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Silver 3.5 inch SAS hard drive with circuit board visible

DELL

DELL 400-ALRY 4TB 3.5" SAS 12Gb/s 7200 RPM internal hard drive

SKU CH-5WSS-72RDC

A 4TB 3.5" SAS 12Gb/s hard drive spinning at 7200 RPM for nearline storage

  • Total capacity4 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • 4 TB capacity stores large data sets
  • SAS 12Gb/s interface enables fast data transfer
  • 7200 RPM spindle speed delivers responsive performance
  • 5 inch form factor fits standard drive bays
  • Hot-swap tray allows drive replacement without shutdown

Dell 400-ALRY 4TB SAS Drive

This Dell 400-ALRY is a 4TB 3.5-inch internal hard drive built for nearline workloads. It spins at 7200 RPM and connects through a SAS 12Gb/s interface. The unit is supplied new and supports hot-swap installation.

Suits arrays needing high-capacity nearline storage

The drive fits servers and storage arrays that take 3.5-inch SAS drives and benefit from 4TB of nearline capacity. It is not for systems limited to 2.5-inch bays or interfaces other than SAS.

SAS 12Gb/s interface confirms host compatibility

The single specification that decides fit is the SAS 12Gb/s interface; the host backplane or controller must support this exact protocol. Verify the connection type before purchase.

How it compares

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

Price $241.99
Pricier than about 75% of the 4,938 comparable items (median $107.99).
Total capacity 4 TB
Higher than about 70% of the 2,372 comparable items (median 2 TB).
Price per TB $60.50 per TB
Typical for this category: the median of 2,365 items is $62.21 per TB.

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Specifications

Product
Brand nameDell
Model name400-ALRY
Total capacity4 TB
Performance
Rotational speed7,200 RPM
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

What drive bay size and tray type does the 400-ALRY require?

The 400-ALRY fits a standard 3.5-inch bay and uses a hot-swap tray, so it slides directly into a compatible caddy without tools.

How do you install the 400-ALRY in a Dell server and what step is often missed?

Insert the drive into the hot-swap bay until the carrier clicks; the step often missed is verifying the SAS 12Gb/s backplane negotiates the full 12 Gb/s link speed.

When will the 400-ALRY need replacement in a 7200 RPM nearline workload?

Plan replacement when SMART attributes show rising reallocated-sector counts or after the rated annualised workload limit for nearline SAS drives is reached.

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