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Silver 2.5 inch SAS hard drive with hot-swap tray

DELL

DELL 400-AUWU 1.2TB 2.5" SAS 10K 12Gb/s laptop hard drive

SKU CH-MTWA-D8DCR

A 1.2 TB 2.5-inch SAS drive spinning at 10,000 RPM with a 12 Gb/s interface and hot-swap capability

  • Key featuresHard Drive
  • 2 TB capacity stores large datasets
  • 10 000 RPM spindle speed delivers fast disk access
  • SAS 12 Gb/s interface enables high data transfer rates
  • Hot-swap support allows drive replacement without downtime
  • 5 inch form factor fits standard laptop bays

Dell 1.2 TB SAS Hard Drive

This Dell 400-AUWU drive adds 1.2 TB of internal storage to compatible laptops or servers. It spins at 10,000 RPM and uses a SAS 12 Gb/s interface for fast disk access. The 2.5 inch form factor fits standard drive bays. It is sold new in retail or OEM packaging.

SAS 12 Gb/s Interface Limits

The SAS 12 Gb/s interface provides high data transfer speeds but requires a controller that supports this standard. Maximum throughput depends on the host controller and system workload. The drive uses 512 native sector formatting. Hot-swap capability works only when the backplane and controller both support hot-plug operation.

Check Controller and Bay Compatibility

Verify that your system has a 2.5 inch drive bay and a SAS controller compatible with 12 Gb/s speeds. Confirm the backplane supports hot-plug if you plan to swap drives while powered on. Ensure the operating system recognises 512n sector drives without additional drivers.

How it compares

Measured against everything we stock in 2.5-Inch Internal Laptop HDDs, at today’s prices. Recalculated every night.

Price $96.99
Pricier than about 64% of the 645 comparable items (median $66.99).

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Specifications

Product
Brand nameDell

Questions about this item

Is the 1.2 TB capacity the only option for this Dell 400-AUWU drive?

The manufacturer lists this part with a single 1.2 TB capacity; no other sizes are associated with the 400-AUWU part number.

What does the 10,000 RPM spindle speed deliver in a live system?

The 10,000 RPM rotation provides fast disk access and strong sustained throughput for transactional workloads and database tasks.

How does the 12 Gb/s SAS interface limit real-world performance?

The 12 Gb/s SAS link sets the maximum bus bandwidth, so actual throughput will not exceed that ceiling even if the drive media could go faster.

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