Supersize your enterprise storage - The Seagate Constellation ES.3 enterprise HDD delivers the scalability that data centers need to reliably meet their demanding growth of unstructured data. - Highest-capacity enterprise drive, up to 4TB for maximum density server and storage solutions - Perfect for reliable, 247 bulk data storage - Predictable 7200-RPM performance even in the most rugged multi-drive SAS or SATA environments - Best-in-class energy efficiency with low power and cooling requirements - Protect your data and ease data disposal costs and management with the SED FIPS 140-2 option - Store as many documents, pictures and videos as you need with 3 TB capacity - Experience rapid processing speed with 128 MB cache buffer - Have data stored faster with SATA/600 interface that optimizes burst performance
Supersize your enterprise storage - The Seagate Constellation ES.3 enterprise HDD delivers the scalability that data centers need to reliably meet their demanding growth of unstructured data. - Highest-capacity enterprise drive, up to 4TB for maximum density server and storage solutions - Perfect for reliable, 247 bulk data storage - Predictable 7200-RPM performance even in the most rugged multi-drive SAS or SATA environments - Best-in-class energy efficiency with low power and cooling requirements - Protect your data and ease data disposal costs and management with the SED FIPS 140-2 option - Store as many documents, pictures and videos as you need with 3 TB capacity - Experience rapid processing speed with 128 MB cache buffer - Have data stored faster with SATA/600 interface that optimizes burst performance
in 2 offers
The lowest price for Seagate ST3000NM0033 Seagate TDSourcing Constellation ES.3 Seagate TDSourcing Constellation ES.3 Hard Drive 3 TB Internal 3.5" SATA 6Gbs 7200 RPM Buf right now is $241.96 at DiscTech.com.
The all-time low was $236.41 on 11 Mar 2026 — today's price is 2% above the lowest ever. This is at or near its all-time low — a good time to buy.
Prices last updated 25 Mar 2026.
Seagate ST3000NM0033 Seagate TDSourcing Constellation ES.3 Seagate TDSourcing Constellation ES.3 Hard Drive 3 TB Internal 3.5" SATA 6Gbs 7200 RPM Buf
Supersize your enterprise storage - The Seagate Constellation ES.3 enterprise HDD delivers the scalability that data centers need to reliably meet their demanding growth of unstructured data. - Highest-capacity enterprise drive, up to 4TB for maximum density server and storage solutions - Perfect for reliable, 247 bulk data storage - Predictable 7200-RPM performance even in the most rugged multi-drive SAS or SATA environments - Best-in-class energy efficiency with low power and cooling requirements - Protect your data and ease data disposal costs and management with the SED FIPS 140-2 option - Store as many documents, pictures and videos as you need with 3 TB capacity - Experience rapid processing speed with 128 MB cache buffer - Have data stored faster with SATA/600 interface that optimizes burst performance
Supersize your enterprise storage - The Seagate Constellation ES.3 enterprise HDD delivers the scalability that data centers need to reliably meet their demanding growth of unstructured data. - Highest-capacity enterprise drive, up to 4TB for maximum density server and storage solutions - Perfect for reliable, 247 bulk data storage - Predictable 7200-RPM performance even in the most rugged multi-drive SAS or SATA environments - Best-in-class energy efficiency with low power and cooling requirements - Protect your data and ease data disposal costs and management with the SED FIPS 140-2 option - Store as many documents, pictures and videos as you need with 3 TB capacity - Experience rapid processing speed with 128 MB cache buffer - Have data stored faster with SATA/600 interface that optimizes burst performance
Last updated at 25/03/2026 03:31:01
Seagate Constellation ES.3 ST3000NM0033 3TB Enterprise SATA Hard Drive
Seagate Constellation ES.3 ST3000NM0033 3TB SATA Hard Drives
originally posted on neweggbusiness.com
Garbage. I took my chance with Seagate and they have failed me again! I have had bad luck with Seagate in the past with their drives failing. I have stayed away for from Seagate for about 10 years and the first drive I buy to give them another chance fails after 1 month of light use. Never again will I buy another Seagate product! Funny how ANY other brand has never failed me like JunkGate has..... Junk, Garbage and a waste of time and money! I cant believe Seagate is still in business! Go with Some other company and save yourself a headache!
originally posted on newegg.com
I brought this as game space as I had 2 1Tb before. However, the rough start of this, is making me rethink my purchase. I might get a refund and get a different HDD. Go back to my old 1TB HDD. The problem I'm having with this is the constant DIsk Write Error message. Every time I try to download a game. Half way through or even couple of seconds I get this error. Then I have to shutdown my PC, wait a bit, or unplug the sata and power cord and try again. ( I changed the sata location, still crashes) Not even 24 hours with this and I have gotten a total of 6 Disk Write Error message. Update, New total is now 15 (yay bleh) Looked up the Hours Active on this new HDD. Found out it over 43k hours. This is absurd. I'm not going to buy a constellation ever again. I rather ... MoreI brought this as game space as I had 2 1Tb before. However, the rough start of this, is making me rethink my purchase. I might get a refund and get a different HDD. Go back to my old 1TB HDD. The problem I'm having with this is the constant DIsk Write Error message. Every time I try to download a game. Half way through or even couple of seconds I get this error. Then I have to shutdown my PC, wait a bit, or unplug the sata and power cord and try again. ( I changed the sata location, still crashes) Not even 24 hours with this and I have gotten a total of 6 Disk Write Error message. Update, New total is now 15 (yay bleh) Looked up the Hours Active on this new HDD. Found out it over 43k hours. This is absurd. I'm not going to buy a constellation ever again. I rather buy other Seagate products.
originally posted on ebay.com
I have now purchased tree of these drives. All Seagate, All Constellation class drive. All perfect! they are for 24 hrs of daily use for long term 10 years are expected. design is heavy construction and reliable operation. Mine ran warm the first couple days then cooled right down. Not really what I call quite, but not louder than average noise from hard drive operations. GREAT drives - BUY ONE!
Seagate Constellation ES.3 ST3000NM0033 3TB Enterprise SATA Hard Drive
Seagate Constellation ES.3 ST3000NM0033 3TB SATA Hard Drives
Garbage. I took my chance with Seagate and they have failed me again! I have had bad luck with Seagate in the past with their drives failing. I have stayed away for from Seagate for about 10 years and the first drive I buy to give them another chance fails after 1 month of light use. Never again will I buy another Seagate product! Funny how ANY other brand has never failed me like JunkGate has..... Junk, Garbage and a waste of time and money! I cant believe Seagate is still in business! Go with Some other company and save yourself a headache!
I brought this as game space as I had 2 1Tb before. However, the rough start of this, is making me rethink my purchase. I might get a refund and get a different HDD. Go back to my old 1TB HDD. The problem I'm having with this is the constant DIsk Write Error message. Every time I try to download a game. Half way through or even couple of seconds I get this error. Then I have to shutdown my PC, wait a bit, or unplug the sata and power cord and try again. ( I changed the sata location, still crashes) Not even 24 hours with this and I have gotten a total of 6 Disk Write Error message. Update, New total is now 15 (yay bleh) Looked up the Hours Active on this new HDD. Found out it over 43k hours. This is absurd. I'm not going to buy a constellation ever again. I rather ... MoreI brought this as game space as I had 2 1Tb before. However, the rough start of this, is making me rethink my purchase. I might get a refund and get a different HDD. Go back to my old 1TB HDD. The problem I'm having with this is the constant DIsk Write Error message. Every time I try to download a game. Half way through or even couple of seconds I get this error. Then I have to shutdown my PC, wait a bit, or unplug the sata and power cord and try again. ( I changed the sata location, still crashes) Not even 24 hours with this and I have gotten a total of 6 Disk Write Error message. Update, New total is now 15 (yay bleh) Looked up the Hours Active on this new HDD. Found out it over 43k hours. This is absurd. I'm not going to buy a constellation ever again. I rather buy other Seagate products.
I have now purchased tree of these drives. All Seagate, All Constellation class drive. All perfect! they are for 24 hrs of daily use for long term 10 years are expected. design is heavy construction and reliable operation. Mine ran warm the first couple days then cooled right down. Not really what I call quite, but not louder than average noise from hard drive operations. GREAT drives - BUY ONE!
Disclaimer: My luck with WD Red 2TB and 3 TB drives was so bad that any other brand would be an improvement. Having gotten that tidbit out of the way, the performance profile and warranty were two features that sold me on this drive for a fresh FreeNAS implementation. Scouring the forums, the concerns over power consumption and temperatures were understood and noted. As these drives were being installed in a SuperMicro 825TQ-563LPB chassis, the adequate ventilation provided enough comfort to take the plunge. The pricing offered by Newegg has been excellent for a drive of this class. While my experiences in the Seagate consumer drive line have been hit or miss (1.5 TB Barracuda and 3 TB Barracudas didn't last due to design flaws, the 2 TB 5900 RPM NAS drives were ... MoreDisclaimer: My luck with WD Red 2TB and 3 TB drives was so bad that any other brand would be an improvement. Having gotten that tidbit out of the way, the performance profile and warranty were two features that sold me on this drive for a fresh FreeNAS implementation. Scouring the forums, the concerns over power consumption and temperatures were understood and noted. As these drives were being installed in a SuperMicro 825TQ-563LPB chassis, the adequate ventilation provided enough comfort to take the plunge. The pricing offered by Newegg has been excellent for a drive of this class. While my experiences in the Seagate consumer drive line have been hit or miss (1.5 TB Barracuda and 3 TB Barracudas didn't last due to design flaws, the 2 TB 5900 RPM NAS drives were rock solid - even after UPS turfed them on my doorstep and ran away). Based on the disclaimer and feedback regarding noise levels of the Deskstar NAS drives from a friend that dropped a pair into a Synology DS216+, I decided that the 4 TB Constellation ES.3 was the drive for me. Newegg's packaging was spectacular for these bare/non-retail boxed units. Within the larger boxes were smaller boxes, and within the smaller boxes were air-padded shells protecting the drives. While I'm sure it adds to the overhead of shipping things out, it provides a sense of confidence that bare drives will survive the UPS/USPS/FedEx torture tests. All four drives appear to have been from the same batch, and came with an outdated firmware level of SN04. After trial and error based on incomplete information regarding what is and is not included in the Seagate USB Linux Boot utility, I had successfully brought the drives up to the current firmware level of SN06. Extensive testing was performed between smartctl (short and long), and badblocks. A full disk format followed that to perform one final load/stress test before placing the drives into production. The noted speeds listed in the Pros section of this review are the numbers pulled from the Reporting mechanism within FreeNAS. My pool was created with the RAID-10 equivalent configuration and the data migration off of the QNAP TS-651 was underway. 72 hours later, I received an alert from FreeNAS that the pool was degraded. One of the drives died. I'm actually happy that it failed as quickly as it did after all of the testing since I was still within the standard RMA period. Newegg executed flawlessly in replacing the drive. With a difference of about three weeks between initial receipt of the batch of four and the receipt of the RMA replacement, it appears that the current stock is fresh - newer manufacturing dates and current firmware from the factory. I've been exceptionally pleased with these drives and commend Newegg for having the necessary processes in place to quickly resolve early life failures. In a like-for-like setup (meaning all parameters match, including cache), these drives are hard to beat in the 1TB-4TB capacity ranges. The construction is definitely a level above the consumer grade drives. If you have adequate cooling for your storage needs and the Constellation ES.3 is on the approved list from the commercial off-the-shelf NAS vendor of choice, be sure to pick it up. This is about as good as it gets! For those rolling their own NAS, you'll be impressed. Don't dwell on the past mistakes Seagate has made with its consumer line. The Enterprise drives are worth the cost of admission!
I bought 4 of these a year ago and over the course of that year 3 of the drives have died and stopped being recognized. I would put one star if it were not for the fact I was able to RMA 2 of them without issue; albeit I had to pay for shipping. I have not tried to RMA the most recent failure as I am just going to buy elsewhere. Quite frustrating to have a 75% failure rate on a NAS. Luckily they have been staggered so no data was lost.
This Seagate Hard Drive performs as good as, but not better, than any other hard drive. That is to say, it has tremendous storage capacity for a dirt cheap price, and will give good (speedy) performance until it begins to fill up. Really, don't even consider using this as a boot drive (the drive your operating system is on). Spend $65 for a name brand 256GB SSD, and then install this hard drive in a spare drive bay in your case. Load the operating system on the SSD and store your files on the hard drive. While you are at it, spend $75 on a 2TB USB hard drive and back up all your files to it. You won't regret spending the extra money when one of the hard drives crashes (and they all do eventually).
Wanted a larger hard drive, and this one at 4TB seems just about right. It's built like a tank (quite a bit heavier than I expected. Slipped into my computer's drive cage like a glove; plug in the SATA data and power, and it's good to go! On the specific drive I received, I had to delete the System Reserved partition (someone must have used this as a boot drive) before Windows 7 was completely happy with it, but that did the trick and now it works like a charm. I've put 1.5TB on it, and there's still tons of space left! Don't be bothered by the 5900rpm; I can't tell that this drive is any different than my other 7200rpm drive.
I bought 3 of these to use in a RAID 1 (mirror)--one is internal and I rotate the other 2 in and out of a hot-swap bay as a backup. I chose these over consumer-grade drives due to the increased warranty period. I use the RAID both for long-term storage and to supplement an SSD boot drive, so I also didn't want the high latency that seems inherent to a lot of drives that are designed for NAS or backup. Packaging: The shipping box from B&H contained 3 individual boxes, apparently Seagate's packaging, plus some air bags. Within those individual boxes, each drive was in a plastic clamshell that was then surrounded by bubble wrap. Unfortunately, large sections of the bubble wrap were ruptured by the edges of the clamshells. Fortunately, the flexible ridges around the ... MoreI bought 3 of these to use in a RAID 1 (mirror)--one is internal and I rotate the other 2 in and out of a hot-swap bay as a backup. I chose these over consumer-grade drives due to the increased warranty period. I use the RAID both for long-term storage and to supplement an SSD boot drive, so I also didn't want the high latency that seems inherent to a lot of drives that are designed for NAS or backup. Packaging: The shipping box from B&H contained 3 individual boxes, apparently Seagate's packaging, plus some air bags. Within those individual boxes, each drive was in a plastic clamshell that was then surrounded by bubble wrap. Unfortunately, large sections of the bubble wrap were ruptured by the edges of the clamshells. Fortunately, the flexible ridges around the clamshells and the double-boxing seem to have adequately protected the drives. All 3 passed a long test using Seagate's SeaTools application with no errors. (Apparently SeaTools will provide specific failure information that can be used to initiate an RMA.) None of them make any unusual sounds that can sometimes be indicative of shipping trauma. Noise: When idle (and spinning) these drives are as quiet as any 7200 RPM drives I've had. When seeking, I think they're a little quieter than the 1.5 GB Hitachi drives that I previously used in the hot-swap bay. Even with 2 of them seeking at the same time, and with the hot-swap bay offering little sound insulation, I hear just a low grumbling sound from a few feet away. Speed: Subjectively I haven't noticed a big difference between these and the 7200 RPM consumer-grade drives they replaced, but they seem quite snappy as far as mechanical drives go. I didn't think to do a speed test of an individual drive, but for what it's worth the CrystalDiskMark results (with default settings) for the Intel RAID 1 are as follows: Sequential Read (Q= 32,T= 1) : 149.196 MB/s Sequential Write (Q= 32,T= 1) : 145.538 MB/s Random Read 4KiB (Q= 32,T= 1) : 1.867 MB/s 455.8 IOPS Random Write 4KiB (Q= 32,T= 1) : 1.291 MB/s 315.2 IOPS Sequential Read (T= 1) : 123.525 MB/s Sequential Write (T= 1) : 143.888 MB/s Random Read 4KiB (Q= 1,T= 1) : 1.039 MB/s 253.7 IOPS Random Write 4KiB (Q= 1,T= 1) : 1.232 MB/s 300.8 IOPS Reliability is an unknown at this point, but the 5-year warranty definitely offers peace of mind. (Of course, a solid backup strategy is imperative regardless of any one drive's warranty.) Firmware update: I updated the firmware on all 3 before putting them into service. According to Seagate's documentation, the firmware download package was supposed to include an ISO for creating a disk, but it did not. It did contain an executable for creating a bootable USB drive containing the update utility and firmware files, but the firmware files were missing from the USB drive it created. It wasn't hard to copy the firmware files to the appropriate location on the drive, but still annoying. I'm not lowering my rating since if you're updating HDD firmware you can figure out how to circumvent the problems with the update package. All-in-all I'm happy that I paid the premium for these over cheaper alternatives. (Note that I've used Western Digital almost exclusively for about 15 years, so I'm in no way predisposed to give these preferential treatment. I'm also one of the IT guys at the small company I work for, if that means anything.)
I've historically used the Western Digital RE4 when doing a RAID setup or just a single external or single internal 3.5 inch HDD. However, some of the higher capacity RE4's have been having some functional issues, and so I decided it was time to look elsewhere. When I am buying a HDD, it's generally not used as a primary drive (solid state normally is what I used), and so I generally use the HDD as a backup, parallel, or independent setup to hold large data files I do not want to keep on my SSD's. So it holds a ton of data I find important, and want to keep. So I have a strong preference for drives that more in the ""enterprise"" grade than ""home usage"". Over the past ten years, I have found enterprise drives tend to be more reliable, usually be faster, yet ... MoreI've historically used the Western Digital RE4 when doing a RAID setup or just a single external or single internal 3.5 inch HDD. However, some of the higher capacity RE4's have been having some functional issues, and so I decided it was time to look elsewhere. When I am buying a HDD, it's generally not used as a primary drive (solid state normally is what I used), and so I generally use the HDD as a backup, parallel, or independent setup to hold large data files I do not want to keep on my SSD's. So it holds a ton of data I find important, and want to keep. So I have a strong preference for drives that more in the ""enterprise"" grade than ""home usage"". Over the past ten years, I have found enterprise drives tend to be more reliable, usually be faster, yet pricing is often less expensive than home drives. So my looking elsewhere was really limited to enterprise grade HDDs, more or less. The ratings on the entire Constellation line are, as a whole, generally very positive. The ratings for this particular Constellation (the ES.3) are, as you can see, stellar. The drive is reliable, affordable, and fast. Significant enterprise usage of these drives also shows them to be very, very reliable units. Speed-wise, I think this Constellation can be an upgrade over something like the WD Caviar Black and RE4, and Seagate's own Barracuda. While the specs on paper suggest marginal differences, I find real-world usage of the ES.3 results in very good data speeds for a HDD, and especially for a HDD @ 7200 RPM. Part of this is likely because the ES.3 has a very slow latency in terms of maximum latency time (less than half of what many other high performance HDDs have). The only (non-solid state) drive I have used that is faster is the WD Velociraptor , which is not a practical drive at all. Paired with a good enclosure, and USB3 or ThunderBolt, I think this is one of the best external hard drive setups one could have.
I've bought 6 of these. What they said, plus, Enterprise Grade is a big deal to me. The other big factor is 128 MB cache. Bonus, great price for new (sold as open box) that actually tested as new (0 hrs) from mnu3167.4h9gouwbn. Very pleased : )
