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HPE 300 GB 15000 RPM SAS hard drive in 2.5 inch tray

HPE

HPE 431944-B21 300GB SAS 15000 RPM 2.5" internal hard drive

SKU CH-GF7T-7S2YS

300 GB 2.5-inch SAS hard drive spinning at 15000 RPM with hot-plug tray for enterprise servers

  • Total capacity300 GB
  • Interface typeSAS 3Gb/s
  • Form factor2.5 in (6.35 cm)
  • Rotational speed15,000 RPM
  • 300 GB capacity supports demanding workloads
  • 15 000 RPM spindle speed delivers fast data access
  • SAS 3 Gb/s interface provides reliable connectivity
  • 5 inch form factor fits dense server bays
  • Hot-plug tray enables drive swaps without downtime

HPE 300GB SAS 15K 2.5" Drive

This new HPE 300GB SAS hard drive spins at 15000 RPM in a 2.5-inch form factor. It uses a single-port SAS 3Gb/s interface and ships with a hot-plug tray attached. The drive is built for enterprise server environments that demand high transaction throughput. Part number 431944-B21 identifies this specific model.

Suits Single-Port SAS Bays

Buyers who need a 300GB 15K RPM drive for a single-port SAS 3Gb/s backplane will find this unit matches the required interface and form factor. The hot-plug tray allows replacement without powering down the server. Systems that require dual-port SAS connectivity or a native 3.5-inch large form factor chassis should look at a different drive. The 2.5-inch size fits small form factor bays only.

Single-Port SAS 3Gb/s Interface

The single-port SAS 3Gb/s connection is the specification that determines compatibility with the host controller and backplane. Dual-port controllers will not gain path redundancy from this drive. The 15000 RPM spindle speed and 300GB capacity are fixed characteristics of this model. Verify that the server accepts a 2.5-inch drive in a hot-plug carrier 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 $27.99
Cheaper than about 92% 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 $93.30 per TB
Pricier than about 62% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameHP
Part number431944-B21
Total capacity300 GB
Performance
Rotational speed15,000 RPM
Ports & slots
Interface typeSAS 3Gb/s
Size & build
Form factor2.5 in (6.35 cm)

Questions about this item

Which capacity of the HPE 431944-B21 should I choose for a high-transaction server?

The drive provides 300GB of storage on a SAS 3Gb/s interface, suited for enterprise workloads that demand fast, consistent access.

What does the 15000 RPM rating mean when the drive is installed in a server?

The spindle spins at 15000 RPM, delivering low latency and high IOPS for mission-critical applications that require rapid data retrieval.

How does the SAS 3Gb/s interface limit real-world throughput?

The SAS 3Gb/s link caps the maximum transfer rate at 3 gigabits per second, so sustained reads and writes cannot exceed that bandwidth.

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