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Small silver 2.5 inch SAS hard drive with black mounting tray

DELL

DELL X143K 146GB 2.5" SAS 10000 RPM internal hard drive

SKU CH-WFB9-H39NA

A 146 GB 2.5-inch SAS hard drive spinning at 10000 RPM with a 16 MB buffer for high-speed server storage

  • Total capacity146 GB
  • Interface typeSAS 6Gb/s
  • Form factor2.5 in (6.35 cm)
  • Rotational speed10,000 RPM
  • 10 000 RPM for fast data access
  • SAS 6Gb/s interface for reliable throughput
  • 146 GB capacity fits compact server builds
  • 5 inch form factor saves drive-bay space
  • Includes tray for direct Powervault installation

Dell 146GB 2.5" SAS drive purpose

This Dell X143K is a 146GB 2.5 inch internal hard drive spinning at 10000 RPM with a SAS 6Gb/s interface. It ships new with a tray for direct installation in compatible PowerVault servers or storage arrays. The 16MB buffer supports consistent throughput for enterprise workloads.

Suitable workloads and limits

The 10000 RPM spindle and SAS interface suit transactional databases, virtualisation hosts and logging arrays that demand low latency and sustained write performance. Buyers needing larger single-drive capacities or solid-state silence should consider alternative media. The 2.5 inch form factor limits use to bays or enclosures designed for that size.

146GB capacity decides fit

At 146GB the drive fills a specific niche: replacing failed disks in existing RAID sets or expanding legacy arrays where larger drives would exceed controller addressing limits. Verify the target system accepts 146GB SAS disks 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 $28.99
Cheaper than about 92% 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 $198.56 per TB
Pricier than about 78% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Total capacity146 GB
Performance
Rotational speed10,000 RPM
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor2.5 in (6.35 cm)

Questions about this item

What does the 10000 RPM spindle speed mean for everyday server workloads?

The 10000 RPM rotation reduces average rotational latency, giving quicker random read and write response times for transaction-heavy applications.

How does the SAS 6Gb/s interface limit real-world throughput?

The SAS 6Gb/s link caps the maximum burst transfer rate at 6 gigabits per second, so sustained sequential speeds cannot exceed that ceiling.

Will the 2.5 inch form factor fit directly into a standard 3.5 inch drive bay?

The 2.5 inch drive requires a 2.5 inch bay or an adapter bracket to mount securely in a 3.5 inch slot.

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