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Silver 3.5-inch hard drive with label showing 12TB capacity

Toshiba

Toshiba N300 Pro 12TB 3.5" 7200 RPM 512MB Cache SATA 6.0Gb/s HDWG51CUZSVB

SKU CH-DR9T-V8Q6N MPN HDWG51CUZSVB

12 TB 3.5-inch enterprise NAS drive with 7200 RPM, 512 MB cache and CMR recording

  • Total capacity12 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Recording methodCMR
  • Rotational speed7,200 RPM
  • Cache memory512 MB

Capacity 12TB

  • High capacity for large NAS storage with 12TB
  • Fast data access from 7200 RPM rotational speed
  • CMR technology ensures consistent write performance
  • Large 512MB cache improves burst throughput
  • Designed for enterprise NAS workloads

12 TB enterprise NAS drive

This 12 TB Toshiba N300 Pro drive uses a SATA 6.0Gb/s interface, 7200 RPM spindle speed and 512 MB cache. It is built with CMR recording technology in a 3.5 inch form factor for desktop internal bays. The series targets enterprise NAS workloads.

Suits multi-bay NAS arrays

The drive suits administrators who need high-capacity, CMR storage for RAID arrays in always-on NAS enclosures. It is not for buyers who need a 2.5 inch form factor, lower power draw for laptop bays, or a different interface than SATA.

SATA 6.0Gb/s interface decides fit

The single specification that decides compatibility is the SATA 6.0Gb/s interface; the host system must provide a matching SATA port and 3.5 inch bay. Without that connection the drive cannot be installed or used.

How it compares

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

Price $402.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 12 TB
Higher than about 90% of the 2,372 comparable items (median 2 TB).
Price per TB $33.58 per TB
Cheaper than about 78% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameTOSHIBA
Product lineN300 Pro
Model nameHDWG51CUZSVB
Part numberHDWG51CUZSVB
Total capacity12 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)
Shipping weight0.68 kg
Package size150 × 102 × 25 mm

Other versions of this model

2 more in the same range

Questions about this item

How do I install the 3.5" SATA drive in my NAS, and which step is often missed?

Mount the drive in a 3.5-inch bay, connect the SATA data and power cables, then enable CMR mode in the NAS firmware; the step often missed is confirming the SATA 6.0Gb/s link speed in the controller settings.

What maintenance will the 7200 RPM drive need over its 5-year service life?

Run SMART health checks monthly, keep the NAS ventilation clear so the 7200 RPM spindle stays cool, and replace the drive if reallocated sectors exceed the manufacturer threshold.

What limit appears first during sustained 7200 RPM writes on the 512MB cache?

The 512MB cache absorbs bursts, but sustained writes settle at the SATA 6.0Gb/s interface ceiling, so throughput plateaus at the bus limit before the platters become the bottleneck.

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