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Silver 3.5 inch SAS hard drive in tray, 4TB 7200 RPM

DELL

DELL 400-ALNY 4TB 7.2K SAS 12Gb/s 3.5" HDD KIT FS internal hard drive

SKU CH-K481-PDG2D MPN 400-ALNY

A 4 TB SAS hard drive with a 12 Gb/s interface, 7200 RPM speed and 3.5 inch form factor

  • Total capacity4 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • 4 TB capacity stores large datasets and backups
  • 7200 RPM spindle delivers responsive read and write performance
  • SAS 12 Gb/s interface enables fast data transfer to the controller
  • 5 inch form factor fits standard desktop drive bays
  • New condition ensures full manufacturer-rated reliability

Dell 4TB SAS 12Gb/s 3.5" HDD Kit

This Dell 400-ALNY kit provides a 4TB 3.5-inch hard drive with a SAS 12Gb/s interface spinning at 7200 RPM. It is built for desktop or server chassis that accept 3.5-inch SAS drives and includes the carrier required for Dell systems. The drive delivers high-capacity sequential storage for bulk data workloads. Condition is new.

Suits capacity-focused arrays and cold storage tiers

This drive suits administrators expanding storage pools, backup targets or media archives where large sequential throughput matters more than random access speed. It is not for workloads that demand low latency or high random IOPS; those remain better served by faster-spinning drives or flash media. Systems without a SAS backplane or controller cannot use this drive.

SAS 12Gb/s interface

The single specification that decides fit is the SAS 12Gb/s interface. Your host bus adapter, backplane or RAID controller must support 12Gb/s SAS to realise the rated transfer rate; a 6Gb/s-only controller will limit performance. Verify that your chassis accepts a 3.5-inch drive with the supplied carrier before ordering.

How it compares

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

Price $251.99
Pricier than about 77% 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 $63.00 per TB
Typical for this category: the median of 2,365 items is $62.21 per TB.

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Specifications

Product
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

Should I choose the 4 TB model or look for a different capacity?

This kit is supplied only as a 4 TB drive. If you need more or less storage, you would have to select a different part number.

What does the 7.2K 7200 RPM rating mean for everyday performance?

The 7200 RPM spindle speed gives faster sequential throughput and lower latency than slower nearline drives, so large file copies and database scans complete more quickly.

How does the SAS 12Gb/s interface affect real-world speed?

The 12 Gb/s SAS link provides up to 12 Gbit/s bandwidth to the controller; actual sustained transfer is limited by the 7200 RPM mechanical performance of the drive itself.

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