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Silver 3.5 inch SATA hard drive with circuit board visible

DELL

DELL N36YX 4TB 7.2K SATA 3.5" 6Gbps internal hard drive

SKU CH-9NDK-TB5ZB

A 4 TB desktop hard drive with a 7200 RPM spindle and SATA 6.0 Gb/s interface in a 3.5-inch form factor

  • Total capacity4 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • 4TB capacity stores large media libraries and backups
  • 7200 RPM spindle speed delivers quick file access
  • SATA 6.0Gb/s interface provides high throughput
  • 5-inch form factor fits standard desktop bays
  • New condition ensures full manufacturer reliability

Purpose-built storage

The Dell N36YX is a 4TB 3.5-inch internal hard drive designed for desktop systems that need large-capacity bulk storage. It suits users who archive media libraries, keep local backups or run workloads where sequential throughput matters more than random access speed.

Thermals and acoustics

At 7200 RPM the drive generates moderate heat and audible seek noise typical of performance-class desktop disks. Power draw scales with the SATA 6.0Gb/s interface during active transfers, while idle consumption drops to a low level suitable for always-on desktop operation.

Sustained workload behaviour

Continuous write or read sessions keep the platters spinning at full speed, so temperatures stabilise above idle but remain within normal desktop drive limits. The mechanical actuator produces a steady acoustic signature during long transfers, and throughput holds close to the SATA interface ceiling without the thermal throttling seen in smaller form factors.

How it compares

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

Price $112.99
Typical for this category: the median of 4,938 items is $107.99.
Total capacity 4 TB
Higher than about 70% of the 2,372 comparable items (median 2 TB).
Price per TB $28.25 per TB
Cheaper than about 85% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Total capacity4 TB
Performance
Rotational speed7,200 RPM
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

How do I install the 3.5" SATA 6.0Gb/s drive and which step is often missed?

Mount the drive in a 3.5" bay, connect the SATA data cable to the motherboard port and the SATA power cable from the PSU; the step often missed is securing both cable ends firmly so they do not work loose.

What maintenance or replacement will the 7200 RPM 4TB drive need later?

No routine maintenance is required; keep the system dust-free and monitor SMART attributes — if reallocated sectors or seek errors rise, plan a replacement.

What limit appears first on the 7200 RPM SATA drive during sustained transfers?

The sustained transfer rate is capped by the 7200 RPM mechanical throughput and the SATA 6.0Gb/s interface ceiling, whichever is lower for the workload.

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