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Silver rectangular 2.5 inch hard drive with SATA connector and label showing model 655710-B21

HPE

HPE 655710-B21 1TB 7200 RPM SATA 6.0Gb/s 2.5" laptop hard drive

SKU CH-69CN-VBJKX MPN 655710-B21

A 1 TB, 7200 RPM SATA 6.0 Gb/s 2.5" hard drive built for server workloads up to 40 %

  • Total capacity1 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Flash memory typeHard Drive
  • Rotational speed7,200 RPM
  • Max height15.6 mm
  • 1TB capacity stores large datasets
  • 7200 RPM delivers responsive read and write speeds
  • SATA 6.0Gb/s interface provides high-throughput connectivity
  • 5-inch small form factor fits dense server bays
  • Designed for entry server and external storage workloads

1 TB SATA drive for entry servers

The HPE 655710-B21 is a 2.5 inch laptop hard drive with a 1 TB capacity and a 7200 RPM spindle speed. It connects through a SATA 6.0Gb/s interface and fits the small form factor bays found in many entry servers and external storage arrays. The drive is supplied new and carries the standard HP qualification process for ProLiant compatibility.

Thermals noise and power in normal use

Designed for workloads of 40 percent or less, the Midline drive runs at the 7200 RPM rating during typical backup and archival tasks. Acoustic output and power draw remain consistent with the SATA 6.0Gb/s specification for 2.5 inch devices. The 15.6 mm height allows installation in standard SFF slots without additional clearance concerns.

Behaviour under sustained load

Under continuous operation the drive maintains its rated spindle speed while serving sequential read or write streams for archival workloads. The qualification process verifies reliable performance in HP ProLiant servers during extended duty cycles. Workloads exceeding the 40 percent threshold are outside the intended design envelope for this Midline model.

How it compares

Measured against everything we stock in 2.5-Inch Internal Laptop HDDs, at today’s prices. Recalculated every night.

Price $393.99
Pricier than about 90% of the 645 comparable items (median $66.99).
Total capacity 1 TB
Higher than about 90% of the 419 comparable items (median 320 GB).
Price per TB $393.99 per TB
Pricier than about 70% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameHP
Model name655710-B21
Total capacity1 TB
Recommended useIdeal for Servers
Performance
Rotational speed7,200 RPM
Storage
Flash memory typeHard Drive
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Max height15.6 mm
Maximum width75.7 mm
Maximum length118.7 mm
Shipping weight0.68 kg
Package size305 × 254 × 203 mm

Questions about this item

How do I install this 2.5-inch 15.6 mm SATA drive in a server bay, and which step is often missed?

Mount the drive in a 2.5-inch SFF bay using the correct screws, connect the SATA 6.0Gb/s data and power cables, then verify the controller detects 7200 RPM operation; the step often missed is enabling AHCI or RAID mode in BIOS before the OS loads.

What maintenance or replacement will this 1TB midline drive need later?

Plan replacement once the workload consistently exceeds the 40 percent duty-cycle rating for midline drives; monitor SMART reallocated-sector counts and replace the unit if they rise steadily.

What limit appears first when this 7200 RPM drive runs sustained workloads?

The 40 percent workload ceiling is the first limit; sustained writes beyond that level increase latency and reduce the drive's rated service life.

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