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Silver 3.5 inch internal hard drive with hot-swap tray

HPE

HPE 872491-B21 4TB 7.2K SATA 6Gbps 3.5" internal hard drive

SKU CH-H0AG-RQDYV

A 4 TB 3.5" SATA internal hard drive spinning at 7200 rpm with hot-plug support for HPE ProLiant servers

  • 4 TB capacity stores large datasets
  • 7200 rpm spindle speed delivers quick data access
  • SATA 600 interface connects to compatible servers
  • Hot-pluggable 3.5" form factor enables drive swaps without downtime
  • Digitally signed firmware helps protect data integrity

Capacity and form factor

The HPE 872491-B21 is a 4 TB internal hard drive built in a 3.5 inch large-form-factor design. It spins at 7200 rpm and connects through a SATA 600 interface. The unit is hot-pluggable and digitally signed firmware helps protect data integrity on compatible HPE ProLiant servers.

Thermals and power in normal use

The drive operates at a standard midline spindle speed of 7.2K rpm, which keeps heat output and acoustic levels consistent with typical nearline storage workloads. Hot-plug support allows replacement without powering down the chassis, reducing service disruption. The 2.99 lb weight reflects a conventional mechanical assembly.

Included tray and firmware benefits

A server-specific carrier is supplied so the drive seats directly in supported HPE ProLiant bays. Digitally signed firmware validates code authenticity on each boot, lowering the risk of unauthorised modification. China RoHS certification confirms compliance with restricted-substance regulations for the declared country of origin.

Highlights

  • 4 TB capacity stores large datasets
  • 7200 rpm spindle speed delivers quick data access
  • SATA 600 interface connects to compatible servers
  • Hot-pluggable 3.5" form factor enables drive swaps without downtime
  • Digitally signed firmware helps protect data integrity

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 872491-B21 into a ProLiant server and which step is often missed?

Slide the 3.5" LFF carrier into a hot-swap bay until the latch clicks, then verify the drive appears in the Smart Storage Administrator before putting the server back into production.

What maintenance or replacement will the 4 TB SATA 600 midline drive need later?

Plan to replace the drive after its rated service life or if SMART attributes report reallocated sectors; no scheduled lubrication or firmware updates are required by HPE for this model.

What limit appears first on the 7.2K rpm drive during sustained write workloads?

The 7200 rpm spindle caps sequential throughput at the SATA 600 interface ceiling, so sustained writes flatten once the media transfer rate is reached.

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