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Silver 3.5 inch internal hard drive with label showing Toshiba N300 4TB

Toshiba

Toshiba N300 HDWG440XZSTA 4TB 7200 RPM 256MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-0B46-QK7N2 MPN HDWG440XZSTA

A 4 TB 3.5" 7200 RPM SATA internal hard drive with 256 MB cache built for 24/7 NAS operation

  • Total capacity4 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeRetail
  • Rotational speed7,200 RPM
  • Cache memory256 MB

Capacity 4TB

  • Designed for 24/7 NAS operation with 1,200,000 hour MTTF
  • 7200 RPM and 256MB cache deliver responsive multi-user performance
  • Rotational vibration sensors maintain consistent throughput in multi-bay enclosures
  • Supports up to 8 drive bays for scalable RAID configurations
  • 180TB per year workload rating handles heavy data demands

NAS-ready 4 TB hard drive

The Toshiba N300 HDWG440XZSTA is a 3.5-inch internal hard drive built for 24/7 network attached storage. It suits personal, home-office and small-business NAS enclosures that need continuous operation. The drive delivers 4 TB capacity over a SATA 6.0Gb/s interface with a 7200 RPM spindle and 256 MB cache.

Thermals noise and power in normal use

Rotational vibration sensors automatically detect and compensate for transient vibrations in multi-bay chassis, helping the drive run steadily under typical NAS workloads. The 180 TB per year workload rating reflects the endurance expected during everyday file serving and backup tasks. A 1,200,000 hour MTTF figure supports the design goal of round-the-clock power-on operation.

Behaviour under sustained load

Support for up to 8 drive bays in a multi-RAID configuration lets the drive maintain consistent throughput as the array scales. RV sensors continue to counteract vibration-induced latency during prolonged, heavy I/O sessions. The combination of 7200 RPM speed and large cache sustains performance for large sequential transfers and concurrent user access.

How it compares

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

Price $69.99
Cheaper than about 64% of the 4,938 comparable items (median $107.99).
Total capacity 4 TB
Higher than about 70% of the 2,372 comparable items (median 2 TB).
Price per TB $17.50 per TB
Cheaper than about 94% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameTOSHIBA
Product lineN300
Model nameHDWG440XZSTA
Total capacity4 TB
Recommended useFor NAS systems
Performance
Rotational speed7,200 RPM
Storage
Cache memory256 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 weight0.73 kg
Package size192 × 140 × 62 mm

Other versions of this model

1 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 using four screws, connect the SATA 6.0Gb/s data cable and the SATA power cable, then ensure the NAS firmware recognises the new volume before creating any RAID array.

What maintenance or replacement will the drive need during its service life?

The drive is rated for 1,200,000 hour MTTF and a 180TB per year workload; monitor SMART attributes for reallocated sectors and plan replacement if the error rate rises or the workload limit is consistently reached.

What limit appears first during sustained 24/7 operation in a multi-bay NAS?

Rotational vibration sensors compensate for transient vibration up to eight drive bays, so the practical limit is the 180TB annual workload rating rather than vibration-induced performance loss.

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