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Internal Hard Drives


For NAS and other high-performance storage demands

Toshiba’s N300 3.5-inch internal hard disk offers unprecedented reliability for NAS and other high-performance storage systems. It is optimized to meet the reliability, endurance, performance, and scalability requirements of 24/7 high-capacity storage for personal, home office, and small business use. The N300 is available in capacities of up to 8 TB.

Use for:
• 1- to 8-bay NAS
• Desktop RAID and servers
• Multimedia server storage

  • Optimal for 1-to-8 bay NAS
  • 3.5" SATA Hard Drive
  • 7200 rpm
  • 128 MB buffer
  • High reliability and enhanced real-time performance
  • High-endurance design
  • Data protection technology
  • Perfect for: Personal, home office and small business use
8 TB 6 TB 4 TB
Designed for NAS
Through its contact with NAS manufacturers, Toshiba recognizes the need for high-reliability disks in support of modern data storage and retrieval demands including streaming, backup and archiving. This drive, which can support multi-RAID systems with up to 8 hard disk drives, allows large volumes of data to be reliably stored and accessed by multiple clients 24 hours a day, 365 days a year.

Integrated RV sensors

Regular hard disk drives without RV sensors can affect the performance of a multi-bay NAS System by generating 'knock-on' vibration. N300 drives ensure high reliability by minimising vibration effects through their advanced control and sensing technology. Multiple sensors detect the slightest shock and built-in RV sensors also compensate for rotational vibration - eliminating the possibility of 'knock-on' vibration in multi-bay NAS configurations system.


High-Reliability NAS Hard Drive

Reliable always-on operation

NAS systems in small businesses or creative environments often need to be accessed by several users, at different locations, simultaneously. Therefore today's NAS drives must deliver high data transfer rates and simultaneous upload and download 24 hours a day, 7 days a week. Offering high reliability and scalability, N300 drives achieve a max. 180 TB/year workload factor, up to 3 times more than convenient desktop hard drives.

High durability and heat prevention

Use of high-endurance components is one of the reasons why the N300 series offers better durability than other conventional hard disk drives. At the same time, automatic adjustment of seek speed to reduce heat during high-temperature operation further improves endurance in demanding situations.

High speed for multi-drive environment

High performance and fast read speed are made possible under high data access loads from multiple users thanks to a 128 MB data buffer. This makes the drive suitable for small businesses and creative professionals looking for solutions to handle high data volumes using multi-RAID NAS environments.

Innovating worldwide

Toshiba is renowned the world over for 50 years of leading innovation – and the power behind its range of hard drives is no exception. Designed for high capacity and excellent performance, you can be sure that Toshiba’s wealth of experience in hard drives is at work in your storage system. A three year extended warranty is also included with the N300 for the ultimate peace of mind.

Product Specifications

  • Acoustics (idle mode)
    33 dB typ. (6 & 8 TB), 30 dB typ. (4 TB)
  • Acoustics (seek mode)
    35 dB typ. (6 & 8 TB), 34 dB typ. (4 TB)
  • Advanced Format (AF)
    Yes (6TB & 8TB)
  • Average latency
    4.17 ms
  • Box Content

    3.5-inch internal hard drive - N300 High-Reliability NAS Hard Drive

  • Buffer size
    128 MB
  • Consumption - Active Idle
    6.2 W typ. (8 TB), 6.7 W typ. (6 TB), 5.2 W typ. (4 TB)
  • Consumption (operating)
    9.2 W typ. (8 TB), 10.1 W typ. (6 TB), 9.6 W typ. (4 TB)
  • Data transfer speed
    240MB/s (8TB), 210MB/s (6TB), 200MB/s (4TB)
  • Dimensions

    147 (L) x 101.85 (W) x 26.1 (H) mm

  • Drive bays supported
    1 to 8
  • Form factor


  • Halogen Free
  • Interface
    SATA 6.0 Gbit/s
  • Limited warranty

    3 years

  • MTTF
    1,000,000 hours
  • Native Command Queing (NCQ)
  • RoHS compatible
  • Rotational speed
    7,200 rpm
  • Supply voltage
    5VDC (±5%) / 12VDC (±10%)
  • Temperature (operating / non-operating)
    0 to 60° C / -40 to 70 °C
  • Unrecoverable error rate
    1 per 10E14 bits read
  • Vibration (non-operating)
    5 G (5 to 500Hz) or less
  • Vibration (operating)

    0.75 G (5 to 300 Hz)
    0.25 G (300 to 500 Hz) or less

  • Weight (approx.)

    770 g max. (6 & 8 TB), 720 g max. (4 TB)

  • Workloads
    180 TB/year

Product Range

Part number Capacity Color
HDWN180EZSTA (Retail) 8 TB -
HDWN180UZSVA (Bulk) 8 TB -
HDWN160EZSTA (Retail) 6 TB -
HDWN160UZSVA (Bulk) 6 TB -
HDWQ140EZSTA (Retail) 4 TB -
HDWQ140UZSVA (Bulk) 4 TB -

Where to buy

All features depending on model and local availability. The complete disclaimer and legal information can be found here: disclaimer


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