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WD Red 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD40EFRX

Ships from United States.

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  • Specifically designed for use in NAS systems with up to 8 bays
  • Supports up to 180TB/yr workload rate
  • NASware firmware for compatibility
  • 3-year limited warranty
  • Small and home office NAS systems in a 24x7 environment

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the Western Digital WD40EFRX

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Standard Return Policy.
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Drive has been in service now and working fine 4/5/2020 1:07:27 PM

Pros: It is a NAS drive not for gaming but great for storage and retrieval
I have found WD drives to be very good

Cons: none

Overall Review: Geared for my NSA purposes and it was a good price.

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Ownership: 1 month to 1 year
Verified Owner
5/ 5
Good drive as expected 4/3/2020 8:40:41 AM

Pros: I haven't tested power usage, but I have 3 Red NAS drives on an unraid array. The drives perform around 135MB/sec natively, but with unraid's poor performance anyways I can't even use this drive's full performance. After 2 or 3 weeks for the last drive and a few months for the other 2 I haven't had any issues.

Cons: The drive isn't as fast as some of my enterprise seagates or enterprise western digital if you're into one brand or the other, but I got this drive with the intention of a high capacity archival array.

Overall Review: As long as the price is right I would buy again. Many times there are enterprise level drives for a similar cost if that's the case I would always opt for the enterprise level.

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Anonymous
Ownership: 1 day to 1 week
Verified Owner
5/ 5
Confused 4/2/2020 12:14:59 PM

Overall Review: All i was looking for was an Sata SSD and when i seen SATA in this deal i just bought it thinking it was an SSD but, here we are! haha

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Anonymous
Ownership: 1 month to 1 year
Verified Owner
5/ 5
All good 4/1/2020 8:26:28 AM

Overall Review: Got 4 in a NAS all works

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Ownership: 1 week to 1 month
Verified Owner
3/ 5
Fingers crossed 3/31/2020 12:09:44 PM

Pros: - Affordable
- Silent
- Low power consumption
- Great for RAID 5 volumes

Cons: - Slow performance
- Somewhat unreliable (see review)

Overall Review: Bought 4 of those in 2013 to setup a RAID 5 volume on my file server (8.2 TB total capacity). So far, 2 of 'em died. One in 2017 (replaced with 5 year warranty), the other in March 2020. I bought this to replace it.

Both 2017 and this drive have a newer revision, so the unreliability might be resolved...

Keep in mind the WD Red 3TB has had major unreliability issues in the past, only time will tell if they fixed the issue. If still under warranty, WD customer service is excellent.

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Ownership: 1 week to 1 month
Verified Owner
5/ 5
Writes data 50% faster than my old commercial drive 3/30/2020 8:28:54 AM

Pros: Both the old and the new drive were low-level formatted for 128K allocation units, but the old Seagate commercial drive only takes disk writes at 80MB/s, while the new Western Digital NAS drive takes them at 120MB/s. Quite the impressive difference considering the Seagate is a 4TB 5400 RPM with 256M cache, and the WD is a 6TB 5400 RPM NAS drive with 256M cache. Clearly there is more to the firmware differences between the two than might be obvious from the specs on the drives.

Cons: - None - I got mine on a really good sale

Overall Review: Highly recommended for busy home computers whose drives tend to spin 24/7 with open source project builds. :)

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Anonymous
Ownership: 1 month to 1 year
Verified Owner
5/ 5
More storage for my NAS 3/26/2020 7:56:30 AM

Overall Review: - Working fine in my Synology NAS for >6 months
- No complaints

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Ownership: 1 week to 1 month
Verified Owner
5/ 5
Great pricing, fast shipping, great product 3/20/2020 6:07:37 PM

Pros: Tons of space, reliable reputation. Good, competitive pricing.

Overall Review: I ordered this drive to upgrade my Tivo Roamio. I received it a day earlier than estimated. It was shipped in appropriate packaging. I ran WD Lifeguard diagnostics and all was perfect with the drive. I upgraded the Tivo and now have over 1280 hours of High Def recording capability. A great buying experience!

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