Last updated at 28/10/2026 06:57:35
Seagate Exos St8000nm0055 8tb Sata Iii 256mb Cache 7200rpm 3,5'' Inch
Free delivery
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originally posted on walmart.com
This hdd will format to about 18.4tb of total useable space. Filling may take some time but it can hold ALOT of information. keep in mind that the drive does get hot when writing to the disc. Just keep a dedicated fan on it when in use for long periods of time. During day to day use it performs as expected with an average transfer rate of 140-175mbps. Make sure to put it into a good hdd enclosure or ventilated PC tower.This is a great large drive %26 definitely worth buying.
originally posted on scan.co.uk
I purchased four of these drives to upgrade an existing Synology NAS box. I was previously using 4 x 16Tb Seagate EXOS drives and decided to upgrade to the 20Tb versions. The new drives worked perfectly and the 918+ NAS unit rebuilt the entire array in about 2 days which, given the size, was very impressive. These drives, despite their greater capacity, seem to run cooler than the 16Tb units they replaced. In addition, the new drives spin-up faster from power-save and operate more quietly. An excellent upgrade. The drives supplied were official UK stock and their labels show Seagate UK's address, so these are not grey market units.
originally posted on scan.co.uk
Brought this when it was on offer for just over £300 pushing it above all others for £/TB.I was dubious about spending that much on a single hard drive as there are a lot of refurbished and re-stickered drives in circulation however, once this came and i checked it over it was new.It came packaged in its anti static bag, surrounded by a foam sleeve, inside a carboard box so top notch packaging.Read / Write speeds are as advertised.Noise levels - This is installed in a Gen 10 Microserver under my desk and honestly i can hear it emitting a faint hum when idle but it doesn't bother me. Best way i can describe it is walking into a room in your house and you can faintly hear something, your unsure where the sound is coming from, so you start trying to focus your ... MoreBrought this when it was on offer for just over £300 pushing it above all others for £/TB.I was dubious about spending that much on a single hard drive as there are a lot of refurbished and re-stickered drives in circulation however, once this came and i checked it over it was new.It came packaged in its anti static bag, surrounded by a foam sleeve, inside a carboard box so top notch packaging.Read / Write speeds are as advertised.Noise levels - This is installed in a Gen 10 Microserver under my desk and honestly i can hear it emitting a faint hum when idle but it doesn't bother me. Best way i can describe it is walking into a room in your house and you can faintly hear something, your unsure where the sound is coming from, so you start trying to focus your ears to work out where the noise is. Its like the old Sky HD boxes when they are recording something.In a strange way i like the sound when its under load, you can hear the heads moving, clicking and just generally complaining about being woken up. If it was like that all the time i would probably get annoyed.But remember, these drives are enterprise and meant to be tucked away in a server room. They are not marketed for us pro-consumers.
| Hard drive | |
| Mean time between failures (MTBF) | 2000000 h |
| Hard drive interface transfer rate | 6 Gbit/s |
| Average latency | 4.16 ms |
| Component for | NAS |
Seagate Exos St8000nm0055 8tb Sata Iii 256mb Cache 7200rpm 3,5'' Inch
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!
This hdd will format to about 18.4tb of total useable space. Filling may take some time but it can hold ALOT of information. keep in mind that the drive does get hot when writing to the disc. Just keep a dedicated fan on it when in use for long periods of time. During day to day use it performs as expected with an average transfer rate of 140-175mbps. Make sure to put it into a good hdd enclosure or ventilated PC tower.This is a great large drive %26 definitely worth buying.
I purchased four of these drives to upgrade an existing Synology NAS box. I was previously using 4 x 16Tb Seagate EXOS drives and decided to upgrade to the 20Tb versions. The new drives worked perfectly and the 918+ NAS unit rebuilt the entire array in about 2 days which, given the size, was very impressive. These drives, despite their greater capacity, seem to run cooler than the 16Tb units they replaced. In addition, the new drives spin-up faster from power-save and operate more quietly. An excellent upgrade. The drives supplied were official UK stock and their labels show Seagate UK's address, so these are not grey market units.
Brought this when it was on offer for just over £300 pushing it above all others for £/TB.I was dubious about spending that much on a single hard drive as there are a lot of refurbished and re-stickered drives in circulation however, once this came and i checked it over it was new.It came packaged in its anti static bag, surrounded by a foam sleeve, inside a carboard box so top notch packaging.Read / Write speeds are as advertised.Noise levels - This is installed in a Gen 10 Microserver under my desk and honestly i can hear it emitting a faint hum when idle but it doesn't bother me. Best way i can describe it is walking into a room in your house and you can faintly hear something, your unsure where the sound is coming from, so you start trying to focus your ... MoreBrought this when it was on offer for just over £300 pushing it above all others for £/TB.I was dubious about spending that much on a single hard drive as there are a lot of refurbished and re-stickered drives in circulation however, once this came and i checked it over it was new.It came packaged in its anti static bag, surrounded by a foam sleeve, inside a carboard box so top notch packaging.Read / Write speeds are as advertised.Noise levels - This is installed in a Gen 10 Microserver under my desk and honestly i can hear it emitting a faint hum when idle but it doesn't bother me. Best way i can describe it is walking into a room in your house and you can faintly hear something, your unsure where the sound is coming from, so you start trying to focus your ears to work out where the noise is. Its like the old Sky HD boxes when they are recording something.In a strange way i like the sound when its under load, you can hear the heads moving, clicking and just generally complaining about being woken up. If it was like that all the time i would probably get annoyed.But remember, these drives are enterprise and meant to be tucked away in a server room. They are not marketed for us pro-consumers.
I'm on my 8th drive and *knock on wood* no issues or failures. I've purchased from X16, X18, and now X20 series. They've been flawless. I'm using mine in NAS setups and they see a consistent workload pretty much 24-7. These are designed for data centers so no concerns. They are noisy for hard drives. If noise is a concern the Iron Wolf series is quieter. But Seagate claims twice the mean time between failures for Exos so it's worth it in my opinion. The internet seems to hold the Exos line in high esteem so I felt the was the best option for me.Read write performance varies based on workload but in my setup doing file transfers I've seen single disk speeds of 265MB/s read and 170MB/s write. That's about the limit of my setup so I can't speak to what your results ... MoreI'm on my 8th drive and *knock on wood* no issues or failures. I've purchased from X16, X18, and now X20 series. They've been flawless. I'm using mine in NAS setups and they see a consistent workload pretty much 24-7. These are designed for data centers so no concerns. They are noisy for hard drives. If noise is a concern the Iron Wolf series is quieter. But Seagate claims twice the mean time between failures for Exos so it's worth it in my opinion. The internet seems to hold the Exos line in high esteem so I felt the was the best option for me.Read write performance varies based on workload but in my setup doing file transfers I've seen single disk speeds of 265MB/s read and 170MB/s write. That's about the limit of my setup so I can't speak to what your results will be. The onboard cache seems to be plenty. I know other disks are moving to larger caches but I'm not sure if it's needed for a single actuator drive.I've got 150hrs+ on this drive so we're probably out of the risk zone of dead in a day or two problems with HDDs. I have thousands of hours on the X18s and X16s. And much of that is write cycles. I highly recommend Exos for any kind of storage use case. For instance this unit I placed in a 3.5in external enclosure for portable storage. And it still came in less than what some 20TB external drives sell for. Plug for the NOVUS usb enclosure. It's a great box for these or any other 3.5in HDD.
I've only done an initial simple test to ensure it's working correctly. I know others have said it's noisy. Mine isn't. Yes, there is an audible clicking when the drive first powers on; that has never ever ever been a concern of mine since I'm not using the computer when a drive initializes. It got a little warm after writing 150GB to it. I did 3 separate writes at 50GB each using 2GB files, using Win7. They were spaced out in time so the drive would run for a while. I didn't run test software. After writing 50GB the write speed was recorded at 216MB/s. This is easily the fastest drive I have. Since Windows 7 shows an average, I can't say that it was writing @ 216MB/s after 50GB was written, I can only say the average write time for writing 50GB at the beginning of ... MoreI've only done an initial simple test to ensure it's working correctly. I know others have said it's noisy. Mine isn't. Yes, there is an audible clicking when the drive first powers on; that has never ever ever been a concern of mine since I'm not using the computer when a drive initializes. It got a little warm after writing 150GB to it. I did 3 separate writes at 50GB each using 2GB files, using Win7. They were spaced out in time so the drive would run for a while. I didn't run test software. After writing 50GB the write speed was recorded at 216MB/s. This is easily the fastest drive I have. Since Windows 7 shows an average, I can't say that it was writing @ 216MB/s after 50GB was written, I can only say the average write time for writing 50GB at the beginning of the disk is 216MB/s using large files. For a 50GB write I imagine the effects of buffering are still showing in the average (not much), but this is a real world scenario, which testing a drive using other software doesn't really give very well. It gives numbers for you to evaluate the drive in relation to other drives, but real world is writing files from one place to another and then using that data, so of COURSE buffering comes into play for actual drive usage. The heat is minimal for an 8TB drive spinning at 7200RPM, and it's comparable to the WD NAS 8TB drive that spins at 5400 RPM and doesn't give nearly the performance. Maybe a touch warmer. I can't speak to reliability since I've only run it for about 1 hr. When finding this on sale, it's worth every penny in my book.
I hope this review is helpful to anyone looking at this line of drives and worried about some of the posted reviews related to experience/reliability. I have several hundred of the Seagate EXOS series drives from 1Tib to 14Tib deployed on production systems which I own, rent or administer - in all types of environments from climate controlled datacenter deployments to hot and dirty network closets in industrial environments. These products shine in Mission Critical NAS/SAN Storage, High availability Transactional Databases, Corporate Video Surveillance Storage Systems, Web Server Clusters and Email Server Clusters. I also deploy them in high powered workstations where endurance is necessary and/or desired. All of this endurance/reliability does not mean these drives ... MoreI hope this review is helpful to anyone looking at this line of drives and worried about some of the posted reviews related to experience/reliability. I have several hundred of the Seagate EXOS series drives from 1Tib to 14Tib deployed on production systems which I own, rent or administer - in all types of environments from climate controlled datacenter deployments to hot and dirty network closets in industrial environments. These products shine in Mission Critical NAS/SAN Storage, High availability Transactional Databases, Corporate Video Surveillance Storage Systems, Web Server Clusters and Email Server Clusters. I also deploy them in high powered workstations where endurance is necessary and/or desired. All of this endurance/reliability does not mean these drives are not at ease in the average home computer because they work great in an 'everyday' application if you don't mind the cost of entry. The workstation where I am writing this review has a pair of 1Tib Segate Enterprise drives in RAID 1 which have been happily spinning along for 5+ years. The bottom line is this: if your data or the data of your clients is important, these discs are an exceptional choice for reliability and high ROI (return on investment). I see reviews complaining about disc failures related to the EXOS/Enterprise line, I can confidently pass on that I have experienced no such problem with this line of drives. I have NEVER had an EXOS/Enterprise drive come DOA. This doesn't mean that DOA drives don't show up, I have simply never experienced this issue. Again, these drives are targeted for ENTERPRISE level storage systems - they can and do fail like any equipment. That being said, Seagate has NEVER failed to Warranty a failed disc (within the warranty period) from the systems within my responsibility. The difference here might be - ENTERPRISE users keep backup drives on site and in stock for immediate replacement when eventual failures occur so this generally does not become a game ending issue and warranty processing wait times are non-critical. As a service to people looking at this line of drives I checked the average age of my running drives and 65% of the deployed stock has been installed in production environments for 5+ years (approximately 250 drives). I have not had an EXOS disc failure in 235 days (as of this review). I generally purchase some of my discs directly from NEWEGG when the prices are right. Never a warranty issue related to direct purchase from a Seagate authorized reseller. MY CONCLUSION/OPINION: This is an exceptional line of ENTERPRISE level products with a good warranty and superb return on investment.
I absolutely love these drives. however several were DOA because Walmart literally just threw all the drives in a box with little to no protection. They used a single air bubble to hold 7 drives in place and prevent shifting side to side. This popped in shipping. My guess is because they didn’t put anything on the top of the drives. So they could bounce around completely in the box. Idk why these drives weren’t kept in their original shipping containers. But I’m sure even the drives that survived, will have premature deaths
Looking to purchase 4 new ones. Unfortunately, when I saw this, I ordered two orders for NewEgg, both came in non-OEM packaging bubble wrap, in a sealed bag. Verified the Serial on the Seagate website and was short a year of the 5 years stated. not sure if they were new or used and I returned all 4 HDD. I am not saying NewEgg is the issue always had good experiences other than I no risking the unknown in my NASs
I decided to populate my newest 24-slot Synology NAS setup with a mix of these babies and their smaller kindred rather than pay exorbitant prices for the OEM drives... and I've been extremely happy with the result. A simple patch to the system supported drive database (search GitHub for Synology_HDD_db) stops DSM (currently 7.2.1.) from complaining about them and they've run flawlessly as fully supported drives for months. (Note: some DSM updates may require a repeat application of the regularly updated patch, so installing it as a scheduled repeating task may be desirable.)
We've used these in a SAN before with good results. Using now in a NAS. Building it out, we ordered 17 for a 16 drive box enclosure. Highly suggest having extras: three of the original 16 were DOA. B&H replaced rapidly, with no issues - now full NAS is running at speed. Seems normal, but odd to have so many fail immediately.
| Hard drive | |
| Mean time between failures (MTBF) | 2000000 h |
| Hard drive interface transfer rate | 6 Gbit/s |
| Average latency | 4.16 ms |
| Component for | NAS |
The Exos pro hard drive enables bulk data storage for data centers that require a highly reliable enterprise hard drive. The Exos 7E8 provides cost-effective, reliable access to unstructured data. Built on proven ninth-generation CMR technology, the Exos 7E8 drive helps catalyze the data sphere. As a result, data center architects and IT professionals benefit from proven performance, superior reliability and security, and low total cost of ownership for demanding environments in 24 X 7 continuous operation.
The Exos pro hard drive enables bulk data storage for data centers that require a highly reliable enterprise hard drive. The Exos 7E8 provides cost-effective, reliable access to unstructured data. Built on proven ninth-generation CMR technology, the Exos 7E8 drive helps catalyze the data sphere. As a result, data center architects and IT professionals benefit from proven performance, superior reliability and security, and low total cost of ownership for demanding environments in 24 X 7 continuous operation.
in 1 offers
The lowest price for Seagate HDD 3.5" SATA 8TB Enterprise ST8000NM0055 right now is $1,053.80 at eBay.com.au.
The all-time low was $192.83 on 6 June 2026 — today's price is 446% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 28 Oct 2026.
Seagate HDD 3.5" SATA 8TB Enterprise ST8000NM0055
The Exos pro hard drive enables bulk data storage for data centers that require a highly reliable enterprise hard drive. The Exos 7E8 provides cost-effective, reliable access to unstructured data. Built on proven ninth-generation CMR technology, the Exos 7E8 drive helps catalyze the data sphere. As a result, data center architects and IT professionals benefit from proven performance, superior reliability and security, and low total cost of ownership for demanding environments in 24 X 7 continuous operation.
The Exos pro hard drive enables bulk data storage for data centers that require a highly reliable enterprise hard drive. The Exos 7E8 provides cost-effective, reliable access to unstructured data. Built on proven ninth-generation CMR technology, the Exos 7E8 drive helps catalyze the data sphere. As a result, data center architects and IT professionals benefit from proven performance, superior reliability and security, and low total cost of ownership for demanding environments in 24 X 7 continuous operation.
