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Silver 2.5 inch SAS hard drive with Dell label

DELL

DELL ST91000640SS 1000GB 7200RPM 64MB 2.5" SAS internal hard drive

SKU CH-FZK9-MKXPR

2.5-inch SAS hard drive delivers 1000GB capacity at 7200RPM with 64MB cache

  • 1 TB capacity for large datasets
  • 7200 RPM spindle speed for responsive access
  • 64 MB cache buffers frequent reads
  • SAS 6 Gb/s interface suits server bays
  • 5 inch form factor fits dense enclosures

1 TB SAS drive for servers and arrays

The Dell ST91000640SS is a 1000 GB internal hard drive spinning at 7200 RPM with a 64 MB cache. It uses a 2.5 inch SAS 6 Gb/s interface designed for enterprise storage systems and compatible Dell servers.

Check SAS controller and bay clearance

Verify that your host has a SAS backplane or controller supporting 6 Gb/s links and that the 2.5 inch drive bay accepts the standard enterprise form factor. Confirm firmware compatibility with the Constellation.2 series before installation.

Fits 2.5 inch hot-swap trays and RAID sets

The drive slides directly into 2.5 inch hot-swap carriers used in Dell PowerEdge and similar chassis, requiring no adapter brackets. Its SAS interface enables dual-port redundancy and allows mixing with other SAS disks in RAID arrays.

Highlights

  • 1 TB capacity for large datasets
  • 7200 RPM spindle speed for responsive access
  • 64 MB cache buffers frequent reads
  • SAS 6 Gb/s interface suits server bays
  • 5 inch form factor fits dense enclosures

Specifications

No published specifications for this item yet.

Questions about this item

Does the ST91000640SS ship with any cables, brackets or mounting hardware, or do I need to buy those separately?

The drive is supplied as a bare 2.5" SAS unit; no data cable, power adapter or mounting bracket is included, so you will need to source a compatible SAS cable and a 2.5" drive tray or caddy for your chassis.

The listing mentions a single 1000GB 7200RPM 64MB model — are there other capacities or cache sizes I should consider?

Only the 1000GB capacity with 64MB cache and 7200RPM spindle speed is offered for this ST91000640SS part number; no alternative capacities or buffer sizes exist under the same model.

What does the 6Gb/s SAS interface mean for actual throughput once the drive is installed in a server or RAID controller?

The 6Gb/s SAS link provides a maximum interface bandwidth of 6 gigabits per second; real-world sustained transfer will be limited by the 7200RPM mechanical speed and 64MB cache, typically delivering well below the interface ceiling.

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