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Silver 3.5-inch internal hard drive with black label, SATA connectors visible

Western Digital

Western Digital WD241KFGX 24TB 7200 RPM 512MB SATA 3.5" internal hard drive

SKU CH-GCGC-V4115 MPN WD241KFGX

24 TB enterprise NAS drive with 7200 RPM, 512 MB cache and CMR recording for up to 24-bay systems

  • InterfaceSATA 6.0Gb/s
  • Capacity24TB
  • Recording TechnologyCMR
  • RPM7200 RPM
  • Cache512MB
  • UsageEnterprise NAS Hard Drives

Capacity 24TB

Show 4 more configurations
  • 24 TB capacity stores massive datasets
  • 7200 RPM spindle delivers fast sequential throughput
  • 512 MB cache buffers heavy multi-user workloads
  • CMR recording technology ensures consistent write performance
  • NASware 3.0 firmware optimises operation in multi-bay NAS

24TB CMR drive for multi-bay NAS

This Western Digital Red Pro drive provides 24TB of CMR storage on a SATA 6.0Gb/s interface. It spins at 7200 RPM with a 512MB cache and is built for enterprise NAS systems with up to 24 bays. The 3.5-inch form factor fits standard drive bays in rackmount or tower enclosures.

SATA throughput and 300TB yearly workload

The SATA 6.0Gb/s link caps sustained transfer rates at the interface maximum, so sequential performance cannot exceed that ceiling. The drive is rated for a 300TB per year workload rate, which sets the practical boundary for write-heavy, always-on RAID arrays. Vibration from adjacent drives in dense chassis is managed by on-board RV sensors.

26.1mm helium-sealed chassis with NASware 3.0

The helium-filled design at 26.10mm height reduces internal turbulence and acoustic noise in 24-bay configurations. NASware 3.0 firmware tunes error recovery and power management for RAID controllers, while 3D Active Balance Plus improves rotational stability. Standard 3.5-inch mounting holes allow drop-in installation without adapters.

Highlights

  • 24 TB capacity stores massive datasets
  • 7200 RPM spindle delivers fast sequential throughput
  • 512 MB cache buffers heavy multi-user workloads
  • CMR recording technology ensures consistent write performance
  • NASware 3.0 firmware optimises operation in multi-bay NAS

Specifications

BrandWestern Digital
SeriesRed Pro
ModelWD241KFGX
InterfaceSATA 6.0Gb/s
Capacity24TB
Recording TechnologyCMR
RPM7200 RPM
Cache512MB
UsageEnterprise NAS Hard Drives
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.60mm
Length (maximum)147.00mm
Shipping weight0.66 kg
Package size147 × 102 × 26 mm

Other versions of this model

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Questions about this item

Should I choose the 24TB model or a smaller capacity from the 2TB to 26TB range?

Pick the capacity that matches your total storage plan and the number of bays in your NAS; the series supports enclosures with up to 24 bays, so a 24TB drive fits a fully populated chassis while smaller drives leave room for later expansion.

What does the 300TB per year workload rating mean for daily operation?

It means the drive is built for continuous 24x7 writing and reading at enterprise levels, so heavy multi-user file sharing, backup jobs and RAID rebuilds stay within the rated endurance envelope.

Does the SATA 6.0Gb/s interface limit real-world speed compared to the drive's own capability?

The 7200 RPM CMR mechanism with 512MB cache can saturate the SATA 6.0Gb/s link during large sequential transfers, so the interface is the practical ceiling for sustained throughput.

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