Toshiba Consumer Storage

Toshiba N300 Series Internal NAS Hard Drive

Internal HDD N300
  • Built for Network Attached Storage (NAS)
  • High capacity with up to 8TB1 of storage
  • Excellent reliability and data integrity
  • 24/7 operation provides around-the-clock data availability
  • Robust scalability supports up to 8 HDD in a muti-RAID system
  • Error recovery control helps prevent critical down time
Fierce Reliability for Today’s NAS Storage

Fierce Reliability for Today’s NAS Storage

Whether you’re hosting a cloud, sharing files between workgroups or powering a high-traffic 24/7 network, this NAS hard drive delivers advanced reliability, serious real-time performance and built-in sensors and controls for higher data protection.  
High Storage Capacity – Up to 8TB

High Storage Capacity – Up to 8TB1

With Toshiba’s N300 3.5” internal NAS hard drive, you’ve got an excellent mix of high performance and high capacity. Choose from 4TB1, 6TB1 or 8TB1 – plenty of space to keep your ever-growing collection of shared files, photos and important documents safe, sound and easily accessible every day by every user. 
Fits Today. Fits Tomorrow.

Fits Today. Fits Tomorrow.

The N300 fits well in a multi-RAID system supporting up to 8 drives2, enabling robust scalability and room to grow as business needs evolve over time. Get what you need today, and rest easy knowing you’ve got room to grow.
A Cool, Steady Performer

A Cool, Steady Performer

Thanks to advanced controls and sensing technologies, the N300 mitigates the effects of vibration, shock and heat – delivering excellent read/write performance in real time, while preventing downtime. Multiple built-in sensors detect and compensate for shock and rotational vibration, while error recovery control minimizes recovery time from data errors. So you can work, create and edit as much as you like without worrying about the safety of your data.    
Real Performance, In Real Time

Real Performance, In Real Time

Toshiba’s Dynamic Cache Technology – a built-in algorithm with on-board buffer management – optimizes cache allocation during read/write tasks to provide high-level performance demanded by real-time domains.
Quality You Can Trust.

Quality You Can Trust.

Like all Toshiba products, the N300 3.5” internal NAS hard drive is designed from the ground up with your needs in mind, then tested again and again for reliability.  We strive for excellence, so you can count on it to perform as advertised – every time. That’s why it comes with a solid three-year standard limited warranty3 that will boost your peace of mind.
Toshiba N300 Internal NAS Hard Drive Testimonial: Related Grey

Toshiba N300 Internal NAS Hard Drive Testimonial: Related Grey

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N300 Features

  • Built for NAS, this drive delivers excellent reliability and 24/7 performance for centralized data sharing, storage and backup.
  • High capacity with up to 8TB1 of storage offers secure, scalable NAS storage for shared data and accommodate a massive collection of large digital files.
  • Delivers high reliability4 and data integrity for 24/7 high-traffic workloads5 of up to 180TB per year.
  • 24/7 operation provides around-the-clock data availability.
  • Robust scalability supports up to 8 HDD2 in a multi-RAID system, enabling growth as business needs evolve over time.
  • Internal shock detection helps protect your drive and data.
  • Built-in Rotational Vibration (RV) sensor compensates for any vibration to ensure high reliability.
  • Heat prevention controls automatically adjust seek speed to minimize potential data damage.
  • Error recovery control helps prevent critical downtime for business-use multi-RAID environments.
  • Toshiba’s Dynamic Cache Technology algorithm and on-board buffer management optimize real-time read/write performance.
  • Proprietary tied spindle motor stabilizes the motor drive shaft at both ends to curb system-induced vibration and strengthens system performance during read/write operations.
  • High 128MB data buffer boosts performance and shortens read speed during high data access loads.
  • Fast data transfer speed up to 240MB/s5 provides quick access to essential content.
  • Backed by a 3-year standard limited warranty3, this drive is built to Toshiba’s world-class quality standards and offers long-term confidence for mission-critical server systems.


Capacity1: 4TB, 6TB, 8TB

Compatibility2: PC and Apple computers with a Serial ATA interface

NAS System Compatibility: View here

Interface: Serial ATA 3.0 (SATA)

Interface Speed8: Up to 6 Gbit/s

Form Factor8: 3.5 inch

Rotational Speed: 7,200 RPM

Data Transfer Speed (Sustained)7:
     4TB: Up to 200 MB/s Typ.
     6TB: Up to 210 MB/s Typ.
     8TB: Up to 240 MB/s Typ.

Average Latency Time: 4.17 ms

Buffer Size: 128 MB

Bottom Mounting:

For more details about mounting, click here.

     4TB: Type 2
     6TB: Type 1
     8TB: Type 1

     Inch (WxHxL): 4 x 1.03 x 5.79
     Milimeter (WxHxL): 101.6 x 26.1 x 147

Weight (max):
     4TB: 25.4 oz (720 g)
     6TB, 8TB: 27.2 oz (770 g)

Leading Edge Technology

  • Intelligent Serial ATA Interface
  • Perpendicular Magnetic Recording (PMR) Technology
  • Tunnel Magneto-Resistive (TMR) Recording Head Technology
  • Native Command Queuing (NCQ) Support
  • Read/Write cache for increased performance
  • Internal shock detection and ramp loading technology to help protect your drive
  • Rotational Vibration (RV) Sensors
  • Dual Stage Actuator (DSA) and Gimbal Micro Actuator (GMA)*
* GMA available on 8TB model only
More Internal Hard Drives

1 One Gigabyte (1GB) means 109 = 1,000,000,000 bytes and One Terabyte (1TB) means 1012 = 1,000,000,000,000 bytes using powers of 10. A computer operating system, however, reports storage capacity using powers of 2 for the definition of 1GB = 230 = 1,073,741,824 bytes and 1TB = 240 = 1,099,511,627,776 bytes, and therefore shows less storage capacity. Available storage capacity (including examples of various media files) will vary based on file size, formatting, settings, software and operating system and other factors.

2 Compatibility may vary depending on user’s hardware configuration and operating system. As for "Drive Bays Supported", please contact your Solutions Provider because the compatibility with the host device will vary based on the system.

3 Three (3) year standard limited warranty applies. The warranty brochure can be viewed online at

4 High reliability in comparison to TOSHIBA products (X300/P300/E300/H200/L200).

5 Workload is defined as the amount of data written, read or verified by commands from host system.

6 The maximum sustained data rate and interface speed may be restricted to the response speed of host system and by transmission characteristics.

7 Read and write speed may vary depending on the host device, read and write conditions, and file size.

8 "2.5-inch" and "3.5-inch" mean the form factor of HDDs or SSDs. They do not indicate drive's physical size.

Product specifications, features, and availability are subject to change without notice.

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