WD Red 4TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD40EFAX

by Western Digital

WD Red 4TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD40EFAX — charted as a top-100 best-selling hard drive on Amazon UK in 4 different years (2020–2023), peaking at #64.

About this hard drive

  • Specifically designed for use in NAS systems with up to 8 bays
  • Supports up to 180 TB/yr workload rate* |Workload Rate is annualized (TB transferred times (8760/recorded power-on hours)), workload rate will vary depending on your hardware and software components and configurations
  • NASware firmware for compatibility
  • Small and home office NAS systems in a 24/7 environment. 3-year manufacturer's limited warranty
  • Note: The always-on environment of a NAS or RAID is a hot one, and desktop drives aren’t typically designed and tested under those conditions like WD Red

Details

Peak position#64 (of 4 years charting)
Charted2020–2023
CategoryData Storage › Internal Data Storage › Internal Hard Drives
PublisherWestern Digital
Price range£68.40 – £344.90 (all time)

Price history

Amazon UK price history for WD Red 4TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD40EFAX

Price history chart by Keepa.

In the charts

Its best year was 2021, when it finished at #64 in Amazon UK’s annual Top 100 hard drives. That year’s #1 was Toshiba 1TB Canvio Basics Portable External Hard Drive,USB 3.2. Gen 1, Black (HDTB410EK3AA) by Toshiba. It first charted in 2020 at #69, climbed to a peak of #64 in 2021, and last appeared in 2023, at #100. That is 4 consecutive years in the Top 100.

Around it in 2021

See the full 2021 Top 100 →

More best-sellers from Western Digital

Chart History

FAQs

Was "WD Red 4TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD40EFAX" a bestseller?
WD Red 4TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD40EFAX — charted as a top-100 best-selling hard drive on Amazon UK in 4 different years (2020–2023), peaking at #64.

What was the best-selling hard drive of 2021?
"Toshiba 1TB Canvio Basics Portable External Hard Drive,USB 3.2. Gen 1, Black (HDTB410EK3AA)" by Toshiba was the #1 best-selling hard drive on Amazon UK in 2021. "WD Red 4TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD40EFAX" finished at #64 that year.

What other hard drives by Western Digital were bestsellers?
"WD Blue 1TB 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 64MB Cache, 2 Year Warranty" (peak #2, 2016–2023); "WD 1 TB Elements Portable Hard Drive" (peak #2, 2017–2026); "WD 2TB Elements portable external hard drive, USB 3.0 interface, portable external storage, Plug-and-Play, SuperSpeed USB 3.2 Gen 1, Formatted for PC and Mac, Black" (peak #3, 2017–2024); "WD Red 3TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD30EFRX" (peak #5, 2016–2020); "WD 4TB Elements AE Portable External Hard Drive, SuperSpeed USB 3.2 Gen 1/USB 3.0, Plug-and-Play, Formatted for Windows, Black" (peak #6, 2025–2026).

What years did "WD Red 4TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD40EFAX" chart on Amazon UK?
It appeared in the annual Top 100 best-selling hard drives list in: 2023 (#100), 2022 (#82), 2021 (#64), 2020 (#69).