Toshiba N300 12TB NAS 3.5-inch Internal Hard Drive - CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG51CXZSTA
Designed for use in RAID or NAS arrays with 1 to 8 drive bays, the 12TB N300 7200 rpm SATA III 3.5" Internal NAS HDD from Toshiba meets the reliability, performance, endurance, and scalability requirements of 24/7 NAS applications for personal, home office, and small business use. This 12TB drive operates using a SATA III 6 Gb/s interface, a 512MB cache, and a rotational speed of 7200 rpm, all of which help to ensure uninterrupted data transfers with a rate of up to 281 MB/s. This drive also features high levels of reliability, with 300,000 load/unload cycles, 1 in 10 14 non-recoverable read errors per bits read, a workload rate of up to 180TB per year, and a 1.2 million hour MTTF. Shock protection is provided by a rotational vibration sensor, while ramp loading helps reduce wear and Error Recovery Control limits recovery time to help optimize error correction.
Designed for use in RAID or NAS arrays with 1 to 8 drive bays, the 12TB N300 7200 rpm SATA III 3.5" Internal NAS HDD from Toshiba meets the reliability, performance, endurance, and scalability requirements of 24/7 NAS applications for personal, home office, and small business use. This 12TB drive operates using a SATA III 6 Gb/s interface, a 512MB cache, and a rotational speed of 7200 rpm, all of which help to ensure uninterrupted data transfers with a rate of up to 281 MB/s. This drive also features high levels of reliability, with 300,000 load/unload cycles, 1 in 10 14 non-recoverable read errors per bits read, a workload rate of up to 180TB per year, and a 1.2 million hour MTTF. Shock protection is provided by a rotational vibration sensor, while ramp loading helps reduce wear and Error Recovery Control limits recovery time to help optimize error correction.
Designed for use in RAID or NAS arrays with 1 to 8 drive bays, the 12TB N300 7200 rpm SATA III 3.5" Internal NAS HDD from Toshiba meets the reliability, performance, endurance, and scalability requirements of 24/7 NAS applications for personal, home office, and small business use. This 12TB drive operates using a SATA III 6 Gb/s interface, a 512MB cache, and a rotational speed of 7200 rpm, all of which help to ensure uninterrupted data transfers with a rate of up to 281 MB/s. This drive also features high levels of reliability, with 300,000 load/unload cycles, 1 in 10 14 non-recoverable read errors per bits read, a workload rate of up to 180TB per year, and a 1.2 million hour MTTF. Shock protection is provided by a rotational vibration sensor, while ramp loading helps reduce wear and Error Recovery Control limits recovery time to help optimize error correction.
Designed for use in RAID or NAS arrays with 1 to 8 drive bays, the 12TB N300 7200 rpm SATA III 3.5" Internal NAS HDD from Toshiba meets the reliability, performance, endurance, and scalability requirements of 24/7 NAS applications for personal, home office, and small business use. This 12TB drive operates using a SATA III 6 Gb/s interface, a 512MB cache, and a rotational speed of 7200 rpm, all of which help to ensure uninterrupted data transfers with a rate of up to 281 MB/s. This drive also features high levels of reliability, with 300,000 load/unload cycles, 1 in 10 14 non-recoverable read errors per bits read, a workload rate of up to 180TB per year, and a 1.2 million hour MTTF. Shock protection is provided by a rotational vibration sensor, while ramp loading helps reduce wear and Error Recovery Control limits recovery time to help optimize error correction.
in 4 offers
The lowest price for Toshiba N300 12TB NAS 3.5-inch Internal Hard Drive - CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG51CXZSTA right now is $507.00 at PCByte AU, compared across 4 retailers.
The all-time low was $356.46 on 8 May 2026 — today's price is 42% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 14 May 2026.
Last updated at 14/05/2026 05:20:24
Toshiba N300 12TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG51CXZSTA
Free delivery
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Toshiba 12TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage (HDWG51CAZSTA)
Toshiba 12TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage (HDWG51CAZSTA)
30-day returns
Toshiba N300 12 Tb Nas 3.5 Inch Internal Hard Drive Cmr Sata 6 Gb/S 7200 Rpm 512 Mb Cache Hdwg51 Cxzsta
Delivery between 20–23 May $29
originally posted on lazada.sg
I'm very upset with NinjaVan. They delivered very late at 10.48pm. They didn't even sound the door bell at my gate although I waited inside the house. My cctv showed they just threw it into my house. This is a delicate computer harddisk. I hope its quality is not affected. Very Unprofessional. Lazada has to fix the delivery issue with Ninja Van ASAP.
originally posted on neweggbusiness.com
I got this drive for media storage. It only has about 700 gigs on it and the read speeds have gotten so low that it has rendered it practically useless. No, my sata lanes are not throttled; I can hook up a 1tb WD on the same port/cable and get over 200 mb/s every time, and I have tried hooking the Toshiba up to every other sata port I have on 3 separate pc's as well as my friend's pc, none of which have changed the read speeds. Eventually I decided to short stroke this hdd into 3 partitions as a last resort hail mary before sending it in for warranty. That has gotten my first partition of 600gb to read/write around 100 mb/s with the other two 1.5tb partitions severely degrading in performance the closer it gets to the platter's middle. It's usable now anyway, that's ... MoreI got this drive for media storage. It only has about 700 gigs on it and the read speeds have gotten so low that it has rendered it practically useless. No, my sata lanes are not throttled; I can hook up a 1tb WD on the same port/cable and get over 200 mb/s every time, and I have tried hooking the Toshiba up to every other sata port I have on 3 separate pc's as well as my friend's pc, none of which have changed the read speeds. Eventually I decided to short stroke this hdd into 3 partitions as a last resort hail mary before sending it in for warranty. That has gotten my first partition of 600gb to read/write around 100 mb/s with the other two 1.5tb partitions severely degrading in performance the closer it gets to the platter's middle. It's usable now anyway, that's about the best I can say for it. The first 600 gigs benchmark at 180 mb/s but even when it's short stroked I still get nowhere near those speeds, and even at it's best performance on the short stroke it is still 60 mb/s away from advertised speeds. I have only ever used Western Digital hdd's over my 30+ years of pc'ing, and this is exactly why. Stay far away from this drive. It's a 4 tb drive with only 600 gigs that are actually usable. Pathetic. I'll be sending it in for warranty, but from what I have read, Toshiba's warranty department is flat out garbage and they don't actually send you a new drive, just a check for your purchase price. So if you get this drive on sale, you are doomed. Stay away.
originally posted on neweggbusiness.com
I bought this HDD for my NAS server. Typically I have always used enterprise level drives such as Ultrastar 7k4000 but I saw this Toshiba N300 on sale and well, you get what you pay for. I installed this drive in my server, booted it up, and after resilvering the RAID setup it worked great for about an hour. Now i get SMART fail tests every 30 minutes (see below) : Apr 6 20:36:24 NASSRVR01 smartd[2086]: Device: /dev/ada0, FAILED SMART self-check. BACK UP DATA NOW! Apr 6 20:36:24 NASSRVR01 smartd[2086]: Device: /dev/ada0, Failed SMART usage Attribute: 7 Seek_Error_Rate. Apr 6 21:06:23 NASSRVR01 smartd[2086]: Device: /dev/ada0, FAILED SMART self-check. BACK UP DATA NOW! Apr 6 21:06:23 NASSRVR01 smartd[2086]: Device: /dev/ada0, Failed SMART usage Attribute: 7 ... MoreI bought this HDD for my NAS server. Typically I have always used enterprise level drives such as Ultrastar 7k4000 but I saw this Toshiba N300 on sale and well, you get what you pay for. I installed this drive in my server, booted it up, and after resilvering the RAID setup it worked great for about an hour. Now i get SMART fail tests every 30 minutes (see below) : Apr 6 20:36:24 NASSRVR01 smartd[2086]: Device: /dev/ada0, FAILED SMART self-check. BACK UP DATA NOW! Apr 6 20:36:24 NASSRVR01 smartd[2086]: Device: /dev/ada0, Failed SMART usage Attribute: 7 Seek_Error_Rate. Apr 6 21:06:23 NASSRVR01 smartd[2086]: Device: /dev/ada0, FAILED SMART self-check. BACK UP DATA NOW! Apr 6 21:06:23 NASSRVR01 smartd[2086]: Device: /dev/ada0, Failed SMART usage Attribute: 7 Seek_Error_Rate. I don't know how I can get a replacement from Toshiba, but I read somewhere that this specific batch (July 2021) had a faulty motherboard so my guess is they dumped it on 3rd parties like Newegg to unload it for a cheap price. Thanks Toshiba!
| Storage Capacity | 12 TB SATA III (6 Gb/s) 3.5" HDD (7200 rpm) |
| Read Speed | Maximum- 281 MB/s |
| Write Speed | Maximum- 281 MB/s |
| Buffer | 512 MB |
| Disk Sector Format | 512e |
Toshiba N300 12TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG51CXZSTA
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Toshiba 12TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage (HDWG51CAZSTA)
Toshiba 12TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage (HDWG51CAZSTA)
30-day returns
Toshiba N300 12 Tb Nas 3.5 Inch Internal Hard Drive Cmr Sata 6 Gb/S 7200 Rpm 512 Mb Cache Hdwg51 Cxzsta
Delivery between 20–23 May $29
I'm very upset with NinjaVan. They delivered very late at 10.48pm. They didn't even sound the door bell at my gate although I waited inside the house. My cctv showed they just threw it into my house. This is a delicate computer harddisk. I hope its quality is not affected. Very Unprofessional. Lazada has to fix the delivery issue with Ninja Van ASAP.
I got this drive for media storage. It only has about 700 gigs on it and the read speeds have gotten so low that it has rendered it practically useless. No, my sata lanes are not throttled; I can hook up a 1tb WD on the same port/cable and get over 200 mb/s every time, and I have tried hooking the Toshiba up to every other sata port I have on 3 separate pc's as well as my friend's pc, none of which have changed the read speeds. Eventually I decided to short stroke this hdd into 3 partitions as a last resort hail mary before sending it in for warranty. That has gotten my first partition of 600gb to read/write around 100 mb/s with the other two 1.5tb partitions severely degrading in performance the closer it gets to the platter's middle. It's usable now anyway, that's ... MoreI got this drive for media storage. It only has about 700 gigs on it and the read speeds have gotten so low that it has rendered it practically useless. No, my sata lanes are not throttled; I can hook up a 1tb WD on the same port/cable and get over 200 mb/s every time, and I have tried hooking the Toshiba up to every other sata port I have on 3 separate pc's as well as my friend's pc, none of which have changed the read speeds. Eventually I decided to short stroke this hdd into 3 partitions as a last resort hail mary before sending it in for warranty. That has gotten my first partition of 600gb to read/write around 100 mb/s with the other two 1.5tb partitions severely degrading in performance the closer it gets to the platter's middle. It's usable now anyway, that's about the best I can say for it. The first 600 gigs benchmark at 180 mb/s but even when it's short stroked I still get nowhere near those speeds, and even at it's best performance on the short stroke it is still 60 mb/s away from advertised speeds. I have only ever used Western Digital hdd's over my 30+ years of pc'ing, and this is exactly why. Stay far away from this drive. It's a 4 tb drive with only 600 gigs that are actually usable. Pathetic. I'll be sending it in for warranty, but from what I have read, Toshiba's warranty department is flat out garbage and they don't actually send you a new drive, just a check for your purchase price. So if you get this drive on sale, you are doomed. Stay away.
I bought this HDD for my NAS server. Typically I have always used enterprise level drives such as Ultrastar 7k4000 but I saw this Toshiba N300 on sale and well, you get what you pay for. I installed this drive in my server, booted it up, and after resilvering the RAID setup it worked great for about an hour. Now i get SMART fail tests every 30 minutes (see below) : Apr 6 20:36:24 NASSRVR01 smartd[2086]: Device: /dev/ada0, FAILED SMART self-check. BACK UP DATA NOW! Apr 6 20:36:24 NASSRVR01 smartd[2086]: Device: /dev/ada0, Failed SMART usage Attribute: 7 Seek_Error_Rate. Apr 6 21:06:23 NASSRVR01 smartd[2086]: Device: /dev/ada0, FAILED SMART self-check. BACK UP DATA NOW! Apr 6 21:06:23 NASSRVR01 smartd[2086]: Device: /dev/ada0, Failed SMART usage Attribute: 7 ... MoreI bought this HDD for my NAS server. Typically I have always used enterprise level drives such as Ultrastar 7k4000 but I saw this Toshiba N300 on sale and well, you get what you pay for. I installed this drive in my server, booted it up, and after resilvering the RAID setup it worked great for about an hour. Now i get SMART fail tests every 30 minutes (see below) : Apr 6 20:36:24 NASSRVR01 smartd[2086]: Device: /dev/ada0, FAILED SMART self-check. BACK UP DATA NOW! Apr 6 20:36:24 NASSRVR01 smartd[2086]: Device: /dev/ada0, Failed SMART usage Attribute: 7 Seek_Error_Rate. Apr 6 21:06:23 NASSRVR01 smartd[2086]: Device: /dev/ada0, FAILED SMART self-check. BACK UP DATA NOW! Apr 6 21:06:23 NASSRVR01 smartd[2086]: Device: /dev/ada0, Failed SMART usage Attribute: 7 Seek_Error_Rate. I don't know how I can get a replacement from Toshiba, but I read somewhere that this specific batch (July 2021) had a faulty motherboard so my guess is they dumped it on 3rd parties like Newegg to unload it for a cheap price. Thanks Toshiba!
I am using this hard drive as a primary desktop drive (EXT4 format) running Mageia Linux. The HDWQ140 replaced a PATA Seagate Barracuda ST3500630A, so any comparisons I make are relative to that hard drive. The Toshiba is fast: cold boot times (from power-on to desktop login) have gone from roughly 1 minute 15 seconds to about 25 seconds. Three runs of hdparm -Ttv yielded speeds of around 200MB/sec, in line with what Toshiba reports, so I have no issues with the drive's speed. The HDWQ140's sounds are pitched higher than my old ST3500630A's. When reading/writing, the Toshiba makes a "chir-chir" sound whereas the ST3500630A made more of a "dut-dut" sound. That being said, I do not find these sounds unpleasant, but they are audible. In my particular setup, the major ... MoreI am using this hard drive as a primary desktop drive (EXT4 format) running Mageia Linux. The HDWQ140 replaced a PATA Seagate Barracuda ST3500630A, so any comparisons I make are relative to that hard drive. The Toshiba is fast: cold boot times (from power-on to desktop login) have gone from roughly 1 minute 15 seconds to about 25 seconds. Three runs of hdparm -Ttv yielded speeds of around 200MB/sec, in line with what Toshiba reports, so I have no issues with the drive's speed. The HDWQ140's sounds are pitched higher than my old ST3500630A's. When reading/writing, the Toshiba makes a "chir-chir" sound whereas the ST3500630A made more of a "dut-dut" sound. That being said, I do not find these sounds unpleasant, but they are audible. In my particular setup, the major annoyance is a slight "hiccup" every five seconds or so, which I think is a read/write of minimal data, but I do not think this is the fault of the drive; my guess is that either the OS or the programs I am using (or both) are to blame. Toshiba packages the hard drive in a plastic bag (which did not appear to be an anti-static one) and fits it snugly into a 2-piece "sleeve" that has multiple plastic air cushions, so it does seem as if there is no way for it to move around inside the box. There are no SATA cables or screws, so make sure you pick some up elsewhere.
I received 2 boxes, one was empty and the other one had this drive. Came a few days later, must've been a small mistake from the warehouse or something.The drive itself works amazing! High speed and worked instantly. Beware that if you plan to use veracrypt on this drive that it will only work with a max of 14.7tb partition (16tb drive standard). I had to break this drive into 2 partitions to veracrypt it. One 14.7tb partition and another sperate 2tb partition. You cannot encrypt the whole drive.
Dropped a star due to the vibration issues. For a NAS drive I'm a little disappointed with the amount of vibration from this drive. Admittedly, this is the first 'really big' capacity I've bought, so is this normal, I don't know. Data transfer rates are good with it mounted in a new Asustor NAS enclosure bought to replace old QNAP's. When accessing the drive the data read/write operations are quite noisy too, popping away noticeably so. Do I regret buying this Toshiba, no, however, time will tell if it was the wrong choice. Would I purchase again? No, I think I'd go for a different make.
Purchased two for new DS214+ Synology NAS unit - Work GREAT! Super easy install in synology NAS unit. You DO have to say, YES it's I know these are not the recommended Synology (Toshiba) Drives that Synology recommends..... But, nonetheless, they work without any issues I can determine. Installed as a Mirror RAID1 system. Ends up 7.3TB usable space... plenty fast, quiet, suits intended purpose. Would definitely recommend to others for Use in dual drive NAS unit!
| Storage Capacity | 12 TB SATA III (6 Gb/s) 3.5" HDD (7200 rpm) |
| Read Speed | Maximum- 281 MB/s |
| Write Speed | Maximum- 281 MB/s |
| Buffer | 512 MB |
| Disk Sector Format | 512e |