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Silver 2.5 inch SAS hard drive with circuit board visible

DELL

DELL 401-AASN 1.8TB 2.5" SAS 10K 12Gb/s internal hard drive

SKU CH-WDDX-7AJF4

1.8 TB SAS internal hard drive with 10K RPM and 12 Gb/s transfer rate for 2.5-inch bays

  • Flash memory typeSLC
  • 8 TB capacity stores large datasets
  • 10K RPM spindle delivers fast data access
  • 12 Gb/s SAS interface enables high throughput
  • 5 inch form factor fits dense server bays

Dell 401-AASN 1.8TB SAS enterprise drive

This Dell 401-AASN is a 1.8TB 2.5-inch SAS drive spinning at 10K RPM with a 12Gb/s interface. It is built for servers and storage arrays that need consistent throughput for database or virtualisation workloads. The non hot-swap design suits fixed-bay chassis where drives are not changed while the system runs. SLC NAND flash memory supports the controller for reliable write performance.

Thermals noise and power in normal use

The 10K RPM spindle generates measurable heat so adequate chassis airflow is required to keep temperatures in spec. Acoustic output is typical for enterprise 10K drives and will be audible in quiet offices. Power draw follows standard SAS 12Gb/s patterns during sequential and random access. No hot-swap carrier means the drive draws power directly from the backplane without additional circuitry.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $90.99
Cheaper than about 55% of the 4,938 comparable items (median $107.99).

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Specifications

Storage
Flash memory typeSLC

Questions about this item

How do I install the 401-AASN 2.5" SAS drive in a 3.5" bay and which step is often missed?

Use a 2.5-to-3.5 inch adapter bracket, secure the drive with four screws, connect the SAS data and power cables, and ensure the backplane or controller is set to 12Gb/s mode — the speed negotiation step is frequently overlooked.

What maintenance or replacement will the 1.8TB 10K SAS drive need over its service life?

The SLC NAND cache does not require wear-leveling attention; monitor SMART reallocated-sector counts and replace the unit if the grown-defect list exceeds the controller threshold or if bearing noise appears after years of 10K RPM operation.

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