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Silver 2.5 inch SAS hard drive with label

HP

HP 512547-B21 146GB SAS 15K 2.5 laptop hard drive

SKU CH-Y28B-66A70

146 GB SAS hard drive spins at 15000 RPM for high-performance server storage in a 2.5 inch form factor

  • Total capacity146 GB
  • Interface typeSerial Attached SCSI (SAS)
  • Form factor2.5 in (6.35 cm)
  • Flash memory typeHard Drive
  • Rotational speed15,000 RPM
  • Recommended useIdeal for Servers
  • 15 000 RPM spindle speed accelerates transaction-heavy workloads
  • Dual-port SAS interface provides redundant data paths for uptime
  • 146 GB capacity fits dense 2.5-inch server bays
  • Enterprise-grade SAS engineering protects data integrity under load
  • New condition ensures full manufacturer specifications from day one

HP 146GB SAS 15K 2.5 Drive

This 146GB SAS hard drive spins at 15000 RPM and uses a 2.5-inch form factor. It is built for enterprise servers that demand high transaction throughput. The dual-port SAS interface supports 6G speeds for reliable data integrity. It suits IT teams running mission-critical workloads on HPE hardware.

Dual-Port SAS Server Integration

The drive fits 2.5-inch SFF bays with standard hot-plug or non-hot-plug carriers. Its SAS interface connects directly to compatible RAID controllers or backplanes without extra adapters. Dual-port architecture provides path redundancy for continuous availability. It frees up 3.5-inch LFF slots for higher-capacity midline drives.

146GB Capacity For Hot Data

The 146GB capacity handles operating systems, databases and high-IOPS applications comfortably. It runs out when workloads exceed 600GB or require 1.8TB 10K alternatives. Heavy media archives or backup targets need larger 7.2K LFF drives. This drive targets the performance tier, not bulk storage.

How it compares

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

Price $35.99
Cheaper than about 85% of the 645 comparable items (median $66.99).
Total capacity 146 GB
Lower than about 80% of the 419 comparable items (median 320 GB).
Price per TB $246.51 per TB
Typical for this category: the median of 416 items is $233.48 per TB.

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Specifications

Product
Brand nameHP
Model name512547-B21
Total capacity146 GB
Recommended useIdeal for Servers
Performance
Rotational speed15,000 RPM
Storage
Flash memory typeHard Drive
Ports & slots
Interface typeSerial Attached SCSI (SAS)
Size & build
Form factor2.5 in (6.35 cm)

Questions about this item

What limits the 15000 RPM drive under sustained use?

The 15000 RPM spindle speed and SAS interface define the sustained performance ceiling of this 2.5-inch drive.

How much noise, heat or power does the 146GB SAS drive produce all day?

The 15000 RPM enterprise drive generates typical high-speed SAS heat and audible noise during continuous server operation.

What must I already own for this 512547-B21 drive to work?

A server or controller with a SAS backplane or cable that accepts a 2.5-inch dual-port SAS drive is required.

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