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Silver 3.5 inch enterprise hard drive bare unit

Seagate

Seagate ST4000NM004A 3.5" 4TB SAS 12Gb/s 7200 RPM 256MB rackmount NAS

SKU CH-9TH6-X0JQT MPN ST4000NM004A

A 4 TB enterprise hard drive with a 12 Gb/s SAS interface, 7200 RPM speed and 256 MB cache

  • PackagingBare Drive
  • InterfaceSAS 12Gb/s
  • Capacity4TB
  • RPM7200 RPM
  • UsageFor Enterprise Storage
  • Form Factor3.5"

Options 4TB

  • Enterprise capacity with 4 TB storage
  • High-speed SAS 12 Gb/s interface
  • Fast 7200 RPM spindle for quick access
  • Large 256 MB cache boosts throughput
  • 5-inch form factor fits standard bays

Enterprise 4 TB SAS Drive

The Seagate ST4000NM004A is a 3.5 inch hard drive built for enterprise storage arrays and rackmount NAS systems. It delivers 4 TB of capacity through a SAS 12Gb/s interface spinning at 7200 RPM with a 256 MB cache. The bare-drive packaging suits integrators who install drives into hot-swap chassis or storage appliances.

IT teams needing high-throughput shared storage

This drive suits administrators who require the dual-port reliability and consistent performance of SAS for multi-user databases, virtualisation hosts or backup targets. It is not for buyers who need a single-port consumer interface or who lack a SAS backplane and compatible controller in their enclosure.

SAS 12Gb/s interface

The defining specification is the SAS 12Gb/s connection, which determines whether the drive can communicate with your controller and backplane. Verify that your storage system supports this interface and the 3.5 inch form factor before purchasing.

Highlights

  • Enterprise capacity with 4 TB storage
  • High-speed SAS 12 Gb/s interface
  • Fast 7200 RPM spindle for quick access
  • Large 256 MB cache boosts throughput
  • 5-inch form factor fits standard bays

Specifications

BrandSeagate
ModelST4000NM004A
PackagingBare Drive
InterfaceSAS 12Gb/s
Capacity4TB
RPM7200 RPM
UsageFor Enterprise Storage
Form Factor3.5"
Shipping weight0.91 kg
Package size152 × 102 × 25 mm

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Questions about this item

What drive bay size and interface does the 3.5-inch SAS 12Gb/s drive require?

The drive fits a standard 3.5-inch bay and connects via a SAS 12Gb/s backplane or controller.

How is the bare drive installed in a rackmount NAS and what step is often missed?

Slide the drive into the hot-swap tray, secure it with the tray screws, and insert the tray until the SAS connector seats fully; the step often missed is fastening the tray screws before insertion.

When will the 4 TB enterprise drive with 256 MB cache need replacement under heavy workloads?

Enterprise drives are rated for continuous operation; plan replacement after five years or when SMART attributes indicate wear.

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