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IBM 2.5 inch SAS hard drive silver metal casing

IBM

IBM 42D0637 300GB 10000 RPM 16MB SAS 6Gb/s 2.5" laptop hard drive

SKU CH-BJKA-0GR2E MPN 42D0637

A 300 GB, 10000 RPM SAS drive with 16 MB cache and 2.9 ms seek time for server workloads

  • Total capacity300 GB
  • Interface typeSAS 6Gb/s
  • Form factor2.5 in (6.35 cm)
  • Cache memory16 MB
  • Average seek time2.9 ms
  • Mean latency2 ms
  • 10000 RPM spindle enables rapid data access for demanding server workloads
  • 16 MB cache buffers bursts of read and write operations to maintain throughput
  • SAS 6Gb/s interface provides a 6 Gb/s link for reliable host connectivity
  • 5 inch form factor fits dense drive bays in rack and blade servers
  • 300 GB capacity stores operating systems, applications and critical data sets

Server-Class 300GB SAS Drive

This IBM 42D0637 is a 300GB 2.5" internal hard drive spinning at 10000 RPM with a SAS 6Gb/s interface and 16MB cache. It is built for server environments where consistent throughput and hot-swap capability matter. The drive arrives new in retail or OEM packaging.

Suits High-IO Server Bays

The 10000 RPM spindle and 2.9ms average seek time serve workloads that demand quick random access, such as transactional databases or virtualisation hosts. The SAS 6Gb/s link and hot-swap support fit directly into compatible enterprise backplanes. Buyers needing a different capacity or a non-SAS interface should consider other options.

Deciding Spec Is SAS 6Gb/s Interface

The single specification that decides fitment is the SAS 6Gb/s interface; the drive will only operate in controllers and backplanes that support this protocol. Verify that your server or storage array accepts 2.5" SAS drives 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 $188.99
Pricier than about 83% of the 645 comparable items (median $66.99).
Total capacity 300 GB
Lower than about 60% of the 419 comparable items (median 320 GB).
Price per TB $629.97 per TB
Pricier than about 82% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameIBM
Model name42D0637
Total capacity300 GB
Recommended useIdeal for Servers
Performance
Average seek time2.9 ms
Mean latency2 ms
Rotational speed10,000 RPM
Storage
Cache memory16 MB
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Shipping weight0.91 kg
Package size216 × 184 × 83 mm

Questions about this item

Does my system need a SAS 6Gb/s backplane or controller for the 42D0637 to operate?

Yes, the drive uses a SAS 6Gb/s interface and requires a compatible SAS controller or backplane that supports 6 Gb/s signalling.

Can the 2.5 inch 10000 RPM drive share a SAS expander with older 3 Gb/s SAS disks?

The 42D0637 will negotiate down to 3 Gb/s on a shared expander, so it works alongside legacy SAS drives at the slower link speed.

How can I confirm the 42D0637 is running at its rated 10000 RPM and 2.9 ms seek time after installation?

Check the drive’s SMART data or controller BIOS; they report spindle speed and seek-performance metrics that should match the 10000 RPM and 2.9 ms specifications.

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