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Silver 3.5 inch bare SAS hard drive, model 625031-B21

HP

HP 625031-B21 3TB 7200 RPM SAS 6Gb/s 3.5" internal hard drive

SKU CH-5B92-BYE5Y MPN 625031-B21

3.5-inch SAS drive spinning at 7200 RPM with 3TB capacity for server storage

  • Total capacity3 TB
  • Interface typeSAS 6Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Mean latency6Gb/s
  • 3 TB capacity stores large datasets
  • 7200 RPM spindle delivers responsive throughput
  • SAS 6 Gb/s interface ensures reliable connectivity
  • 5 inch form factor fits standard drive bays
  • Midline design suits nearline server workloads

3 TB SAS hard drive for servers

This HP 625031-B21 is a 3 TB, 7200 RPM SAS 6Gb/s 3.5-inch internal hard drive supplied as a bare drive. It is built for enterprise and midline server environments that demand high-capacity storage with consistent reliability. The SAS interface supports dual-port operation for improved data-path redundancy. It fits standard large-form-factor drive bays in compatible HP ProLiant and storage systems.

Suits high-capacity server storage not

This drive suits administrators who need large, cost-effective capacity for bulk data, backups or near-line archives in 6 Gb/s SAS infrastructures. It is not for workloads that require low-latency random I/O or sustained throughput beyond what a 7.2K rpm mechanical drive can deliver. Builders needing hot-plug trays must source the appropriate carrier separately. Desktop PCs and consumer NAS units lacking a SAS controller cannot use this drive.

SAS 6Gb/s interface dictates controller

The single specification that decides fitment is the 6 Gb/s SAS interface. The host system must provide a compatible SAS HBA, RAID controller or backplane that supports 3.5-inch LFF drives. Without a SAS connection the drive will not function, regardless of available bays or power connectors.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $582.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 3 TB
Higher than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $194.33 per TB
Pricier than about 78% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameHP
Model name625031-B21
Total capacity3 TB
Recommended useIdeal for Servers
Performance
Rotational speed7,200 RPM
Mean latency6Gb/s
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight1.32 kg
Package size292 × 231 × 135 mm

Questions about this item

Will the SAS 6Gb/s interface on the 625031-B21 work with my older 3Gb/s SAS backplane?

Yes, the 6Gb/s SAS interface is backward compatible with 3Gb/s SAS controllers and backplanes, though the drive will run at the lower 3Gb/s link speed.

How can I verify the 7200 RPM spindle speed is active after installing the drive?

Check the drive's reported rotational speed in your RAID controller BIOS, operating system disk utility, or SMART data — it should show 7200 RPM.

The listing says bare drive; does the 625031-B21 include a 3.5" mounting tray or screws?

No, this is a bare drive only — you must supply your own 3.5" carrier tray and mounting screws for your server or enclosure.

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