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Silver 2.5 inch hard drive with attached hot-swap tray

HP

HP 655710-B21 656108-001 1TB 6G SATA 7.2K 2.5 SC MDL HDD G8/9 internal hard drive

SKU CH-HP61-PHK2A

1 TB SATA hard drive spins at 7,200 rpm in a 2.5-inch form factor with an attached hot-swap tray for Gen8/9 servers

  • Total capacity1 TB
  • 1 TB capacity stores large datasets and backups
  • 2K RPM spindle delivers consistent throughput for server workloads
  • 5-inch low-profile form factor fits dense drive bays
  • 6 Gb/s SATA interface connects directly to Gen8 and Gen9 controllers
  • Hot-plug tray attached enables drive replacement without system shutdown

HP 1 TB SATA Server Drive

This 1 TB hard drive uses a SATA interface and spins at 7,200 rpm in a 2.5 inch low-profile form factor. It is built for HP Generation 8 and 9 servers and ships with a hot-swap tray attached. The drive is new and intended for internal server or storage-array installations.

SATA 6 Gbit/s Interface Limit

The SATA connection tops out at 6 Gbit/s, so sustained throughput cannot exceed that ceiling regardless of the drive’s rotational speed. Random I/O performance is bound by the 7,200 rpm spindle and the mechanical latency inherent to spinning media. The interface is backward compatible with slower SATA links, but the 6 Gbit/s maximum remains the hard boundary.

1 TB Capacity and Mechanical Headroom

One terabyte provides room for operating-system images, application bins and moderate data sets on a single spindle. Heavy write workloads or large sequential archives will saturate the mechanical throughput before the capacity fills. Workloads demanding higher IOPS or lower latency than a 7,200 rpm drive can deliver need a different storage tier.

How it compares

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

Price $151.99
Pricier than about 60% of the 4,938 comparable items (median $107.99).
Total capacity 1 TB
Lower than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $151.99 per TB
Pricier than about 72% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameHP
Total capacity1 TB

Questions about this item

Should I choose the 1 TB capacity or a different size for this HP 655710-B21 drive?

This model is offered only in a 1 TB capacity. Select it if that capacity meets your storage needs.

What does the 7.2 K rpm rotational speed mean for real-world performance in a server?

The 7,200 rpm spindle delivers typical nearline throughput for bulk data, backups and sequential workloads in G8 or G9 servers.

The drive uses a 6 G SATA interface — what does that cap in practice?

The SATA 6 Gb/s link limits maximum transfer rate to 6 Gb/s; actual sustained speeds depend on the drive’s mechanical performance.

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