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Refurbished 3.5 inch SAS enterprise hard drive bare unit

Seagate Refurbished

Seagate Cheetah 15K.5 ST3146855SS 146GB 15000 RPM 16MB SAS 3.5" internal hard drive

SKU CH-9GB2-THHYB MPN ST3146855SS

A 146 GB SAS enterprise drive spinning at 15000 RPM with 16 MB cache and hot-swap support

  • Total capacity146 GB
  • Interface typeSAS 3Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed15,000 RPM
  • Cache memory16 MB
  • Enterprise-grade 15 000 RPM spindle delivers rapid data access
  • 16 MB cache buffers bursts for smoother throughput
  • SAS interface provides dual-port reliability for servers
  • Hot-swap support allows drive changes without downtime
  • 146 GB capacity in a 3.5 inch form factor

Enterprise 15 000 RPM SAS drive

The Seagate Cheetah 15K.5 ST3146855SS is a 3.5 inch internal hard drive built for enterprise storage. It spins at 15 000 RPM with a 16 MB cache and connects through a SAS 3Gb/s interface. The 146 GB capacity and 4 ms average seek time suit high-transaction workloads. Condition is refurbished.

Suits high-IOPS servers not capacity-first arrays

This drive fits servers that need low latency and sustained random I/O for databases or transaction logs. The 15 000 RPM spindle and SAS signalling support hot-swap bays in rack enclosures. Builders who need more storage per bay should look at larger-capacity alternatives. Buyers without a SAS backplane or HBA cannot use this drive.

SAS 3Gb/s interface decides compatibility

The single specification that determines fit is the SAS 3Gb/s interface. A compatible SAS controller or backplane is mandatory; the drive will not operate on any other bus. Verify the host system provides a SAS 3Gb/s port before purchase.

How it compares

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

Price $125.99
Pricier than about 54% of the 4,938 comparable items (median $107.99).
Total capacity 146 GB
Lower than about 94% of the 2,372 comparable items (median 2 TB).
Price per TB $862.95 per TB
Pricier than about 90% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineCheetah 15K.5
Model nameST3146855SS
Total capacity146 GB
Recommended useFor Enterprise Storage
Performance
Rotational speed15,000 RPM
Average seek time4 ms
Mean latency2 ms
Storage
Cache memory16 MB
Ports & slots
Interface typeSAS 3Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight1.36 kg
Package size166 × 145 × 28 mm

Questions about this item

At 15000 RPM, what is the first limit that appears during sustained use?

The SAS 3Gb/s interface caps sustained throughput at 3 Gb/s, so the bus becomes the bottleneck before the mechanical speed does.

How much noise, heat or power does the drive produce when running all day?

Enterprise 15000 RPM drives run hotter and louder than desktop models; expect noticeable heat and audible seek noise in continuous operation.

What must the system already have for this drive to work?

A compatible SAS 3Gb/s controller or backplane is required; the drive will not work with other port types.

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