Western Digital
WD Red Pro 4TB NAS Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch - WD4001FFSX
*Price sourced from Amazon.com. Last updated 2026-04-23. Price and availability subject to change.
WD Red Pro is designed specifically for medium to large NAS systems that have 8 to 16 drive bays. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and for the demanding system requirements of medium to large NAS.
Key Features
- Enhanced reliability with 3D Active Balance Plus and error recovery prevention with NASware 3.2
- Extended drive testing to ensure each drive for extended reliable operation
- Most extensive NAS partner compatibility-testing list available
- 5-year manufacturer limited warranty
- Package includes a hard drive only - no screws, cables, manuals included. Please purchase mounting hardware and cables separately if necessary.
Full Specifications
| UPC | 718037827575 804066533478 |
|---|---|
| ASIN | B00LO3KRM8 |
| Brand | Western Digital |
| Color | Red |
| Model Name | Red Pro |
| Read Speed | 540 Megabytes Per Second |
| Unit Count | 1.0 Count |
| Form Factor | 3.5-inch |
| Item Weight | 1.66 Pounds |
| Media Speed | 540 Megabytes Per Second |
| Manufacturer | Western Digital |
| Model Number | WD4001FFSX |
| Built-In Media | Hard Drive only |
| Hard-Drive Size | 4 TB |
Ready to buy?
WD Red Pro 4TB NAS Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch - WD4001FFSX is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-04-23. Price and availability subject to change.
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