Western Digital

Western Digital HUS724040ALE641-DVR 4TB Ultrastar HDD (Renewed)

4.4 (331 reviews)

Get enterprise-grade 24/7 reliability in a recertified 4TB Ultrastar drive at a fraction of new cost.

$145.00*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Western Digital (HGST) Ultrastar 7K4000 is an enterprise-class 3.5-inch internal hard drive offering 4TB of storage with a 7200RPM spindle speed, 64MB cache, and a SATA III 6.0Gb/s interface. Originally engineered for data center and enterprise environments, this drive is built to operate continuously around the clock with higher reliability ratings than consumer-grade alternatives. Its heavy-duty construction and vibration tolerance make it equally well-suited for home NAS systems, multi-drive RAID arrays, and CCTV DVR installations that demand dependable, always-on storage.

This renewed unit has been recertified using factory diagnostic software and subjected to a complete sector-by-sector scan to confirm zero bad sectors — a more rigorous process than the spot-checks used on many refurbished drives. The result is a drive that offers enterprise performance and build quality at a significantly reduced price point. Compatibility spans PC, Mac, NAS, RAID, and DVR systems, making it a versatile option for a wide range of storage needs. While the drive's prior usage history is unknown, the thorough recertification process and Amazon Renewed Guarantee provide a reasonable level of assurance for buyers looking to maximize storage value.

Key Features

4TB Capacity, 7200RPM Rotation Speed, 64MB Cache,SATA III 6.0Gb,s, Enterprise Grade, Heavy Duty

3.5Inches Internal Hard Drive, SATA III 6.0Gb/s, Designed for 24/7 reliable operation

Works for PC, Mac, RAID, NAS, CCTV DVR

Passed Factory Diagnostic Software + RE-CERTIFIED by State-of-the-Art software - Full InchesSector-by-SectorInches test to ensure best HDD quality! ZERO Bad Sectors!

Specifications

Brand
Western Digital (HGST)
Model
HUS724040ALE641-DVR
Capacity
4TB
Spindle Speed
7200RPM
Cache
64MB
Interface
SATA III 6.0Gb/s
Form Factor
3.5"
Designed Use
24/7 Enterprise, NAS, RAID, CCTV DVR
Condition
Renewed / Recertified

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Pros & Cons

👍 Pros

  • Enterprise-grade construction designed for continuous 24/7 operation
  • Full sector-by-sector recertification ensures zero bad sectors at time of sale
  • Versatile compatibility across PC, Mac, NAS, RAID, and CCTV DVR setups
  • 7200RPM speed with 64MB cache delivers strong mechanical drive performance

👎 Cons

  • Renewed drive has unknown prior usage hours, which may affect remaining lifespan
  • 64MB cache is smaller than the 128MB or 256MB caches found on newer 4TB drives
  • Covered by Amazon Renewed Guarantee rather than HGST's original enterprise warranty
  • Enterprise drives can run louder than consumer models due to higher-performance components

Frequently Asked Questions

Each drive is tested using factory diagnostic software and undergoes a full sector-by-sector scan to verify zero bad sectors. This process ensures the drive meets quality standards comparable to a new unit before it is resold.
Yes, the HUS724040ALE641 works with Mac, PC, NAS, RAID arrays, and CCTV DVR systems. It may need to be reformatted to the appropriate file system (such as APFS or HFS+ for Mac) before use.
The HGST Ultrastar 7K4000 is an enterprise-class drive designed for 24/7 continuous operation with higher mean-time-between-failure ratings, heavier-duty components, and vibration tolerance beyond what consumer drives are built to handle.
Renewed drives are covered by the Amazon Renewed Guarantee rather than the original manufacturer warranty. If the drive does not meet your expectations, you are eligible for a replacement or refund.