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Silver 3.5 inch SAS hard drive bare unit with hot-swap tray handle

DELL

DELL 400-ALCM 6TB 3.5" SAS 12Gb/s 7200 RPM internal hard drive

SKU CH-9ACA-A7Z76

Stores 6TB of data on a 3.5" SAS drive spinning at 7200 RPM with a 12Gb/s interface and hot-swap support

  • Total capacity6 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • 6 TB capacity stores large datasets on a single drive
  • SAS 12 Gb/s interface moves data quickly through the bus
  • 7200 RPM spindle keeps throughput steady for nearline workloads
  • 5 inch form factor fits standard server bays and trays
  • Hot-swap tray lets you replace the drive without powering down

6 TB Nearline SAS Drive

The Dell 400-ALCM is a 6 TB 3.5" Nearline SAS hard drive spinning at 7200 RPM for bulk storage in servers and storage arrays. It uses a 12Gb/s SAS interface and ships as a bare drive with a hot-swap tray for tool-less replacement in compatible bays.

Compatibility Checks

Verify that your backplane or controller supports 12Gb/s SAS and can supply adequate power for a 3.5" nearline drive. Confirm the chassis accepts hot-swap trays of this form factor and that your RAID or HBA firmware recognises the 6 TB capacity.

Sustained Workload Behaviour

Designed for continuous operation, the 7.2K spindle delivers steady throughput for sequential workloads such as backup, archiving and media repositories. The Nearline class prioritises consistent latency over burst speed, making it suited to always-on environments rather than high-IOPS transactional databases.

How it compares

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

Price $141.99
Pricier than about 58% of the 4,938 comparable items (median $107.99).
Total capacity 6 TB
Higher than about 75% of the 2,372 comparable items (median 2 TB).
Price per TB $23.67 per TB
Cheaper than about 90% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameDell
Model name400-ALCM
Total capacity6 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

Does the 400-ALCM drive ship with a mounting tray or cables?

The drive is supplied as a bare unit without a tray or cables; a compatible hot-swap carrier and SAS data cable must be sourced separately.

Which SAS 12Gb/s 3.5" capacity should I choose for a Dell PowerEdge bay?

This model provides 6TB at 7200 RPM; select it when you need that exact capacity and speed combination for the bay.

What sustained throughput can I expect from the 12Gb/s interface in a RAID array?

The 7200 RPM platters typically deliver sequential reads around 200 MB/s, so the 12Gb/s link will not be the bottleneck in a RAID set.

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