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Silver 2.5-inch SAS hard drive with green circuit board visible underneath

HGST

HGST Ultrastar C10K1200 HUC101212CSS600 1.2TB 10000 RPM 64MB SAS 2.5" laptop hard drive

SKU CH-5QT6-PTVQ6 MPN HUC101212CSS600

A 1.2TB 10000 RPM SAS 2.5" enterprise drive with 64MB cache and 4.6ms seek time

  • Total capacity1.2 TB
  • Interface typeSAS 6Gb/s
  • Form factor2.5 in (6.35 cm)
  • Rotational speed10,000 RPM
  • Cache memory64 MB
  • Average seek time4.6 ms
  • 2 TB capacity stores large datasets
  • 10,000 RPM spindle speed accelerates data access
  • 64 MB cache buffer manages bursts efficiently
  • 6 ms average seek time reduces latency
  • SAS 6 Gb/s interface ensures reliable throughput

Enterprise SAS drive for servers

This 2.5 inch HGST Ultrastar C10K1200 provides 1.2TB of storage on a 6Gb/s SAS interface. It spins at 10000 RPM with a 64MB cache buffer. The drive is built for enterprise arrays and compatible storage controllers. It will not work in a desktop PC that lacks a SAS host bus adapter.

10000 RPM spindle speed

The 10000 RPM rotation rate is the single specification that determines whether this drive meets your throughput needs. Average seek time is 4.6ms and average write time is 5.0ms. Average latency is below 3.0ms. These figures define random-access performance for transactional workloads.

Sustained enterprise workloads

Field-proven design supports continuous operation in multi-drive environments. The 64MB cache manages data efficiently during extended write sequences. The drive is erased to DoD 5220.22 M standard and tested with health no lower than 90 percent. It is sold as used in working condition.

How it compares

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

Price $574.99
Pricier than about 90% of the 645 comparable items (median $66.99).
Total capacity 1.2 TB
Higher than about 90% of the 419 comparable items (median 320 GB).
Price per TB $479.16 per TB
Pricier than about 75% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameHGST
Product lineUltrastar C10K1200
Model nameHUC101212CSS600 (0B25168)
Total capacity1.2 TB
Performance
Rotational speed10,000 RPM
Average seek time4.6 ms
Mean write time5.0 ms
Mean latency<3.0 ms
Storage
Cache memory64 MB
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Max height14.8 mm
Maximum width70.1 mm
Maximum length100.6 mm
Shipping weight0.45 kg
Package size178 × 127 × 76 mm

Questions about this item

How does the 10000 RPM spindle speed affect real-world access times in a laptop or server bay?

The 10000 RPM rotation yields a 4.6ms average seek time, 5.0ms average write time and under 3.0ms average latency for quick random access.

What does the SAS 6Gb/s interface limit in actual use?

The SAS 6Gb/s link caps the maximum interface throughput at 6Gb/s, so sustained transfers cannot exceed that bandwidth.

Will the 14.8mm height fit standard 2.5-inch drive bays and caddies?

The drive measures 14.8mm high, 70.1mm wide and 100.6mm long, matching the 2.5-inch SFF form factor used in many enterprise bays.

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