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

Name: WD Red 4TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD40EFAX
Brand: Western Digital
SKU: B083XVY99B
Price: 187.33 GBP
Availability: OutOfStock
Rating: 4.4 (12243 reviews)

4.4(12,243)

£187.33

WD Red 4TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD40EFAX is priced at £187.33 — stable over the last 30 days.

Price last checked: 18 Apr 2026, 16:49

Form Factor: 3.5-inch

Interface: eSATA

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

View on Amazon

About This Product

The Western Digital WD Red 4TB 3.5 Inch NAS Internal Hard Drive is a 4TB storage solution with a 5400 RPM speed, designed for use in NAS systems with up to 8 bays. It features NASware firmware for compatibility and supports a workload rate of up to 180 TB/yr, making it suitable for small and home office NAS systems in a 24/7 environment. This drive is ideal for users who require reliable storage for their always-on NAS or RAID setups, such as small businesses or home offices with heavy data s...