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WD - Red Plus 4TB NAS Internal Hard Drive

Model: WD40EFZZ-SPCPAN0
SKU: 6670402
Deal ends Apr 6, 2026
$104.99
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Specifications
  • Storage Capacity
    4000 gigabytes
    Storage Drive Type
    HDD
    Rotational Speed
    540 revolutions per minute
    Maximum Read Speed
    180 megabytes per second
    Maximum Write Speed
    180 megabytes per second
    Form Factor
    3.5 in.
  • Key Specs
    • Storage Capacity: 4000 gigabytes (Measured in megabytes (MB), gigabytes (GB) and terabytes (TB), this is the amount available for storing files, music, movies, photos and more. The total includes the capacity of the hard disk drive and solid state drive if both are included on the computer.)
    • Storage Drive Type: HDD (Traditional, mechanical hard disk drives are the most common type of storage because they're relatively inexpensive and offer huge capacities. However, they also generate both noise and heat. Solid state drives, also known as SSDs, are many times faster than hard disk drives and have no moving parts to wear out, but typically offer less capacity for the same price.)
    • Rotational Speed: 540 revolutions per minute (The rate at which the hard drive spins its platters. The higher the rotational speed, the faster the drive can read and write data.)
    • Maximum Read Speed: 180 megabytes per second (The greatest speed at which the device can read information; for example, opening files.)
    • Maximum Write Speed: 180 megabytes per second (The greatest speed at which the device can write information; for example, saving files.)
    • Form Factor: 3.5 in.
    • Interface(s): SATA (Refers to the types of connections that devices use to interact and communicate with each other.)
  • General
    • Brand: WD
    • Model Number: WD40EFZZ-SPCPAN0
    • Product Name: Red Plus 4TB NAS Internal Hard Drive
  • Capacity
    • Storage Capacity: 4000 gigabytes (Measured in megabytes (MB), gigabytes (GB) and terabytes (TB), this is the amount available for storing files, music, movies, photos and more. The total includes the capacity of the hard disk drive and solid state drive if both are included on the computer.)
  • Performance
    • Storage Drive Type: HDD (Traditional, mechanical hard disk drives are the most common type of storage because they're relatively inexpensive and offer huge capacities. However, they also generate both noise and heat. Solid state drives, also known as SSDs, are many times faster than hard disk drives and have no moving parts to wear out, but typically offer less capacity for the same price.)
    • Rotational Speed: 540 revolutions per minute (The rate at which the hard drive spins its platters. The higher the rotational speed, the faster the drive can read and write data.)
    • Maximum Read Speed: 180 megabytes per second (The greatest speed at which the device can read information; for example, opening files.)
    • Maximum Write Speed: 180 megabytes per second (The greatest speed at which the device can write information; for example, saving files.)
  • Compatibility
    • Internal Or External: Internal
    • Product Compatibility: Network Attached Storage (NAS), Desktop computers
    • Form Factor: 3.5 in.
    • Interface(s): SATA (Refers to the types of connections that devices use to interact and communicate with each other.)
  • Features
    • Usage: Everyday computing, Backup
  • Memory
    • Cache Buffer Size: 128 megabytes (The data capacity of the cache buffer (or disk buffer) that acts as temporary memory for the drive. The cache holds the most recently and frequently used data to save the drive the extra step of pulling it from permanent storage every time it's needed, which helps increase the drive's overall speed.)
  • Dimensions
    • Product Height: 1.03 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 4 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Weight: 19.36 ounces (The out of box weight of the item.)
  • Warranty
    • Warranty - Parts: 3 years
    • Warranty - Labor: 3 years
  • Other
    • UPC: 718037905754

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.

  • 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.
  • 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.
  • 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.
Whats Included
  • Red Plus 4TB NAS Internal Hard Drive
  • Quick Install Guide
  • Mounting screws
  • Red Plus 4TB NAS Internal Hard Drive
  • Quick Install Guide
  • Mounting screws
  • Red Plus 4TB NAS Internal Hard Drive
  • Quick Install Guide
  • Mounting screws

Q: Is this hard drive optimized for lower TCO?

A: Yes, this hard drive is optimized for lower TCO.

Q: What interface does this internal hard drive use?

A: This internal hard drive uses a SATA interface.

Q: Does this hard drive have a warranty for parts?

A: Yes, this hard drive has a 3 years warranty for parts.

Q: What is the rotational speed of this hard drive?

A: The rotational speed for this hard drive is 5400 revolutions per minute.

Q: What is the maximum write speed for this hard drive?

A: The maximum write speed for this hard drive is 180 megabytes per second.

Q: Is this hard drive designed for continuous operation?

A: Yes, this hard drive is designed for systems that operate 24x7.

Q: What is the cache buffer size of this hard drive?

A: The cache buffer size of this hard drive is 128 megabytes.

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