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Silver 3.5 inch enterprise hard drive bare drive with SAS connector visible

HGST

HGST Ultrastar 7K6000 0F22791 6TB 7200 RPM 128MB SAS 12Gb/s 3.5" internal hard drive

SKU CH-DGB2-ZW8JM MPN 0F22791

Enterprise 6TB SAS drive delivers 7200 RPM performance with 128MB cache for cloud and hyperscale storage

  • Total capacity6 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory128 MB
  • Enterprise-grade SAS 12Gb/s interface for high-speed data centres
  • 6TB capacity at 7200 RPM with 128MB cache for demanding workloads
  • 6ms average seek and 4.16ms latency deliver responsive random access
  • 50% more capacity and 30% better power efficiency than prior generation
  • 2M hours MTBF with secure erase and self-encrypting options for data protection

Enterprise 6 TB SAS drive

The HGST Ultrastar 7K6000 0F22791 is a 6 TB 3.5-inch internal hard drive built for enterprise storage arrays. It spins at 7200 RPM with a 128 MB cache and connects through a SAS 12Gb/s interface. The bare-drive unit suits cloud, hyperscale and video-surveillance workloads that demand sustained throughput.

12 Gb/s SAS practical limits

The SAS 12Gb/s link tops out at 12 Gb/s per port and falls back to 6 Gb/s SATA for backward compatibility. Real-world throughput depends on the host controller, cabling and backplane design; the drive itself cannot exceed the electrical and protocol ceiling of the interface. Average latency is 4.16 ms with a 7.6 ms seek time.

Upgrade from 7K4000 generation

Compared to the prior 7K4000 this model delivers 50 per cent more capacity at 6 TB versus 4 TB and 30 per cent better power efficiency per terabyte. Sequential read and write speeds rise by 25 per cent while random write performance can triple through media cache technology. The jump is worth it when density and efficiency gains outweigh the cost of a controller refresh.

How it compares

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

Price $298.99
Pricier than about 82% of the 4,938 comparable items (median $107.99).
Total capacity 6 TB
Higher than about 75% of the 2,372 comparable items (median 2 TB).
Price per TB $49.83 per TB
Cheaper than about 61% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameHGST
Product lineUltrastar 7K6000
Model nameHUS726060AL5210 (0F22791)
Total capacity6 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Average seek time7.6 ms
Mean write time8 ms
Mean latency4.16 ms
Storage
Cache memory128 MB
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.6(+/-0.25)mm
Maximum length147 mm
Shipping weight0.70 kg
Package size210 × 149 × 27 mm

Questions about this item

Should I pick the 6 TB 7200 RPM SAS 12Gb/s model or a lower-capacity 4 TB variant for my storage array?

The 6 TB 7200 RPM drive gives 50% more capacity than the 4 TB 7K4000 while using 30% less power per terabyte, so you need fewer bays for the same raw space.

What does the 7200 RPM rating mean for real-world throughput inside a server?

At 7200 RPM the drive delivers up to 25% faster sequential read and write speeds versus the previous generation, with average seek time of 7.6 ms and average latency of 4.16 ms.

How does the SAS 12Gb/s interface limit transfer speed in practice?

The 12 Gb/s SAS link caps the burst transfer rate at the interface level, while sustained throughput is governed by the 7200 RPM mechanics and 128 MB cache buffer.

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