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HP 2.5 inch SAS hard drive silver metal casing 146GB 15000 RPM

HP

HP 512547-S21 146GB 15000 RPM SAS 2.5" internal hard drive

SKU CH-6S6P-RF1TV MPN 512547-S21

A 146GB 15000 RPM SAS 2.5" internal hard drive with 600 MBps transfer rate for high-performance storage

  • Total capacity146 GB
  • Interface type2 x SAS 600 Serial Attached SCSI
  • Form factor2.5 in (6.35 cm)
  • Rotational speed15,000 RPM
  • Max height9.5 mm
  • Maximum width69.75 mm
  • 15000 RPM spindle speed delivers fast data access for demanding workloads
  • Dual SAS 600 interfaces provide 600 MBps external transfer rate for high throughput
  • 146 GB capacity in a 2.5 inch form factor fits dense server and storage arrays
  • 5 mm height and compact dimensions enable installation in space-constrained bays
  • HP Qualified Option engineering ensures reliable operation in compatible HP systems

146 GB 15 000 RPM SAS drive for servers

This 2.5-inch HP drive delivers 146 GB of storage at 15 000 RPM for high-transaction workloads. The dual-port SAS 600 interface supports multipath I/O and hot-plug capability in compatible enclosures. It is built for enterprise arrays that demand consistent low-latency access.

SAS 600 interface limits

The 600 MBps maximum external transfer rate is the ceiling for sustained sequential throughput on this interface. Dual ports provide redundancy, not aggregated bandwidth, so a single stream cannot exceed the link speed. Cable length and backplane quality also affect real-world performance.

Verify controller and bay compatibility

Confirm your RAID controller or HBA supports 6 Gb/s SAS and 2.5-inch 9.5 mm high drives. The 100.3 mm length must fit your drive tray or backplane slot. Ensure firmware and driver revisions are current for the 512547-S21 part number.

How it compares

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

Price $202.99
Pricier than about 69% 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 $1,390.34 per TB
Pricier than about 91% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameHP
Model name512547-S21
Total capacity146 GB
Performance
Rotational speed15,000 RPM
Ports & slots
Interface type2 x SAS 600 Serial Attached SCSI
Size & build
Form factor2.5 in (6.35 cm)
Max height9.5 mm
Maximum width69.75 mm
Maximum length100.3 mm
Shipping weight0.91 kg
Package size229 × 178 × 127 mm

Questions about this item

Which capacity of the HP 512547-S21 should I choose for a 15000 RPM SAS drive?

This model is only offered as 146GB; there are no other capacities listed for this part number.

What does the 15000 RPM figure mean once the drive is installed in a server?

The spindle rotates at 15000 RPM, giving low latency for random I/O workloads such as databases or transaction logs.

What does the 2 x SAS 600 interface cap at in practice?

The dual-port SAS 600 interface supports a maximum external transfer rate of 600 MBps per port.

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