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Silver 3.5 inch hard drive with black label

Western Digital

Western Digital WD4001FFSX 4TB 3.5" 7200 RPM SATA internal hard drive

SKU CH-QE4J-JXQFG

A 4 TB desktop hard drive spinning at 7200 RPM with 64 MB cache, built for 24×7 NAS arrays of up to 16 bays using SATA and NASware 3.2 technology

  • Designed for 8 to 16-bay NAS systems
  • 7200 RPM spindle speed for responsive data access
  • 64 MB cache buffer improves read/write throughput
  • NASware 3.2 firmware optimises 24×7 operation
  • 3D Active Balance Plus enhances long-term reliability

Built for 8 to 16-bay NAS

This 4TB 3.5-inch drive spins at 7200 RPM over a SATA interface and carries 64MB of cache. It targets operators of medium to large network-attached storage arrays that run around the clock and need consistent throughput across many bays.

Thermals noise and power in 24x7 operation

The mechanism is tuned for continuous duty with 3D Active Balance Plus to limit vibration and NASware 3.2 firmware to manage error recovery. Extended factory testing validates each unit for the sustained workloads typical of multi-bay enclosures.

Integration notes for multi-bay builds

The package contains the drive only; mounting screws, data cables and documentation are not supplied and must be sourced separately. Compatibility has been verified across a broad range of NAS platforms, freeing the builder from trial-and-error qualification.

Ciri-ciri utama

  • Designed for 8 to 16-bay NAS systems
  • 7200 RPM spindle speed for responsive data access
  • 64 MB cache buffer improves read/write throughput
  • NASware 3.2 firmware optimises 24×7 operation
  • 3D Active Balance Plus enhances long-term reliability

Spesifikasi

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Soalan tentang produk ini

How do I install this 3.5 inch SATA drive in a NAS bay and what step is often missed?

Mount the drive in a 3.5 inch bay using screws purchased separately, connect the SATA data and power cables, then configure the array in the NAS operating system before use.

What maintenance or replacement will this WD Red Pro drive need over its service life?

No scheduled maintenance is required; the drive is built for 24x7 operation and carries a 5-year manufacturer limited warranty, after which replacement depends on SMART health indicators.

What limit appears first on this 7200 RPM drive during sustained 24x7 NAS workloads?

The 64MB cache and SATA 6 Gb/s interface set the sustained throughput ceiling, so heavy multi-user access will hit that bandwidth limit before the 7200 RPM mechanics saturate.

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