HP 872491-B21 4TB SATA HDD Renewed

Name: HP 872491-B21 4TB SATA HDD Renewed
Brand: HP
SKU: 872491-B21

Overview

The HP 872491-B21 is a 4TB SATA hard drive designed as a genuine HP spare for ProLiant and compatible server platforms. Operating at 7,200 RPM with a SATA 6G interface, it targets capacity-oriented server workloads such as file storage, backup repositories, and data archiving where large volumes of data need to be stored reliably without the premium cost of SAS or SSD alternatives. The 3.5-inch LFF (Large Form Factor) design fits standard HP server drive bays, and the HP part number ensures firmware and tray compatibility within the HP ecosystem.

As a renewed unit, this drive has been previously deployed and subsequently refurbished and tested to confirm proper operation. This makes it an attractive option for organizations looking to expand storage capacity on a budget, add drives to non-critical storage tiers, or maintain older server infrastructure without the expense of new enterprise hardware. Buyers should be mindful that renewed drives carry inherent uncertainty regarding prior workload history and remaining useful life, so they are best suited for roles where redundancy — such as RAID configurations — provides an additional layer of data protection. For budget-conscious server storage expansion, the 872491-B21 delivers enterprise compatibility at a fraction of the new-unit cost.

Specifications

Brand

HP

Model

872491-B21

Capacity

4TB

Interface

SATA 6G

Form Factor

3.5" LFF

Spindle Speed

7.2K RPM

Condition

Renewed (Refurbished)

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Pros & Cons

👍 Pros

7,200 RPM spindle speed offers better throughput than slower 5,400 or 5,900 RPM drives
4TB capacity provides substantial server storage for backups, file shares, and archive data
Renewed pricing makes enterprise-grade HP server storage significantly more affordable
3.5" LFF form factor is compatible with standard HP ProLiant server drive bays

👎 Cons

Renewed status means the drive has prior use and may have reduced remaining lifespan compared to new units
Warranty coverage on renewed drives is typically shorter and less comprehensive than new hardware
Carrier tray inclusion is not always guaranteed and may need to be purchased separately
HP-specific part number may limit compatibility outside of HP server environments

Frequently Asked Questions

What does "Renewed" mean for this HP hard drive?

This drive is a pre-owned or refurbished unit that has been inspected, tested, and verified to meet functional standards. It provides a cost-effective way to expand server storage, though it has had prior use.

Is this drive compatible with any server or just HP systems?

The HP 872491-B21 is an HP spare part number designed for HP ProLiant servers with compatible 3.5" LFF drive bays and SATA interfaces. While the drive itself uses standard SATA, the carrier tray and firmware may be HP-specific.

What is the spindle speed of this drive?

The drive operates at 7,200 RPM, which is the standard speed for enterprise SATA storage, providing a solid balance between throughput and reliability for server workloads.

Does this drive come with an HP carrier tray?

As a renewed HP spare part, inclusion of the original carrier tray may vary by seller. Verify with the seller whether the tray is included, as HP servers typically require the proprietary tray for installation.

What type of server workloads is this drive suited for?

With its 4TB capacity and 7.2K RPM speed, this drive is well-suited for bulk storage, backups, file serving, and other capacity-oriented workloads rather than high-IOPS transactional applications.