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Silver 3.5 inch internal hard drive with SATA connectors and label showing 14TB capacity

Western Digital

Western Digital WD141KFGX 14TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-3TCG-J4CWW MPN WD141KFGX

14TB 7200 RPM SATA 6.0Gb/s 3.5" internal hard drive with 512MB cache for enterprise NAS up to 24 bays

  • Total capacity14 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Flash memory typeHard Drive
  • Rotational speed7,200 RPM
  • Cache memory512 MB
  • 14TB capacity for large NAS storage
  • 7200 RPM speed for responsive multi-user access
  • 512MB cache boosts sustained transfer rates
  • 300TB yearly workload rating for heavy NAS duty
  • 3D Active Balance Plus and NASware 3.0 protect data integrity

Capacity and interface

The Western Digital WD141KFGX is a 14TB 3.5-inch internal hard drive that connects through a SATA 6.0Gb/s interface. It spins at 7200 RPM and includes a 512MB cache to handle sustained workloads in multi-bay enclosures.

Suited for multi-bay NAS.

This drive is built for enterprise NAS systems that support up to 24 bays and workloads of 300TB per year. Buyers who need a drive for a laptop, a single-bay desktop or workloads demanding SSD-class random performance should look at a different storage class.

300TB annual workload rating

The manufacturer specifies a 300TB per year workload rate, which is the key figure for deciding whether the drive matches the write intensity of the target NAS environment.

How it compares

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

Price $457.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 14 TB
Higher than about 91% of the 2,372 comparable items (median 2 TB).
Price per TB $32.71 per TB
Cheaper than about 79% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineRed Pro
Model nameWD141KFGX
Total capacity14 TB
Recommended useEnterprise NAS Hard Drives
Performance
Rotational speed7,200 RPM
Storage
Flash memory typeHard Drive
Cache memory512 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.6 mm
Maximum length147 mm
Shipping weight0.79 kg
Package size226 × 157 × 79 mm

Questions about this item

Which WD Red Pro capacity fits a 12-bay NAS?

The series spans 2 to 22TB; this 14TB model works in any 1-24 bay system.

What does the 7200 RPM rating deliver in a RAID array?

Consistent throughput for multi-user NAS workloads rated up to 300TB per year.

How does the SATA 6.0Gb/s interface limit this drive?

The SATA link sets the maximum interface speed; real-world throughput follows mechanical limits.

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