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Silver 2.5 inch SAS hard drive with tray, 146GB 10000 RPM

HP

HP 431958-B21 146GB 10000 RPM SAS 2.5" laptop hard drive

SKU CH-YBSZ-3WV6A MPN 431958-B21

A 2.5 inch 146GB SAS enterprise drive spinning at 10000 RPM for HP laptops and servers

  • Total capacity146 GB
  • Interface typeSAS 3Gb/s
  • Form factor2.5 in (6.35 cm)
  • Rotational speed10,000 RPM
  • Key featuresSerial Attached SCSI is the logical evolution of SCSI, inclu
  • 146 GB capacity stores critical enterprise data
  • 10 000 RPM spindle delivers fast transaction throughput
  • SAS 3 Gb/s interface connects directly to HP servers
  • 5 inch form factor fits dense drive bays
  • Designed and validated for HP ProLiant systems

HP 146GB 10000 RPM SAS laptop drive

This new HP 431958-B21 is a 2.5 inch internal hard drive with a 146GB capacity and a 10000 RPM spindle speed. It uses a SAS 3Gb/s interface and is built for HP enterprise laptops and mobile workstations requiring high-speed storage. The drive ships in retail or OEM packaging depending on stock.

Suits HP mobile workstations with SAS support

Buyers whose system lacks a SAS controller cannot install this drive because the interface is SAS 3Gb/s. It is not for users needing larger capacity than 146GB or a lower spindle speed for quieter operation. The hot-swap tray fits compatible HP drive bays only.

SAS 3Gb/s interface defines compatibility

The single specification that decides fit is the SAS 3Gb/s interface; the host must provide a matching SAS backplane or controller. Without that connection the 146GB 10000 RPM mechanism cannot communicate with the system. Verify the laptop service manual for SAS support before purchase.

How it compares

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

Price $209.99
Pricier 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 $1,438.29 per TB
Pricier than about 90% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameHP
Model name431958-B21
Total capacity146 GB
Performance
Rotational speed10,000 RPM
Ports & slots
Interface typeSAS 3Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Shipping weight1.81 kg
Package size231 × 183 × 127 mm

Questions about this item

Does the 2.5" 431958-B21 drive come with the hot-swap tray needed for an HP server bay?

The product includes the hot-swap tray shown in the description, so the 2.5" drive can slide directly into a compatible HP SAS bay without a separate caddy.

What cable or backplane connection does the SAS 3Gb/s interface require during installation?

Connect the drive to a SAS backplane or controller using a standard SAS data and power connector; the single-port SAS interface mates directly with the backplane when the tray is fully seated.

Is the 10000 RPM mechanism sealed, or will the bearing need lubrication later?

The 10000 RPM mechanism is a sealed enterprise-class unit with no user-serviceable parts; no lubrication or internal maintenance is required during its service life.

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