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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

  • Total capacity24 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Recording methodCMR
  • Rotational speed7,200 RPM
  • Cache memory512 MB

Capacity 24TB

Show 4 more
  • 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.

How it compares

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

Price $799.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 24 TB
Higher than about 96% of the 2,372 comparable items (median 2 TB).
Price per TB $33.33 per TB
Cheaper than about 78% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWestern Digital
Product lineRed Pro
Model nameWD241KFGX
Total capacity24 TB
Recommended useEnterprise NAS Hard Drives
Performance
Rotational speed7,200 RPM
Storage
Recording methodCMR
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 weight0.66 kg
Package size147 × 102 × 26 mm

Other versions of this model

5 more in the same range

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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