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Silver 3.5 inch SAS hard drive bare unit with HGST label

HGST

HGST 0B22178 147GB 3.5" SAS 15000 RPM internal hard drive

SKU CH-0S5P-5J82N

A 147 GB 3.5-inch SAS hard drive spinning at 15000 RPM for high-speed enterprise storage

  • Total capacity147 GB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed15,000 RPM
  • Mean latency12Gb/s
  • 15000 RPM SAS drive accelerates transaction-heavy workloads
  • 147 GB capacity fits focused enterprise datasets
  • 5 inch form factor suits standard server bays
  • 12 Gb/s interface supports high-throughput arrays
  • Brand-new HGST unit delivers factory-fresh reliability

Enterprise 15K SAS Drive

The HGST 0B22178 is a 147 GB 3.5 inch hard drive that spins at 15000 RPM for low-latency transaction workloads. It connects through a SAS interface and is supplied as a bare drive for server or storage-array integration.

SAS 12 Gb/s Interface Limit

The drive uses a SAS interface rated at 12 Gb/s, yet the manufacturer highlights list a 3 Gb/s transfer rate for this model. System throughput will be constrained by the slower of the drive firmware or the host controller.

147 GB Capacity Constraint

Only 147 GB of raw capacity is available, which suits metadata, journal or boot-volume roles but rules out bulk data retention. Buyers who need more storage must select a higher-capacity drive.

How it compares

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

Price $57.99
Cheaper than about 72% of the 4,938 comparable items (median $107.99).
Total capacity 147 GB
Lower than about 94% of the 2,372 comparable items (median 2 TB).
Price per TB $394.49 per TB
Pricier than about 89% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameHGST
Model name0B22178
Total capacity147 GB
Performance
Rotational speed15,000 RPM
Mean latency12Gb/s
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

Is the 147 GB capacity the only option for the 0B22178?

The HGST 0B22178 is offered in a single 147 GB capacity; no other sizes share this part number.

How does the 15,000 RPM spindle speed affect real-world performance?

A 15,000 RPM spindle delivers very low rotational latency, so random read and write operations complete faster than on slower enterprise drives.

The spec lists both SAS 12 Gb/s and a 3 Gb/s transfer rate — which one limits the drive?

The drive’s native SAS 12 Gb/s interface is capped by the 3 Gb/s transfer rate, so sustained throughput will not exceed 3 Gb/s.

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