Buy wisely
Buy wiselyBuy wisely
For RetailersFor developers
  1. Home
  2. Electronics
  3. Computers
  4. Computer components
  5. Computer Drives & Storage
  6. Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Buy wisely

BuyWisely is your one stop price comparison platform, delivering the best deals from over 20,000 online shops. We empower shoppers to make smart, cost-effective choices by offering transparent pricing, price history, and the latest deals across a broad range of products. With BuyWisely, your money goes further.

Popular Shops
JB Hi-Fi
The Good Guys
Harvey Norman
Appliances Online
Bing Lee
Kogan
Amazon
Officeworks
Contact Us
[email protected]
Affiliate Disclosure
Legal Information
Privacy Policy
Logos provided by Logo.dev
© 2026 BuyWisely•Price data powered by pricesAPI.io•Retailers: SellWisely.io
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD
Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD

Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD

$135.00

(6,997 reviews)

Stream, backup, share, and organize your digital content with a NAS and WD Red Plus drives designed to effortlessly share content with the devices at your home or business. NASware 3.0 technology increases your drives' compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red Pro drives to deliver exceptional performance. Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red Plus hard drive, NASware 3.0's advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. WD Red Plus drives with NASware technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red Plus drive is one of the most compatible drives available for NAS enclosures. But don't take our word for it. WD Red Plus drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time.

Stream, backup, share, and organize your digital content with a NAS and WD Red Plus drives designed to effortlessly share content with the devices at your home or business. NASware 3.0 technology increases your drives' compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red Pro drives to deliver exceptional performance. Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red Plus hard drive, NASware 3.0's advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. WD Red Plus drives with NASware technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red Plus drive is one of the most compatible drives available for NAS enclosures. But don't take our word for it. WD Red Plus drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time.

Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD

(6,997 reviews)

Stream, backup, share, and organize your digital content with a NAS and WD Red Plus drives designed to effortlessly share content with the devices at your home or business. NASware 3.0 technology increases your drives' compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red Pro drives to deliver exceptional performance. Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red Plus hard drive, NASware 3.0's advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. WD Red Plus drives with NASware technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red Plus drive is one of the most compatible drives available for NAS enclosures. But don't take our word for it. WD Red Plus drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time.

Stream, backup, share, and organize your digital content with a NAS and WD Red Plus drives designed to effortlessly share content with the devices at your home or business. NASware 3.0 technology increases your drives' compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red Pro drives to deliver exceptional performance. Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red Plus hard drive, NASware 3.0's advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. WD Red Plus drives with NASware technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red Plus drive is one of the most compatible drives available for NAS enclosures. But don't take our word for it. WD Red Plus drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time.

$135.00 - $494.18

in 11 offers

The lowest price for Western Digital WD WD40EFZX 4TB Red Plus NAS 3.5" HDD right now is $135.00 at Mwave Australia, compared across 11 retailers.

The all-time low was $43.00 on 5 June 2026 — today's price is 214% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 30 June 2026.

Capacity:

2 TB
3 TB
8 TB
10 TB
12 TB
14 TB

Price comparison

Price data powered by pricesAPI.io

Last updated at 30/06/2026 09:00:32

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
Amazon.com.au

$491.84

Western Digital Hard Drive, 4 TB, SATA3, 128 MB, 24/7, Red/Silver/Black

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Mwave Australia

$135.00

Recertified - WD Red Plus 4TB 3.5" SATA III NAS Hard Drive - WD40EFPX

Free delivery between 3–10 July

Phaser FPV

$185.95

Western Digital 4TB Red Plus NAS WD40EFZX 3.5" HDD [PC]

Delivery between 2–8 July $12.70

Netplus Computers

$225.00

Western Digital 4TB Red Plus 5400RPM 3.5in NAS SATA Hard Drive

Delivery between 8–13 July $22

AliExpress.com - AliExpress-226247430

$337.17

Brand New WD Red Plus 4TB HDD Nas Internal Hard Drive Disk 3.5" WD40EFZZ 5400RPM SATA 6Gb/s Harddisk

Free delivery

Woolworths

$338.20

Western Digital 4TB Red Plus 128MB Cache 5400RPM 3.5in SATA Hard Drive (WD40EFZZ)

Delivery $10

Computer Alliance

$349.00

4TB WD 3.5" SATA 6Gb/s Red Plus HDD WD40EFZZ | Best Online Computer Store

Delivery between 7–14 July $9.90

Desertcart.ae

$359.55

Amazon.co.jpWestern Digital WD RedPlus HDD 4TB CMR 3.5inch SATA 128MB 5400rpm NAS WD40EFZZ-AJP

Free delivery between 8–14 July

DiscTech.com

$376.65

Western Digital RED WD40EFZX 4TB 128MB Cache 3.5" NAS SATA

desertcart.com.au

$398.40

Amazon.co.jpWestern Digital WD RedPlus HDD 4TB CMR 3.5inch SATA 128MB 5400rpm NAS WD40EFZZ-AJP

Delivery between 6–9 July $29

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

General
Device TypeHard drive - internal
Capacity4 TB
Form Factor3.5"
InterfaceSATA 6Gb/s

Price comparison

Updated about 1 hour ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
Amazon.com.au

$491.84

Western Digital Hard Drive, 4 TB, SATA3, 128 MB, 24/7, Red/Silver/Black

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Mwave Australia

$135.00

Out of stock

Recertified - WD Red Plus 4TB 3.5" SATA III NAS Hard Drive - WD40EFPX

Free delivery between 3–10 July

Phaser FPV

$185.95

Out of stock

Western Digital 4TB Red Plus NAS WD40EFZX 3.5" HDD [PC]

Delivery between 2–8 July $12.70

Netplus Computers

$225.00

Out of stock

Western Digital 4TB Red Plus 5400RPM 3.5in NAS SATA Hard Drive

Delivery between 8–13 July $22

AliExpress.com - AliExpress-226247430

$337.17

Brand New WD Red Plus 4TB HDD Nas Internal Hard Drive Disk 3.5" WD40EFZZ 5400RPM SATA 6Gb/s Harddisk

Free delivery

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

General
Device TypeHard drive - internal
Capacity4 TB
Form Factor3.5"
InterfaceSATA 6Gb/s

You may also like

Western Digital WD142KFGX WD Red Plus 14TB 3.5" NAS HDD SATA3 7200RPM 512MB Cache 24x7
Western Digital WD142KFGX WD Red Plus 14TB 3.5" NAS HDD SATA3 7200RPM 512MB Cache 24x7$1,009.00 - $1,279.00
6,666
Compare 3 offers
Western Digital 6TB WD Red Plus NAS Hard Drive, HDD Built For Optimum NAS - WD60EFPX
Western Digital 6TB WD Red Plus NAS Hard Drive, HDD Built For Optimum NAS - WD60EFPX$277.00 - $849.00
5,765
Compare 10 offers
Western Digital WD WD40EFAX 4TB Red 3.5in NAS Hard Drive
Western Digital WD WD40EFAX 4TB Red 3.5in NAS Hard Drive$198.15 - $644.70
6,860
Compare 3 offers
Western Digital WD Red Plus 4TB 3.5' NAS HDD SATA III NAS Hard Drive 5400 RPM 256MB Cache 180MB/s 1mil Hours MTBF 180TB
Western Digital WD Red Plus 4TB 3.5' NAS HDD SATA III NAS Hard Drive 5400 RPM 256MB Cache 180MB/s 1mil Hours MTBF 180TB$399.00 - $399.00
6,495
Compare 3 offers