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A 3.5 inch bare hard drive with a silver metal casing and circuit board visible

DELL

DELL 400-AIWW 4TB 3.5" SAS 7200 RPM internal hard drive

SKU CH-TKXC-HPN67

A 4 TB 3.5-inch SAS hard drive spinning at 7200 RPM with a 12 Gb/s interface and hot-swap capability

  • Total capacity4 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Mean latency12Gb/s
  • 4TB capacity stores large data sets
  • 12Gb/s SAS interface enables fast data transfer
  • 7200 RPM spindle speed supports responsive performance
  • 5 inch form factor fits standard drive bays
  • Hot-swap tray allows drive replacement without system shutdown

Dell 4TB Nearline SAS 7.2K drive

This Dell 400-AIWW is a new 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 ships as a bare drive with a hot-swap tray design.

Suits servers and arrays that accept 12Gb/s SAS

Administrators expanding Dell PowerEdge or compatible storage enclosures can slot this drive directly into 3.5-inch hot-swap carriers. Systems limited to slower SAS generations or lacking hot-swap backplanes cannot take full advantage of the 12Gb/s transfer rate.

SAS 12Gb/s interface and 7200 RPM spindle

The 12Gb/s SAS link and 7.2K rotational speed together define the sustained throughput and latency profile. Match these two figures to your controller and workload requirements before purchasing.

How it compares

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

Price $222.99
Pricier than about 73% 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 $55.75 per TB
Cheaper than about 56% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameDell
Model name400-AIWW
Total capacity4 TB
Performance
Rotational speed7,200 RPM
Mean latency12Gb/s
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

How does a 7200 RPM speed translate to everyday performance in a server or workstation?

The 7200 RPM spindle delivers consistent throughput for sequential workloads such as backups, video archives and bulk storage, with average latency suited to nearline access patterns.

What does the SAS 12Gb/s interface cap at in real-world use?

The SAS 12Gb/s link provides up to 12 Gbit/s bandwidth per port, though sustained rates depend on the controller, cable length and the drive’s own media transfer limits.

Will this 3.5-inch drive fit a standard hot-swap tray or bay?

Yes, the 3.5-inch form factor matches standard hot-swap carriers used in Dell PowerEdge and compatible enclosures; the drive ships bare so you supply the tray.

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