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Silver 2.5 inch SAS hard drive with green circuit board visible

DELL

DELL ST9900805SS 900GB 10000RPM 2.5" SAS internal hard drive

SKU CH-2TJE-BEF3S MPN ST9900805SS

A 900 GB 2.5 inch SAS drive spinning at 10000 RPM for high-performance storage

  • Capacity900GB
  • Flash Memory Capacity900GB
  • RPM10000 RPM
  • Form Factor2.5"
  • 900 GB capacity stores large datasets
  • 10000 RPM spindle speeds up data access
  • 5 inch form factor fits dense server bays
  • SAS interface delivers 6 Gbps throughput
  • New condition ensures full factory reliability

Enterprise storage capacity

The Dell ST9900805SS provides 900GB of storage in a 2.5" form factor. It spins at 10000 RPM and connects through a SAS 6 Gbps interface. This drive is built for enterprise servers and storage arrays that need high transaction rates. It suits IT managers who need reliable capacity for database or virtualisation workloads.

Thermal and power profile

The 10000 RPM spindle speed produces more heat and vibration than slower drives. Adequate airflow in the drive bay is required to keep temperatures in check. Power draw rises during heavy random I/O, so the host backplane must supply sufficient current. Acoustic output is noticeable in quiet rack environments.

Packaging and compatibility

Retail or OEM packing may vary, so mounting screws, caddies or cables are not guaranteed. The drive uses a standard SAS connector compatible with 6 Gbps backplanes and controllers. No management software or firmware utilities are bundled with the unit. Buyers needing hot-swap trays or RAID licences must source them separately.

Highlights

  • 900 GB capacity stores large datasets
  • 10000 RPM spindle speeds up data access
  • 5 inch form factor fits dense server bays
  • SAS interface delivers 6 Gbps throughput
  • New condition ensures full factory reliability

Specifications

BrandDELL
ModelST9900805SS
Capacity900GB
Flash Memory Capacity900GB
RPM10000 RPM
Form Factor2.5"

Questions about this item

How do I install this 2.5" SAS drive in a 3.5" bay and what step is often missed?

Mount the drive in a 2.5-to-3.5 adapter tray, connect the SAS data and power cables to the controller, and ensure the backplane or HBA port is set to 6 Gbps mode so the link negotiates at full speed.

What maintenance or replacement will this 10000 RPM drive need over time?

Mechanical wear on the spindle motor and actuator means the drive should be monitored via SMART for reallocated sectors; plan replacement once error counts rise or after the rated annualised failure rate window for enterprise SAS drives.

What limit appears first when this 900GB SAS drive runs sustained workloads?

The 6 Gbps SAS interface caps sustained transfer before the 10000 RPM platters reach their peak media rate, so sequential throughput plateaus at the link ceiling during long writes.

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