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Silver 2.5 inch bare SAS hard drive with green circuit board

HGST

HGST HUC101812CS4204 1.2TB 2.5" SAS 10K 12Gb/s internal hard drive

SKU CH-JNFM-E55KN

A 1.2TB 2.5" SAS drive spinning at 10000 RPM with a 12Gb/s interface for high-performance storage

  • Total capacity1.2 TB
  • Interface typeSAS 12Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Rotational speed10,000 RPM
  • Mean latency12Gb/s
  • High-capacity 1.2TB storage for demanding workloads
  • 10000 RPM spindle speed enables fast data access
  • SAS 12Gb/s interface delivers high-throughput connectivity
  • Compact 2.5-inch form factor fits dense server bays
  • Bare drive configuration allows flexible tray integration

1.2 TB SAS 10K Drive

This new HGST HUC101812CS4204 is a 1.2 TB 2.5 inch SAS 12 Gb/s internal hard drive spinning at 10000 RPM. It arrives as a bare drive without a tray and is built for desktop systems that accept a 2.5 inch SAS interface.

Suits SAS-Only Builds

It suits administrators who need a 10K SAS spindle for transactional workloads or high-IOPS arrays. Builders whose platforms lack a SAS host bus adapter or backplane cannot install this drive.

12 Gb/s SAS Interface

The single specification that decides fitment is the 12 Gb/s SAS interface; the system must provide a compatible SAS controller and physical connector for the drive to operate.

How it compares

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

Price $35.99
Cheaper than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 1.2 TB
Lower than about 58% of the 2,372 comparable items (median 2 TB).
Price per TB $29.99 per TB
Cheaper than about 83% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameHGST
Model nameHUC101812CS4204
Total capacity1.2 TB
Performance
Rotational speed10,000 RPM
Mean latency12Gb/s
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor2.5 in (6.35 cm)

Questions about this item

How does the 10000 RPM spindle speed affect real-world throughput?

The 10000 RPM rotation reduces average latency and sustains higher sequential throughput than slower drives when the SAS 12Gb/s link is not the bottleneck.

What does the SAS 12Gb/s interface cap in practice?

The SAS 12Gb/s interface caps the host link at 12Gb/s; actual drive throughput will be lower and limited by the 10000 RPM mechanical speed.

Will this 2.5-inch bare drive fit a standard 3.5-inch bay without an adapter?

No, the 2.5-inch form factor requires a 2.5-to-3.5-inch adapter or a dedicated 2.5-inch bay; the bare drive ships without a tray.

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