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Toshiba 18TB N300 7200 rpm SATA III 3.5" Internal NAS HDD

BH #TOHDWG51JXZA • MFR #HDWG51JXZSTA
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Toshiba 18TB N300 7200 rpm SATA III 3.5" Internal NAS HDD
Key Features
  • 18TB Capacity
  • 3.5" Form Factor
  • SATA III 6 Gb/s Interface
  • 512MB Cache
Amass a large pool of storage with the Toshiba 18TB N300 7200 rpm SATA III 3.5" Internal NAS HDD. Designed specifically for NAS and RAID environments, this drive gives users extended support with ample storage for movies, music, important files, media assets, and more.
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Toshiba N300 Internal HDD Overview

Amass a large pool of storage with the Toshiba 18TB N300 7200 rpm SATA III 3.5" Internal NAS HDD. Designed specifically for NAS and RAID environments, this drive gives users extended support with ample storage for movies, music, important files, media assets, and more.

The N300 provides you with up to 18TB max capacity so you can save all your files and important information easily. The 3.5" form factor enables you to install this drive into various NAS systems with up to 8 drive bays. The drive has a 7,200 rpm rotational speed and 512MB cache, giving you data transfer rates up to 281 MB/s, ensuring your read and write capabilities are well optimized. A 1.2 million hour mean time between failures ensures enhanced reliability suitable for 24/7 operation.

Applications
  • Home & small office NAS
  • Desktop RAID and servers
  • Multimedia server storage
  • Private cloud storage
  • Small business and server storage
High Reliability
Designed for 24/7 NAS systems.
Rich Scalability
Supports up to 8 drive bays.
High Performance
7200 rpm drive with a 512MB cache.
Protection
Mitigate Rotational Vibration with built-in RV sensors.
Built to Last
Built with a workload rate of 180TB per year and an MTTF of 1.2 hours.
Massive Capacity
Store and access your critical data and important documents.
UPC: 723844001216

Toshiba N300 Internal HDD Specs

Key Specs
Total Capacity
18 TB
Drive Type
SATA III / 3.5" HDD (7200 rpm)
Read Speed
Sustained: 281 MB/s
Write Speed
Maximum: 281 MB/s
Total Capacity
18 TB
Drive Type
SATA III / 3.5" HDD (7200 rpm)
Performance
Read Speed
Sustained: 281 MB/s
Write Speed
Maximum: 281 MB/s
Encryption Support
No
Mean Time Between Failures (MTBF)
1.2 Million Hours
Electrical
Power Draw
7.48 W (Active)
4.14 W (Idle)
General
Operating Conditions
41 to 140°F / 5 to 60°C
Operating Shock
70 G / 2.0 ms
Storage Conditions
-40 to 158°F / -40 to 70°C
Dimensions
5.8 x 4.01 x 1" / 147 x 101.85 x 26.1 mm
Weight
1.6 lb / 720 g
Packaging Info
Package Weight
1.73 lb
Box Dimensions (LxWxH)
8.1 x 5.8 x 2.3"

Toshiba N300 Internal HDD Reviews

So Far, So Good

By Stephen
Rated 5 out of 5
Date: 2026-05-06

The drives are working well, (I bought a 4-pack), and I like to think these drives will last a long, long time. They're no noisier than the Synology 4TB drives these Toshiba drives replaced, and the vast amount of space now available is appreciated greatly.

Works great!

By Joseph
Rated 5 out of 5
Date: 2026-03-26

The "Toshiba 14TB N300 7200 rpm SATA III 3.5" Internal NAS HDD" was reliable and worked exactly as intended!

See any errors on this page?

Is it safe to use this drive in a computer or DAS ...

Is it safe to use this drive in a computer or DAS device which is not running RAID?
Asked by: Robert
The Toshiba 12TB N300 7200 rpm SATA III 3.5" Internal NAS HDD (B&H # TON30012TB) is compatible and safe to use with a computer or a DAS device not running in a RAID setup.
Answered by: Michael S
Date published: 2025-01-28

can this product be used with QNAP TR-004 4-Bay ...

can this product be used with QNAP TR-004 4-Bay USB 3.2 Gen 1 RAID expansion enclosure?
Asked by: Jackson
Yes, you can use the Toshiba 6TB N300 7200 rpm SATA III 3.5" Internal NAS HDD with the QNAP TR-004 4-Bay USB 3.2 Gen 1 RAID expansion enclosure.
Answered by: Michael S
Date published: 2025-01-16

Does toshiba support the 3 year warranty when ...

Does toshiba support the 3 year warranty when purchased from this sight?
Asked by: Edward
Yes, the Toshiba 6TB N300 7200 rpm SATA III 3.5" Internal NAS HDD comes with a 3-year manufacturer warranty.
Answered by: JP A
Date published: 2025-12-08

Can this be used as an independent drive within a ...

Can this be used as an independent drive within a four bay enclosure?
Asked by: Mark
Yes, the Toshiba 6TB N300 7200 rpm SATA III 3.5" Internal NAS HDD can operate as a single drive.
Answered by: Alex D
Date published: 2025-01-12

Does the drive use HE helium?

Does the drive use HE helium?
Asked by: Hugo
Yes, the Toshiba 8TB N300 7200 rpm SATA III 3.5" Internal NAS HDD is helium sealed.
Answered by: Thomas M
Date published: 2026-03-30

Is the 12TB N300 or a N300 (non pro for that ...

Is the 12TB N300 or a N300 (non pro for that matter) a CMR drive?
Asked by: Fadillah
The Toshiba 12TB N300 7200 rpm SATA III 3.5" Internal NAS HDD is a CMR Drive.
Answered by: Nathan F
Date published: 2025-12-07
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