


Specific Uses For Product: Business, NAS


Read Speed: 150 Megabytes Per Second


Cache Memory Installed Size: 4


Form Factor: 3.5-inch


Hardware Connectivity: SATA 6.0 Gb/s


Hard-Drive Size: 4 TB


Item Weight: 570 Grams


Item Dimensions L x W x Thickness: 5.79"L x 4"W x 1.03"Th


Number of Items: 1


Unit Count: 1.0 Count


Brand: WD


Model Number: WD40EFPX


Hard Disk Description: Mechanical Hard Disk


Built-In Media: Internal Hard Drive


Model Name: Red Plus


Manufacturer: Western Digital Technologies, Inc.


Global Trade Identification Number: 94


UPC: 718037899794


Item Type Name: Internal Hard Drive


Mfr Part Number: WD40EFPX


Warranty Description: 3 years limited warranty


Installation Type: Internal Hard Drive


Color: Red


Enclosure Material: Information Not Available


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 8 – Sep 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great product and fast
Capacity: 10TB Style: 256 MB Cache
I have bought 3 of these over the past 2 years and they are reliable and fast. I would rather pay for a known brand. I can't say that I have ever used their support or had to return one. I have all sorts of brands in servers but would rather have a WD in my servers.
Reviewed in the United States on July 30, 2023 by FrozenOzone
    • It works and it's very quiet
Capacity: 2TB Style: 128 MB Cache
I bought one of these drives in like-new condition from Amazon Warehouse to replace a dead Seagate Pipeline drive in a satellite receiver/DVR. It's only been running for a couple of weeks but I just had to reiterate what most reviews here are stating - it is amazingly quiet and very fast! The original drive made quite a racket because the DVR is always recording but this one is barely noticeable. My only complaint is that the manufacturing date is in July of 2021 - almost 2 years ago - which cuts the warranty significantly. I looked up the warranty status on WD's support website and found that it expires in December of 2024 - only 18 months instead of 3 years as advertised. I don't know what manufacturing date the new ones are shipping with but if the warranty is important to you I would look for the date before opening the anti-static bag it comes in so you can return it unopened if necessary. You can also check the warranty status using the serial number that is printed on the box. ... show more
Reviewed in the United States on June 6, 2023 by G. Thornton
    • Buyer beware
Capacity: 12TB Style: 512 MB Cache
To preface my review, let me just say that I've always considered Western Digital to be my go-to HD manufacturer. I ordered 4 WD Red Plus 12TB drives to replace the current WD 4TB drives in my NAS. First of all, the packaging left much to be desired. The drives were packaged individually in their anti-static sealed bags. However, they were placed in a box, lined up front to back to each other, with no cushioning in between them (individually bubble wrapped would have been nice), pressed against one side of the box with air-pillow packing taking up the remaining room. Because of this, several of the anti-static bags developed friction holes, so the drives were no longer hermetically sealed. Secondly, the carrier dropped off the box (one of many) on my doorstep in torrential rain with no protective covering. Being home, however, the boxes were brought inside within 5 minutes of delivery. The boxes were soaked regardless, and water definitely made its way into the box with the drives. Pair that with the fact that the anti-static bags had holes, and I ended up with slightly wet drives. I took care to dry the first drive thoroughly. After installation into my NAS, the first drive immediately gave a S.M.A.R.T. warning, although non-specific. However, I hoped that since the drive was being "rebuilt" by the NAS system, I was hoping it was an interim condition that would pass once the data rebuilding was complete. Unfortunately, that was not the case. Whether it was a faulty drive, lousy packaging technique, uncaring delivery drivers, or moisture made no difference to me and all four (the remaining 3 drives were untested and still sealed, although not hermetically because of the aforementioned holes) were returned for a refund. I still need drives, but I'll look at different providers and/or manufacturers. ... show more
Reviewed in the United States on July 18, 2023 by Anongw65
    • Better choice than a Green in nearly all use cases.
Capacity: 4TB Style: 256 MB Cache
Honestly these are designed to take the vibration of multiple drives and its CMR and not SMR. this is a better choice than any WD green drive. I'm using it in a Video recorder wher the purples are supposed to be used but those are SMR and not designed for multiple drive vibration dampening so it's still the right choice for a multi disk video recorder. ... show more
Reviewed in the United States on July 11, 2023 by Timothy D. Gray
    • So far so good, quiet and solid.
Capacity: 14TB Style: 512 MB Cache
Bought two OWC units for long term storage onseveral Macs in our small audio and video enterprise. I loaded one of the 4 bay units with four WD Red Plus 14TB drives configured as two Raid 1 mirrored drives. The second unit was configured with just two WD Red Plus 14TB drives also in Raid 1 (two empty bay for future expansion). The assembly was quick after watching one of OWC's installation videos--which probably wasn't needed if like me you've built a computer or assembled an external drive before. As always, follow instructions for installation of both the enclosures and the hard drives. For example, wear a grounding strap when installing the drives. The units powered on immediately and I was able to easily format the units for use with my Mac computers. I chose to forego SoftRaid on either of these units--based on my specific needs at this point, but also because of some of the negative reviews I'd read about the long term cost and reliability of SoftRaid. Both units have run trouble-free for the past month. Besides long term reliability, I was concerned about how quiet the units would be, the amount of vibration I felt (both units sit on desktops relatively close to the computers they are attached to) and operating speed. The units are very quiet and relatively vibration-free. After I assembled the units and attached them to Macs on my network, I had to copy a large amount of data from several Mac and smaller external drives. This took about as much time as I had anticipated and the even with this relatively heavy amount of writing taking place, the units remained quiet and relatively cool. It's too soon to talk about long term reliability but based on reviews of the OWC enclosures and the WD Red Plus (enterprise level hard drives), I am hopeful. I will update my review if my experience suggests otherwise. I think this combination of enclosure and drives provides an effective low cost, reliable long term storage for our video and audio data. ... show more
Reviewed in the United States on March 8, 2023 by Jack Grambo
    • Affordable mass storage
Capacity: 12TB Style: 512 MB Cache
You get a lot of storage for a good price and the noise levels are decent as far as hard drives go. Since it's a CMR drive the speed doesn't fall off a cliff either. I highly recommend it for mass storage.
Reviewed in the United States on July 15, 2023 by Kristoff Lewis

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