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Silver 2.5 inch bare hard drive with SAS connector

Seagate

Seagate Savvio 15K.3 ST9300653SS 300GB 15000 RPM 64MB SAS 2.5" laptop hard drive

SKU CH-E2BT-VRA4W MPN ST9300653SS

A 300 GB 2.5 inch SAS hard drive spinning at 15000 RPM with 64 MB cache for server workloads

  • Total capacity300 GB
  • Interface typeSAS 6Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Cache memory64 MB
  • Mean latency2 ms
  • 15000 RPM spindle speed cuts average latency to 2 ms
  • 64 MB cache boosts random read and write throughput
  • SAS 6 Gb/s interface supports high-bandwidth server workloads
  • 300 GB capacity in 2.5 inch form factor doubles Tier 1 storage density
  • 15 mm height fits standard enterprise drive bays

Enterprise 300GB SAS drive

The Seagate Savvio 15K.3 ST9300653SS is a new 300GB 2.5-inch internal hard drive with a SAS 6Gb/s interface. It spins at 15000 RPM and includes a 64MB cache for enterprise workloads. The bare-drive form factor measures 15mm in height, 70.1mm in width and 100.45mm in length.

Suited for server tiers, not laptops

This drive is built for server environments that demand high spindle speed and SAS connectivity. It suits administrators who need 300GB of Tier 1 storage in a 2.5-inch bay with 15mm clearance. Buyers whose chassis only accepts 2.5-inch drives thinner than 15mm or whose backplanes lack SAS support should look elsewhere.

15000 RPM spindle speed

The 15000 RPM rotation rate is the single specification that determines whether this drive meets the performance envelope of the target array. It delivers the low 2ms average latency and the sequential throughput gains quoted for the Savvio 15K.3 series. If the application requires a slower spindle or a different interface, this model will not fit the requirement.

How it compares

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

Price $292.99
Pricier than about 90% of the 645 comparable items (median $66.99).
Total capacity 300 GB
Lower than about 60% of the 419 comparable items (median 320 GB).
Price per TB $976.63 per TB
Pricier than about 90% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameSeagate
Product lineSavvio 15K.3
Model nameST9300653SS
Total capacity300 GB
Recommended useIdeal for Servers
Performance
Mean latency2 ms
Rotational speed15,000 RPM
Storage
Cache memory64 MB
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Max height15 mm
Maximum width70.1 mm
Maximum length100.45 mm
Shipping weight0.20 kg
Package size220 × 136 × 23 mm

Questions about this item

Does the 64 MB cache on the ST9300653SS require any periodic maintenance or replacement?

The 64 MB cache is a solid-state buffer integrated into the drive controller and has no serviceable parts or replacement schedule.

What limit appears first when the 15000 RPM drive runs under sustained heavy workloads?

The 15 mm height and 15000 RPM spindle speed mean thermal output reaches the enclosure limit before the SAS 6Gb/s interface saturates.

How much noise and heat does the 2.5 inch 15000 RPM unit produce when running all day in a server?

At 15000 RPM the drive generates noticeable whine and measurable heat; adequate airflow across the 100.45 mm length is required for continuous operation.

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