Hard Drive | 12 TB Mechanical Hard Disk |
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Toshiba N300 PRO 12TB Large-Sized Business NAS (up to 24 bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/year Workload Rate CMR SATA 6 GB/s 7200 RPM 512 MB Cache - HDWG51CXZSTB
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Purchase options and add-ons
Product details
Digital Storage Capacity | 12 TB |
Hard Disk Interface | Serial ATA |
Connectivity Technology | SATA |
Brand | TOSHIBA |
Special Feature | Portable |
Hard Disk Form Factor | 3.5 Inches |
Hard Disk Description | Mechanical Hard Disk |
Compatible Devices | Desktop |
Installation Type | Internal Hard Drive |
Color | Silver |
About this item
- Built for medium or large business NAS with up to 24 bays
- Designed for 24/7 operation
- High reliability with workload rate of up to 300 TB/year and MTTF up to 1.2 million hours.
- High performance 7200 RPM drive with large cache size
- Optimized for RAID environments with integrated RV sensors to mitigate rotational vibrations
Brand | TOSHIBA |
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Model Number | HDWG51CXZSTB |
Hard Disk Description | Mechanical Hard Disk |
Built-In Media | Internal Hard Drive |
Model Name | N300 PRO 12TB |
Manufacturer | Toshiba |
UPC | 723844001049 |
Customer Reviews |
4.3 out of 5 stars |
Best Sellers Rank | #464 in Internal Hard Drives |
ASIN | B09TQ6RSW3 |
Digital Storage Capacity | 12 TB |
---|---|
Hard Disk Interface | Serial ATA |
Connectivity Technology | SATA |
Additional Features | Portable |
Hard Disk Form Factor | 3.5 Inches |
Compatible Devices | Desktop |
Hard Disk Rotational Speed | 7200 RPM |
Specific Uses For Product | Multimedia, Personal, Business |
Cache Memory Installed Size | 512 |
Data Transfer Rate | 6 Gigabits Per Second |
Form Factor | 3.5-inch |
Hardware Connectivity | SATA 6.0 Gb/s |
Installation Type | Internal Hard Drive |
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Hard-Drive Size | 12 TB |
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Item Weight | 1.52 Pounds |
Number of Items | 1 |
Package Type | Retail |
Color | Silver |
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Enclosure Material | Metal |
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Top Brand: TOSHIBA
From the manufacturer

Key Features
Operate Around The Clock
The Toshiba N300 Pro NAS Internal Hard Drive is designed to support your growing business needs. This drive delivers advanced reliability supporting workload rate of up to 300 TB per year(6) and MTTF of up to 1.2 million hours(7) to help keep your NAS system running 24/7(9).
Optimized for RAID Environment
The N300 Pro is designed to work in wide temperature ranges and has built-in RV sensors to mitigate rotational vibration in a multi-bay environment. Error Recovery Control technology limits recovery time to help optimize error correction in RAID environments. Plus, this drive is engineered with CMR technology to deliver consistent performance and broad compatibility.
Designed for Medium or Large Business
The N300 Pro is designed to scale with your business supporting up to 24-drive bays(5) and offering up to 22 TB(1) of storage capacity. It delivers fast data transfer speed up to 281 MB/s(8)– thanks to the large cache size and 7200 RPM speed.

Toshiba N300 Pro NAS Internal Hard Drive
Your business is growing, and Toshiba’s N300 Pro NAS Internal Hard Drive is ready to help you scale your NAS system up to 24 drive bays(5). Designed for enhanced workload and reliability, the N300 Pro hard drive delivers performance at your level to keep business moving.

Designed for 24/7 Operation(9)
Supports enhanced workload rate of up to 300 TB/yr(6). MTTF up to 1.2 million hours(7).

Rich Scalability
Supports up to 24 drive bays(5) and up to 22 TB(1) storage capacity for medium or large-sized business.

Powerful Performance
7200 RPM speed with up to 512MB cache size. Powered by Toshiba cache technology to help deliver real-time drive performance.

Enhanced Reliability
Built-in data protection for RAID environment with Rotational Vibration sensors and Error Recovery Control technology. CMR technology delivers consistent performance and broad compatibility.

Designed for 24/7 Operation(9)

Rich Scalability

Powerful Performance

Enhanced Reliability
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Customer Reviews |
4.3 out of 5 stars 188
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4.3 out of 5 stars 188
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4.4 out of 5 stars 151
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4.4 out of 5 stars 151
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3.0 out of 5 stars 27
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Application(2) | Medium or Large Business NAS | Small Office / Home Office Network system | High-end Desktop / Professional Workstation | Gaming, Graphics, Photo/Video Editing | Office Surveillance system, sDVR, sNVR |
Capacities(1) | 22TB, 20TB, 18TB, 16TB, 14TB, 12TB, 10TB, 8TB, 6TB, 4TB | 20TB, 18TB, 16TB, 14TB, 12TB, 10TB, 8TB, 6TB, 4TB | 22TB, 20TB, 18TB, 16TB, 14TB, 12TB, 10TB, 8TB, 6TB, 4TB | 20TB, 18TB, 16TB, 14TB, 12TB, 10TB, 8TB, 6TB, 4TB | 10TB, 8TB, 6TB, 4TB |
Interface | SATA 6 Gbit/s | SATA 6 Gbit/s | SATA 6 Gbit/s | SATA 6 Gbit/s | SATA 6 Gbit/s |
Recording Technology | CMR | CMR | CMR | CMR | CMR |
Rotational Speed | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
Cache Size | Up to 512 MB | Up to 512 MB | Up to 512 MB | Up to 512 MB | Up to 512 MB |
Drive Bays Supported(5) | Up to 24 | Up to 8 | no data | no data | Up to 24 |
Cameras Supported | no data | no data | no data | no data | Up to 64 |
24/7 Operation(9) | ✓ | ✓ | no data | no data | ✓ |
Workload Rate(6) | Up to 300 TB/yr | Up to 180 TB/yr | Up to 300 TB/yr | Up to 55 TB/yr | Up to 300 TB/yr |
Product information
Technical Details
Brand | TOSHIBA |
---|---|
Series | N300 PRO 12TB |
Item model number | HDWG51CXZSTB |
Hardware Platform | PC, Linux, Mac |
Item Weight | 1.52 pounds |
Product Dimensions | 5.79 x 4 x 1.03 inches |
Item Dimensions LxWxH | 5.79 x 4 x 1.03 inches |
Color | Silver |
Flash Memory Size | 1 TB |
Hard Drive Interface | Serial ATA |
Hard Drive Rotational Speed | 7200 RPM |
Manufacturer | Toshiba |
ASIN | B09TQ6RSW3 |
Country of Origin | Philippines |
Date First Available | March 1, 2022 |
Additional Information
Customer Reviews |
4.3 out of 5 stars |
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Best Sellers Rank | #464 in Internal Hard Drives |
Warranty & Support
Feedback

Toshiba N300 PRO 12TB Large-Sized Business NAS (up to 24 bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/year Workload Rate CMR SATA 6 GB/s 7200 RPM 512 MB Cache - HDWG51CXZSTB
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This Item ![]() Toshiba N300 PRO 12TB Large-Sized Business NAS (up to 24 bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/year Workload Rate CMR SATA 6 GB/s 7200 RPM 512 MB Cache - HDWG51CXZSTB | Recommendations | |||||
Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | |
Price | $274.99$274.99 | $301.44$301.44 | $353.22$353.22 | $149.99$149.99 | $148.99$148.99 | $279.99$279.99 |
Delivery | Get it as soon as Tuesday, Mar 18 | Get it as soon as Tuesday, Mar 18 | Get it as soon as Tuesday, Mar 18 | Get it as soon as Tuesday, Mar 18 | Get it as soon as Tuesday, Mar 18 | Get it as soon as Wednesday, Mar 19 |
Customer Ratings | ||||||
Sold By | Amazon.com | Amazon.com | Amazon.com | SMART SAVERS GLOBAL | goHardDrive | Platinum Micro, Inc. |
storage capacity | 12 TB | 14 TB | 18 TB | 12 TB | 12 TB | 16 TB |
hardware interface | sata 6 0 gb | sata 6 0 gb | sata 6 0 gb | sata 6 0 gb | sata 6 0 gb | sata 6 0 gb |
compatible devices | Desktop | Desktop | Desktop | Server | helium | Desktop |
form factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
write speed | — | — | 3 gigabits per second | 210 MB/s | — | 0 |
Looking for specific info?
Product Description
The Toshiba N300 Pro NAS Internal Hard Drive is ready to help you scale your business with up to 24 drive bay support. Offering a higher workload of up to 300 TB/yr and an expanded capacity of up to 18TB (compared to the N300), you can rely on the N300 Pro to help you take your business to the next level. Delivering the 7200 RPM speed you need to access your data quickly and 24/7 operation to help keep your data readily accessible, these drives are optimized to help keep your business growing. The N300 Pro is designed to work in wide temperature ranges and has built-in RV sensors to mitigate rotational vibration in a multi-RAID environment, so you can be confident that this drive will perform wherever and whenever you need it most. Plus, this drive is engineered with CMR technology to deliver consistent performance and broad compatibility. [Note]: (1) One Terabyte (1TB) means 10{12] = 1,000,000,000,000 bytes using powers of 10. Actual formatted storage capacity may vary. For details, please visit Toshiba's Consumer HDD website. (2) Compatibility may vary depending on user’s hardware configuration & operating system. (3) Product specifications, colors, configurations and components are subject to change without notice. (4) "2.5-inch" & "3.5-inch" mean the form factor of HDDs. They do not indicate drive's physical size. (5) For "Drive Bays Supported", please contact your Solutions Provider as compatibility with host device will vary based on the system. (6) Workload is a measure of the data throughput of the year, and it is defined as the amount of data written, read or verified by commands from the host system. (7) MTTF (Mean Time to Failure) is not a guarantee or estimate of product life; It is a statistical value related to mean failure rates for a large number of products which may not accurately reflect actual operation. Actual operating life of the product may be different from the MTTF. (8) Read and write speed may vary depending on the host device, read and write conditions, and file size. (9) Drive life may vary depending on usage and workload. (10) Standard limited warranty terms apply. The warranty brochure can be viewed at Toshiba's Consumer HDD website.
What's in the box
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers appreciate the computer drive's performance, speed, and value for money. They find it easy to set up and reliable. However, some customers dislike clicking noises. There are mixed opinions on noise level and hard drive performance.
AI-generated from the text of customer reviews
Customers are satisfied with the drive's performance. They find it reliable and easy to set up, with no issues or bad sectors so far. The drive is rated for higher usage than they will ever use, but customers say it functions perfectly so far.
"...Zero bad sectors so far. Transfer speed is good also. If , God forbid, it will start acting I'll change my review. But so far so good." Read more
"...I’ll update my review as I continue to use it, but for now, everything is running smoothly, and I’m very satisfied...." Read more
"Worked well out of the box and seems moderately fast (using a MacMini M4 and 8T SSD)...." Read more
"...They are rated for way higher usage that I will ever use. As I migrate data and fill up these drives I will buy another as needed...." Read more
Customers like the speed of the HDD. They say it's quiet, fast enough, and has good performance for storage and backups.
"...Zero bad sectors so far. Transfer speed is good also. If , God forbid, it will start acting I'll change my review. But so far so good." Read more
"...Reasonable quiet and good performance. Great for storage/backups" Read more
"Worked well out of the box and seems moderately fast (using a MacMini M4 and 8T SSD)...." Read more
"I have this in a single bay Synology. It's fast enough for me to stream video games from, while my girlfriend watches movies on emby in the living..." Read more
Customers appreciate the NAS drive's value for money. They find it reliable and good value for the price, but it can be sensitive to ESD.
"...Great harddisk at a reasonable price." Read more
"This is a good drive for the price, but comes with no documentation...." Read more
"This Toshiba N300 Pro NAS drive is reliable and good value for the price. It works well in a 24/7 NAS setup and has fast and reliable performance...." Read more
"Resonable price for the massive 20TB storage with trustable quality controll 30days return policy is also very satisfying" Read more
Customers find the computer drive easy to set up.
"...Setting it up in my NAS home server was a breeze—literally plug and play...." Read more
"Quality product. It was easy to set up in my NAS." Read more
"Great amount of storage space for the price. Easy to set up, and no issues." Read more
Customers appreciate the computer drive's reliability. They find it easy to set up and a good value for the price.
"...Great harddisk at a reasonable price." Read more
"Quality product. It was easy to set up in my NAS." Read more
"This Toshiba N300 Pro NAS drive is reliable and good value for the price. It works well in a 24/7 NAS setup and has fast and reliable performance...." Read more
Customers have different views on the computer drive's noise level. Some find it quiet and fast, while others report more noise when reading or writing than expected.
"...This HDD is quiet and fast enough. I transferred about 40GB of videos and photos, no loses so far...." Read more
"...I thought it wasn't working because it is so damn quiet. Loud? Who the hell are these people saying these drives are loud? That's crazy." Read more
"...Reasonable quiet and good performance. Great for storage/backups" Read more
"...It is not silent during read/write, but the clicking sound is not disturbing and relatively subdued...." Read more
Customers have mixed opinions about the hard drive performance. Some say it works great as a backup storage drive, with a temperature of 23C in their medium tower. Others report that it immediately crashed and lost all their data, tanking very shortly after buying it.
"...I transferred about 40GB of videos and photos, no loses so far. Disk works as intended with Temperature of 23C in my medium Tower along with other..." Read more
"...However, it was the 8TB drives just simply dying, looking at the smart stats they are erroring billions of times...." Read more
"...Reasonable quiet and good performance. Great for storage/backups" Read more
"Make sure you get a warranty with this product. It crashed and broke when I finally needed it and bricked itself" Read more
Customers are unhappy with the clicking noises the computer drive makes.
"...dock to connect to a computer, just spins and and once a while makes clicking noises. I want a refund." Read more
"...but it's not just the spindle speed; they click too loudly (even louder than other 7200 RPM drives)...." Read more
"dead within 6 months. no warnings or errors, no clicking." Read more
Reviews with images

Not a single bad sector is found
Top reviews from the United States
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- Reviewed in the United States on January 5, 2025Capacity: 6 TBStyle: Small or Home Business NASVerified PurchaseI got Toshiba N300 6TB NAS 3.5 from Amazon. Fast delivery. HDD worked out of the box. CristalDiskInfo shown Zero Power On hours (means brand new). This HDD is quiet and fast enough. I transferred about 40GB of videos and photos, no loses so far. Disk works as intended with Temperature of 23C in my medium Tower along with other Toshiba HDD and Samsung EVO SDD. Zero bad sectors so far. Transfer speed is good also. If , God forbid, it will start acting I'll change my review. But so far so good.
- Reviewed in the United States on January 20, 2025Capacity: 18 TBStyle: Small or Home Business NASVerified PurchaseI have two drives in a RAID 1 config in my new RAID Bay. I thought it wasn't working because it is so damn quiet. Loud? Who the hell are these people saying these drives are loud? That's crazy.
- Reviewed in the United States on January 27, 2025Capacity: 18 TBStyle: Small or Home Business NASVerified PurchaseI recently purchased the 18 TB NA 3.5-inch internal hard drive, and I’m very happy with the product. It arrived quickly and was packaged securely. Setting it up in my NAS home server was a breeze—literally plug and play. I used the network access storage device interface to set it up for the first time, which included wiping the drive and configuring it to work with my hardware.
What made this purchase a bit of a risk is that it’s not listed as Synology-compatible hardware, so I wasn’t entirely sure it would work. However, I’m glad to report that everything is functioning perfectly so far.
I’ll update my review as I continue to use it, but for now, everything is running smoothly, and I’m very satisfied. I’d definitely give this a solid 5 out of 5!
- Reviewed in the United States on February 8, 2025Capacity: 8 TBStyle: Small or Home Business NASVerified PurchaseInstalled in a Synology nas and was not recognized. Installed in a dock to connect to a computer, just spins and and once a while makes clicking noises. I want a refund.
- Reviewed in the United States on December 16, 2024Capacity: 12 TBStyle: Small or Home Business NASVerified PurchaseI have eight of these drives in two QNAP Network Storage Servers. I bought the first dive over 5 years ago and it has been running 24 hours 7 days/week and it is still going. Great harddisk at a reasonable price.
- Reviewed in the United States on January 4, 2025Capacity: 20 TBStyle: Medium or Large Business NASVerified PurchaseI am not using this drive in a classic NAS but rather a external drive housing. Reasonable quiet and good performance. Great for storage/backups
- Reviewed in the United States on March 3, 2025Capacity: 20 TBStyle: Small or Home Business NASVerified PurchaseWorked well out of the box and seems moderately fast (using a MacMini M4 and 8T SSD). It is amazing how even 20T is sometimes not enough for personal use (too many photos and videos). It is not silent during read/write, but the clicking sound is not disturbing and relatively subdued. It might be picked up, however, if recording audio when in use. Be sure to use a sufficiently powered and cooled enclosure (especially given the relative cost differentials).
- Reviewed in the United States on February 10, 2025Capacity: 20 TBStyle: Small or Home Business NASVerified PurchaseI have this in a single bay Synology. It's fast enough for me to stream video games from, while my girlfriend watches movies on emby in the living room. Very happy.
Top reviews from other countries
- El WrayReviewed in Australia on December 5, 2024
5.0 out of 5 stars Excellent
Capacity: 14 TBStyle: Medium or Large Business NASVerified PurchaseGreat packaging, and the drive is still going strong 1 year later. Will order more
- Kennedy KReviewed in Canada on January 29, 2024
5.0 out of 5 stars Long Life with High Duty Cycle
Capacity: 16 TBStyle: Medium or Large Business NASVerified PurchaseThis is the standard drive I use in most of my NAS devices. We have a dozen users who use files on the NAS 16 hours a day, 7 days a week and these drives hold up well. In the past five years, out of 24 drives, I have only had 1 fail. I have tried other brands in the past with slightly worse stats. Note: Toshiba manufactures many other brands as well.
- Philip PigeonReviewed in Canada on September 15, 2024
5.0 out of 5 stars Great hard drive
Capacity: 8 TBStyle: Small or Home Business NASVerified PurchaseI've standardized on Toshiba for years now and haven't had to replace one yet. Much lower defect rate then popular brands. I recommend them highly.
- Malcolm LimReviewed in Singapore on February 10, 2025
5.0 out of 5 stars Great
Capacity: 10 TBStyle: Small or Home Business NASVerified PurchaseGreat
- Alaa AljanadiReviewed in Canada on July 10, 2024
4.0 out of 5 stars Good
Capacity: 8 TBStyle: Small or Home Business NASVerified PurchaseGood