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Silver 3.5 inch internal hard drive with exposed circuit board, no mounting tray

DELL

DELL 400-AUWK 12TB 3.5" SATA 7200 RPM internal hard drive

SKU CH-4196-QEB84 MPN 400-AUWK

A 12 TB 3.5" SATA internal hard drive spinning at 7200 RPM with a 256 MB buffer for high-capacity desktop storage

  • Total capacity12 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Massive 12 TB capacity stores huge datasets
  • 7200 RPM spindle speed delivers responsive data access
  • SATA 6.0 Gb/s interface enables fast transfer rates
  • 256 MB buffer smooths burst workloads
  • Hot-pluggable 3.5" design simplifies server maintenance

Capacity and interface

The Dell 400-AUWK is a 12TB 3.5-inch internal hard drive with a SATA 6.0Gb/s interface and 7200 RPM spindle speed. It uses a 512e disk format and includes a 256 MB buffer. The drive is designed for nearline storage workloads in compatible Dell systems.

Build integration

This bare drive requires a standard 3.5-inch bay and a SATA data plus power connection. It supports hot-plug and hot-swap operation in supported Dell PowerEdge servers, allowing insertion or removal without powering down the chassis. No mounting tray is included in the package.

Upgrade context

The drive replaces lower-capacity 3.5-inch SATA hard drives in supported Dell PowerEdge models such as the R330, R430, R730, R730XD, R730xd XL and T430. The jump is worthwhile when additional nearline storage is needed for archival, backup or bulk data workloads within those validated server platforms.

How it compares

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

Price $630.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 12 TB
Higher than about 90% of the 2,372 comparable items (median 2 TB).
Price per TB $52.58 per TB
Cheaper than about 59% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameDell
Model name400-AUWK
Total capacity12 TB
Performance
Rotational speed7,200 RPM
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.68 kg
Package size140 × 89 × 51 mm

Questions about this item

How does the 7200 RPM spindle speed affect sustained write throughput?

The 7200 RPM spindle speed and 256 MB buffer deliver consistent sequential performance for large-file workloads.

What is the typical noise and heat output when the drive runs continuously?

As a 3.5 inch nearline drive, it produces standard enterprise-level acoustics and heat; ensure your chassis provides adequate airflow.

Which drive trays or caddies are required to install this bare drive in a compatible server?

This bare drive requires a Dell 3.5 inch hot-plug tray; compatible systems include PowerEdge R330, R430, R730, R730xd, R730xd XL and T430.

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