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3.5 inch bare hard drive silver metal casing visible label Seagate Cheetah ST3300655SS 300GB 15000 RPM 16MB SAS

Seagate

Seagate Cheetah ST3300655SS 300GB 15000 RPM 16MB SAS 3.5" internal hard drive

SKU CH-X7S1-BVJXV MPN ST3300655SS

300 GB 15000 RPM SAS drive with 16 MB cache in 3.5 inch form factor for server workloads

  • Total capacity300 GB
  • Interface typeSAS 3Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed15,000 RPM
  • Cache memory16 MB
  • 15000 RPM spindle speed delivers fast data access
  • 300GB capacity provides enterprise storage space
  • SAS interface enables dual-port server connectivity
  • 16MB cache buffers bursts for smoother throughput
  • 5-inch form factor fits standard drive bays

Seagate Cheetah 300GB 15K SAS Drive

The Seagate Cheetah ST3300655SS is a 300GB 3.5-inch internal hard drive spinning at 15000 RPM with a 16MB cache. It uses a SAS 3Gb/s interface and is supplied as a bare drive. This unit is designed for high-performance server environments.

Suited for high-IOPS server workloads

This drive suits administrators deploying storage in transaction-heavy servers where low latency and sustained throughput matter. It is not suitable for desktop PCs or workstations lacking a SAS controller. Buyers needing larger capacities or lower power draw should consider other options.

SAS 3Gb/s interface determines compatibility

The single specification that decides fit is the SAS 3Gb/s interface; the system must provide a matching SAS backplane or host bus adapter. Without that connection the drive cannot communicate. Verify the controller supports this interface 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 $84.99
Cheaper than about 57% of the 4,938 comparable items (median $107.99).
Total capacity 300 GB
Lower than about 88% of the 2,372 comparable items (median 2 TB).
Price per TB $283.30 per TB
Pricier than about 83% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineCheetah
Model nameST3300655SS
Total capacity300 GB
Recommended useIdeal for Servers
Performance
Rotational speed15,000 RPM
Mean latency3Gb/s
Storage
Cache memory16 MB
Ports & slots
Interface typeSAS 3Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight1.36 kg
Package size163 × 122 × 33 mm

Questions about this item

How can I confirm the drive is spinning at 15000 RPM after installation?

Check the SMART data or system BIOS; both will report the spindle speed as 15000 RPM for the ST3300655SS.

The listing says "Bare Drive" — does that mean I need to buy a SAS cable and mounting screws separately?

Yes, the bare-drive package includes only the 3.5-inch unit; a SAS cable, power connector and mounting screws must be sourced separately.

I see only the 300GB 15000 RPM version listed — are there other capacities or speeds for this model?

The ST3300655SS is offered solely as a 300GB 15000 RPM drive; other capacities or speeds carry different model numbers.

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