WD - Red Plus 4TB NAS Internal Hard Drive

WD - Red Plus 4TB NAS Internal Hard Drive

Name: WD - Red Plus 4TB NAS Internal Hard Drive
Brand: WD
SKU: 6670402
Price: 253.49 USD
Availability: InStock
Rating: 4.7 (22 reviews)

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Type: Hard Drives

Model: WD40EFZZ-SPCPAN0

SKU: 6670402

$253.49

Available in stock

WD Red Plus drives are designed to handle workloads of 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.

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Most orders ship within a few business days — you will get tracking by email as soon as it is on the way. Questions about a delivery or a return? Reach our US-based team at info@improvemintfinancial.com or (855) 447-4921.

WD - Red Plus 4TB NAS Internal Hard Drive

$253.49

Highlights

Storage Capacity : 4 TB , see in specifications
Storage Drive Type : HDD , see in specifications
Product Compatibility : Network Attached Storage (NAS), Desktop computers , see in specifications
Form Factor : 3.5 in. , see in specifications
Maximum Read Speed : 180 megabytes per second , see in specifications
Interface(s) : SATA , see in specifications
Rotational Speed : 540 RPM , see in specifications
Usage : Everyday computing, Backup , see in specifications

Specifications

General

Brand	WD
Model Number	WD40EFZZ-SPCPAN0
Product Name	Red Plus 4TB NAS Internal Hard Drive
Product Width	4 inches
Product Height	1.03 inches
Product Weight	19.36 ounces
Warranty - Parts	3 years
Warranty - Labor	3 years

All specifications (19)

Key specs

Cache Buffer Size	128 megabytes
Storage Drive Type	HDD
Interface(s)	SATA
Form Factor	3.5 in.
Storage Capacity	4000 gigabytes

Other

Rotational Speed	5400 revolutions per minute
Maximum Read Speed	180 megabytes per second
Maximum Write Speed	180 megabytes per second
Internal Or External	Internal
Product Compatibility	Network Attached Storage (NAS)
Usage	Everyday computing

Features

Tuned for NAS with NASware Western Digital’s exclusive NASware technology fine tunes drive parameters to match NAS system workloads, which helps increase performance and reliability.
Designed for Continuous Operation Since your NAS system is always on, a reliable drive is essential. WD Red Plus hard drives are designed for systems that operate 24x7, giving users the confidence of knowing they can reliably access their data.
Tested for Dependable Compatibility Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.
Optimized for Lower TCO WD Red Plus drives are engineered to use less power (versus previous models) and run cooler, which reduces operating costs and helps reduce heat in thermally challenged NAS boxes.
Powered for Strong Performance Despite using less power, the drives have plenty of bandwidth to handle the mixed performance demands of multi-drive NAS systems.
Balanced for Increased Reliability Hard drives that are not properly balanced may cause excessive vibration and noise in multi-drive systems, which could reduce hard drive life span and degrade the performance over time. Our enhanced dual-plane balance control technology significantly improves balance and increases overall drive performance and reliability.
Backed by World-Class Support and Warranty As an industry-leading hard drive manufacturer, Western Digital stands behind their NAS storage solutions with the assurance of a 3-year limited warranty and world-class support services for hassle free data storage.

Customer reviews

4.7

out of 5

22 customer reviews

Most recent 10 reviews

Great hard drive
I have 5 of these for my DAS in my home server setup and they’ve never failed me. Very good and reliable.
KFORCESep 10, 2026
Long life
I have always purchased these drives and they are not only quiet, but last forever. I will be buying more in the future!!
TallrandalAug 31, 2026
Nice Drive - Quiet - Expensive
This is a nice drive. I bought it for use in my synology NAS. It’s quiet and relatively fast. It’s not as fast as other enterprise level drives, but it’s also way quieter. The reason this is 4 stars is because it’s so expensive. $200 for a 4tb drive is insane. I wouldn’t have purchased this if I didn’t need it right now. Hard drive prices are skyrocketing right now. Wait until these are less than $20 per TB to purchase.
FrankAug 21, 2026
Good for my NAS
Using it for Daily Nas storage and no issue with these drives
AkhilGAug 18, 2026
Great for my NAS
Great quality as expected. I own two of these and have never had a problem.
MATTKAug 17, 2026
Wd Red plus Nas
I bought 2 of these for my Synology 225+ NAS. Installed them according the Synology instructions and they work perfectly.
JOSEPHFAug 14, 2026
Defective/had to buy another
Product was defective when received, first thought it was my sata cable but after doing test on the drive, came out as a hardware error, had to buy a new one at micro center and works well now.
BRYANVAug 7, 2026
NAS drives
The drives were recommended for use in a new NAS drive system for online backup and file sharing. It was hard to find them online but BestBuy came through. So far, the system is working fine and the drives are performing as they should. Thanks!
RAJUDANAug 7, 2026
Great
As expected. No complaints. Plug and play. Couldn’t find purple for video recording so opted for red.
DavidJul 30, 2026
Memory
Works great for my cloud storage. Does the job for me
Isiah28Jul 28, 2026