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Silver 3.5 inch bare hard drive with green label

Western Digital

Western Digital WD Red Pro WD4005FFBX 4TB 7200 RPM 256MB SATA 3.5" internal hard drive

SKU CH-BCHN-NBATX MPN WD4005FFBX

4TB 7200 RPM CMR drive with 256MB cache built for 24-bay NAS systems and 300TB yearly workloads

  • InterfaceSATA 6.0Gb/s
  • Capacity4TB
  • Recording TechnologyCMR
  • RPM7200 RPM
  • Cache256MB
  • UsageEnterprise NAS Hard Drives

Capacity 4TB

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  • Engineered for 24/7 multi-user NAS environments with CMR recording technology
  • 7200 RPM spindle speed and 256MB cache deliver responsive performance for heavy workloads
  • Rated for up to 300TB per year workload rate in enterprise NAS systems
  • NASware 3.0 firmware with 3D Active Balance Plus enhances reliability in multi-bay RAID arrays
  • 5-inch SATA 6.0Gb/s form factor fits standard enterprise NAS bays up to 24 drives

Enterprise NAS Storage

The Western Digital WD Red Pro WD4005FFBX is a 4TB 3.5-inch internal hard drive built for 24/7 multi-user commercial and enterprise NAS environments. It uses CMR recording technology and a SATA 6.0Gb/s interface to deliver dependable performance in RAID-optimised systems with up to 24 bays.

Upgrade From Consumer Drives

This drive replaces standard desktop drives that lack vibration protection and workload ratings for always-on arrays. The jump is worth it when your NAS handles heavy shared workloads, requires the 300TB per year workload rate, or needs the error recovery controls of NASware 3.0 technology.

Standard 3.5-Inch Installation

Installation follows the usual 3.5-inch SATA drive procedure using standard drive bays and cables. The 26.10mm height fits typical enterprise chassis, but verify bay clearance if your enclosure uses compact sleds. The bare drive ships without screws or cables, so reuse existing hardware or source them separately.

Helstu kostir

  • Engineered for 24/7 multi-user NAS environments with CMR recording technology
  • 7200 RPM spindle speed and 256MB cache deliver responsive performance for heavy workloads
  • Rated for up to 300TB per year workload rate in enterprise NAS systems
  • NASware 3.0 firmware with 3D Active Balance Plus enhances reliability in multi-bay RAID arrays
  • 5-inch SATA 6.0Gb/s form factor fits standard enterprise NAS bays up to 24 drives

Tæknilýsing

BrandWD
SeriesRed Pro
ModelWD4005FFBX
InterfaceSATA 6.0Gb/s
Capacity4TB
Recording TechnologyCMR
RPM7200 RPM
Cache256MB
UsageEnterprise NAS Hard Drives
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.60mm
Length (maximum)147.00mm
Sendingarþyngd0.91 kg
Stærð sendingar127 × 127 × 51 mm

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What are the exact dimensions of the WD4005FFBX so I can confirm it fits my NAS tray?

The drive measures 147.00mm long, 101.60mm wide and 26.10mm high, matching the standard 3.5-inch form factor used in most multi-bay NAS chassis.

Which cables and jumpers are required to install this SATA 6.0Gb/s drive, and what is the common oversight?

Connect a standard SATA data cable and a 15-pin SATA power connector; there are no jumpers to set. The step often missed is fully seating both plugs until they click, as a loose data link drops the link speed.

How do I monitor the health of this CMR drive and when should I plan a replacement?

Use the NAS SMART dashboard to track reallocated sectors, workload rate and temperature; the drive is rated for 300TB per year, so plan a swap when SMART attributes approach threshold or after five years of continuous operation.

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