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Silver 3.5 inch SAS hard drive with exposed circuit board

DELL

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

SKU CH-9ZHN-SFA3S

4 TB internal hard drive with 7200 RPM SAS 12Gb/s interface in 3.5 inch form factor

  • InterfaceSAS 12Gb/s
  • Capacity4TB
  • RPM7200 RPM
  • Form Factor3.5"
  • 4 TB capacity stores large datasets
  • 7200 RPM spindle speed delivers fast data access
  • SAS 12Gb/s interface enables high-throughput connectivity
  • 5-inch form factor fits standard drive bays
  • Hot-swap support allows drive replacement without downtime

Capacity and interface

This 4 TB drive uses a 12 Gb/s SAS connection in a 3.5 inch form factor. It is designed for internal desktop or server storage where high throughput and reliable data handling are required.

Thermals noise and power

The 7200 RPM spindle speed delivers consistent performance for near-line workloads. Power draw and acoustic output remain typical for enterprise-class SAS drives operating under normal desktop or rack conditions.

Build fit and requirements

The drive fits standard 3.5 inch internal bays and connects directly to a SAS controller or backplane. Hot-swap support allows removal without powering down the system when the chassis and controller permit it.

Punti di forza

  • 4 TB capacity stores large datasets
  • 7200 RPM spindle speed delivers fast data access
  • SAS 12Gb/s interface enables high-throughput connectivity
  • 5-inch form factor fits standard drive bays
  • Hot-swap support allows drive replacement without downtime

Caratteristiche tecniche

BrandDell
Model400-ALQD
InterfaceSAS 12Gb/s
Capacity4TB
RPM7200 RPM
Form Factor3.5"

Domande su questo articolo

How do I install the 400-ALQD in a SAS backplane and what step is often missed?

Slide the 3.5" drive into the hot-swap carrier until the SAS connector seats firmly, then lock the lever; the step most people skip is verifying the backplane runs at 12Gb/s so the 7200 RPM platters can deliver full throughput

What maintenance or replacement will the 400-ALQD need later?

No scheduled maintenance is required; replace the unit only if SMART attributes report reallocated sectors or the 4TB capacity becomes insufficient for the workload

What limit appears first on the 400-ALQD during sustained writes?

The 12Gb/s SAS interface and 7200 RPM spindle cap sequential throughput, so sustained writes will hit the interface bandwidth ceiling before thermal throttling engages

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