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Silver 3.5-inch internal hard drive with circuit board visible on underside

Toshiba

Toshiba N300 Pro HDWG51EXZSTB 14TB 7200 RPM 512MB SATA 3.5" internal hard drive

SKU CH-40Q8-585BS MPN HDWG51EXZSTB

14 TB CMR enterprise NAS drive with 7200 RPM, 512 MB cache, SATA 6.0 Gb/s and 300 TB/yr workload rating for up to 24-bay RAID systems

  • Total capacity14 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Recording methodCMR
  • Rotational speed7,200 RPM
  • Cache memory512 MB

Capacity 14TB

  • 14TB capacity stores large datasets
  • 7200 RPM and 512MB cache speed up data access
  • CMR technology provides consistent performance
  • Built for 24/7 operation in NAS with up to 24 bays
  • 300 TB/yr workload rating supports high-intensity use

14 TB Enterprise NAS Drive

The Toshiba N300 Pro HDWG51EXZSTB is a 14 TB internal hard drive built for business network-attached storage. It targets administrators who need high-capacity, reliable storage for multi-bay NAS enclosures running continuous workloads.

SATA 6.0 Gb/s 3.5" Integration

The drive connects via a standard SATA 6.0 Gb/s interface and fits a 3.5 inch bay with a 26.10 mm height profile. Its 512 MB cache buffers heavy I/O, while built-in RV sensors counteract rotational vibration in arrays of up to 24 drives, freeing the system from vibration-related performance drops.

300 TB/Year Workload Headroom

Rated for a 300 TB per year workload, the CMR drive comfortably handles 24/7 operation in RAID-optimised NAS systems serving medium or large businesses. It runs out of headroom when workloads exceed the annualised limit or when a deployment requires more than 24 drive bays.

How it compares

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

Price $282.99
Pricier than about 81% 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 $20.21 per TB
Cheaper than about 92% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameTOSHIBA
Product lineN300 Pro
Model nameHDWG51EXZSTB
Total capacity14 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 width101.85 mm
Maximum length147 mm
Shipping weight0.77 kg
Package size192 × 140 × 62 mm

Other versions of this model

1 more in the same range

Questions about this item

What is the annual workload limit for this 14TB N300 Pro drive?

The drive is rated for up to 300 TB per year, which is the sustained-use limit that appears first under heavy NAS workloads.

How does the built-in RV sensor affect heat and noise during 24/7 operation?

The RV sensors counteract rotational vibration in multi-bay arrays, helping the drive run cooler and quieter during continuous operation.

Which SATA host controller or backplane is required for the 6.0Gb/s interface?

Any standard SATA 6.0Gb/s controller or backplane will work; the drive uses the common SATA data and power connectors.

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