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Silver 3.5 inch bare hard drive with green circuit board visible

HP

HP 659337-B21 1TB 7200 RPM SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-CB3T-HSKS9 MPN 659337-B21

1 TB desktop drive spins at 7 200 RPM over a SATA 6.0 Gb/s link for server workloads

  • Total capacity1 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Flash memory typeHard Drives
  • Rotational speed7,200 RPM
  • 1TB capacity for mass storage in servers
  • 7200 RPM spindle speed for responsive data access
  • SATA 6.0Gb/s interface for high-throughput transfers
  • 5-inch form factor fits standard server bays
  • New condition bare drive ready for immediate deployment

1 TB 7200 RPM SATA drive

This 3.5 inch SATA hard drive delivers 1 TB of capacity at 7200 RPM. It is built for desktop and server chassis that accept a standard 3.5 inch bay. The bare-drive package suits system integrators and IT teams who install their own trays. Buyers needing a smaller 2.5 inch form factor or a hot-plug carrier should look elsewhere.

Sustained throughput on a 6.0 Gb/s link

The drive runs at 7200 RPM with a SATA 6.0 Gb/s interface, so sequential transfer rates stay closer to the interface ceiling during long reads and writes. Average latency is rated at 6 Gb/s, reflecting the bus speed rather than a burst figure. Workloads that stream large files continuously will see steadier performance than with lower-speed spindles.

SATA 6.0 Gb/s practical ceiling

The SATA 6.0 Gb/s interface caps real-world throughput well below its 6.0 Gb/s signalling rate once protocol overhead and command queuing are counted. Mechanical limits of the 7200 RPM platters mean sustained transfers rarely saturate the link. Systems that need higher sustained bandwidth must move to a faster interface than SATA.

How it compares

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

Price $177.99
Pricier than about 65% 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 $177.99 per TB
Pricier than about 76% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameHP
Model name659337-B21
Total capacity1 TB
Recommended useIdeal for Servers
Performance
Rotational speed7,200 RPM
Mean latency6Gb/s
Storage
Flash memory typeHard Drives
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight1.81 kg
Package size147 × 102 × 25 mm

Questions about this item

How much power and heat does the 7200 RPM drive generate during continuous server use?

As a 3.5 inch 7200 RPM SATA drive it draws typical mechanical-hard-drive power and produces corresponding heat; ensure your chassis airflow handles sustained spindle activity.

What host connector and physical bay does the 659337-B21 require?

It needs a SATA 6.0Gb/s port and a standard 3.5 inch drive bay with a simple-swap tray or fixed mounting screws.

Will this 1 TB 7.2K SATA drive work in an older 3 Gb/s backplane?

Yes, the SATA 6.0Gb/s interface negotiates down to 3 Gb/s, so the drive functions at the slower link speed without configuration changes.

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