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Item#: N82E16822178379

Seagate Desktop SSHD ST4000DX001 4TB 64MB Cache SATA 6.0Gb/s 3.5" Solid State Hybrid Drive Bare Drive

  • Backed by a 5-year limited warranty
  • Solid state speed for fast, responsive system performance
  • Innovative use of solid state memory delivers affordable performance and capacity
  • NAND Flash and HDD technology

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the Seagate ST4000DX001

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details

Customer Reviews of the Seagate ST4000DX001

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4 out of 5 eggsA Great Drive

This review is from: Seagate Desktop SSHD ST4000DX001 4TB 64MB Cache SATA 6.0Gb/s 3.5" Solid State Hybrid Drive Bare Drive

Pros: First off, I want to start by saying that I bought this drive because of its manufacturer as well as for the price to GB ratio. Its on an amazing sale at the time of this writing and you cant beat the speed and capabilities of this drive.

I've had it in my PC for about a month now, its very quiet even under a lot of load and doesn't run very hot. My old drive lasted me about 4 years but recently started making noises so I know when to cut my losses. Install was easy. As far as a normal hard drive goes, this drive performs very well. I don't have a bunch of numbers to post, but compared to my older HD, my computer boots and runs files much faster. This hard drive is no SSD drive though as a true SSD would be leagues ahead of it, HOWEVER, good luck trying to afford a 4TB SSD, even if they exist yet.

Cons: I said above the install was easy, yeah, for the hardware. Getting it actually set up was another issue. The drive came completely unformatted, which really isn't a problem, but I couldn't even see the drive after hooking it up from my OS. I had to do a clean install from the ground up and in that install I formatted the HD. I should have been able to do that using the OS but I couldn't even do that let alone a system clone. Then when I was formatting it, I ran in to additional issues. For whatever reason only about 2TB of memory was allocated to my formatted drive. The other 2TB is inaccessible for some reason. Truthfully, I don't care, I wont even use up 2TB, but I would at least like the option of using my whole HD. Why the issues arose, I dont know and I don't have the time or the energy to fix them.

Other Thoughts: All things considered, it's not a bad hard drive, there were some software issues but not enough to phone home about.

Manufacturer Response:

Dear Travis D,

If you are installing Windows 7 or above, make sure the GPT partition type is used because MBR will have a limitation up to 2TB in size. There are other possible computer system or operating system limitations when using drives larger than 2.2TB. The following support article outlines these limitations and provides some suggestions for resolving them:

http://knowledge.seagate.com/articles/en_US/FAQ/218619en

If you have additional questions or concerns, please contact our support staff directly and we will be happy to assist further:

http://support2.seagate.com/

Best Regards,
Seagate Support

Did you find this review helpful? Yes No

  • ERIC H.
  • 5/25/2016 10:28:23 AM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsJunk.

This review is from: Seagate Desktop SSHD ST4000DX001 4TB 64MB Cache SATA 6.0Gb/s 3.5" Solid State Hybrid Drive Bare Drive

Pros: It worked for a few days...

Cons: Then it disappeared from the computer. Not present in explorer or in device manager. Hard reboot will get it back for a few days more. On my third warranty replacement, all with the same results. Have tried several troubleshooting procedures: different sata ports, new sata controller card. No good.

Other Thoughts: The only thing this drive has done for me is enrich ups at my expense.

Manufacturer Response:

Dear Eric,

We apologize for the problems experienced with your 4TB Desktop SSHD, as the is certainly not typical or expected. We would like the opportunity to talk with you to determine the root cause and available resolution.

A support case (#05715710) has been created that will reference your review and our response. Please contact us directly using the following link:

http://support2.seagate.com/

Best Regards,
Seagate Support

1 out of 1 people found this review helpful. Did you? Yes No

4 out of 5 eggsLots of backup drive storage

This review is from: Seagate Desktop SSHD ST4000DX001 4TB 64MB Cache SATA 6.0Gb/s 3.5" Solid State Hybrid Drive Bare Drive

Pros: This drive has run with no problems through several weeks of testing. It is virtually silent and cool running. Overall it seemed like a high quality drive. The 4 TB formatted to 3.61 Tb, which is what you would expect.

This drive looks and installs like any 3 ½ inch hard drive, and seems to work much the same.
Read and write speeds averaged about 160 Mb per second.

The speed is respectable for a 7200 RPM drive. Overall this drive seemed a little faster than my Western Digital black mechanical drives. I am using it for a backup drive without issues. I use a 256 GB SSD as my system drive, running Windows 10.

I’ve never been a big fan of hybrid drives; they transfer data at a fraction of the speed of full SSD drives. But then if you wanted a 4 Tb SSD drive it would cost over $2000.

This drive has a 5 year warranty, which is exceptional for a Seagate drive.

The drive came as a bare drive securely wrapped in bubble wrap specifically for a hard drive, with no accessories, which was fine.

Cons: I have found no negatives except that if you bought this drive expecting anything even close to SSD performance, you will be disappointed, very disappointed. I don’t know why they advertise this drive a being 4X faster than a mechanical drive – it is simply not true.

Some reviewers talk about avoiding Seagate drive because of a high failure rate, but this had not been my experience in 15 years of building computers.

Other Thoughts: Having a hybrid drive is nearly pointless as a secondary storage or backup drive. This model isn't fast enough to be a high performing main system drive for Windows 10. I’m not sure where this is supposed to fit into the hard drive food chain.

If the price for a hybrid device like is comparable to a standard HDD, why not buy the hybrid?

1 out of 1 people found this review helpful. Did you? Yes No

5 out of 5 eggsGreat Speed Compromise for Gamers

This review is from: Seagate Desktop SSHD ST4000DX001 4TB 64MB Cache SATA 6.0Gb/s 3.5" Solid State Hybrid Drive Bare Drive

Pros: Love the large storage capacity for all my games including Steam library, Origin, and emulators.
Thing I noticed with a standard 7200rpm Sata3 2TB HD is that the games I played regularly were very slow to start up and this SSHD does really help when playing the same game regularly. Keyword is regularly.
Ex: H1Z1 took lest than 30 seconds to load on the SSHD while the the standard drive was over a minute.
Battlefield 4 was more than twice as fast using the SSHD.

Very quiet, don't hear the clicking that others commented on.
Stays cool.

Cons: not 100% solid state but that's the compromise

Other Thoughts: As stated before the solid state part of the drive does not help people that are constantly changing what they are doing, but rather helps when you play a game over and over or accesses a repetitive task on the HD.
I would definitely recommend this drive over a standard HD for performance in general. The cost of 4TB is in solid-state with a good rating is still overpriced for the performance increase.

1 out of 1 people found this review helpful. Did you? Yes No

3 out of 5 eggsMarketed towards a main HDD for gaming, but only really good for offline storage

This review is from: Seagate Desktop SSHD ST4000DX001 4TB 64MB Cache SATA 6.0Gb/s 3.5" Solid State Hybrid Drive Bare Drive

Pros: Quiet
64MB Cache
5-year warranty
Faster than a HDD

Cons: Only 8GB SSD
High failure rate (It's a Seagate)
Slower than a SSD

Other Thoughts: It's good secondary/storage drive for a PC with a primary SSD.

This drive is not fast enough to replace my main SSD drive. It works well for my huge steam game collection, which has always been stored on a large secondary drive in my gaming PC.

Biggest con is that It's a Seagate. For anyone in the PC repair industry, they know it'll fail in short order. Their customer service is horrid, and not worth dealing with. Many times I've RMA'd a drive, just to get a dead one back in return. I'm only going to use this for offline storage, because I've been burned too many times with Seagate drives failing in the past. If you read the reviews, you'll see these have an extremely high failure rate, which is worrisome.

1 out of 3 people found this review helpful. Did you? Yes No

2 out of 5 eggsNot a good solution for any usage

This review is from: Seagate Desktop SSHD ST4000DX001 4TB 64MB Cache SATA 6.0Gb/s 3.5" Solid State Hybrid Drive Bare Drive

Pros: This drive operated correctly the entire time I was testing it. It is insanely quiet and didn't produce much heat at all. Overall it seemed like a decent quality drive.
During a 5-pass, 2GB read and write test it got 165.5MB/s average read speed and 164.4MB/s average write speed.
For 4KB random IO it got 1.122MB/s average read and 4.953 MB/s average write.
I think the artificially high write speed was due to the hybrid nature of the drive. The data was likely written to the onboard SSD portion first then moved to the main platters. Also, it has an ultra fast 64MB write buffer, which helps immensely.
Overall, the speeds are extremely impressive for a 5900RPM drive.
This drive has an amazing 5 year warranty, which is good because a huge portion of customers report it breaking within that time period.

Cons: Right out of the box the drive's SMART chip reported 4 reboots and less than one hour of total operation. It still somehow managed to rack up a hex misread "rate" of 12F60 (77664 in decimal) and a seek error rate of 9A3B (39,483 in decimal). How this left the factory that way and passed quality control is beyond me but the last 30 or so modern Seagate drives I ordered all had seek errors and misreads over time, though only 1 of them actually failed. So maybe that's just a natural part of how they work and it isn't indicative of failure.
After writing and reading approximately 40 GB of data to the drive, the misread rate hit 18F8538 (26182968 in decimal) but the seek errors only increased to DD84 (56,708 in decimal).
Overall I would definitely not want to use a brand new drive that constantly misread and had seek errors. To me that indicated a failing hard drive head, warped platter, or other mechanical issue. It sounds like these drives have an awful reputation for failure as well so it's definitely making me nervous.
Another huge drawback is the mere 8GB of NAND flash that makes this a hybrid drive. It's a nice write buffer and the speed test indicates it made a huge difference but over 80% of what the typical user does in a day is reading so it's not that important. Seagate hybrid drives are supposed to use Adaptive Memory technology to identify the most frequently-used data and stores it in the NAND flash to be read faster. With 8GB it wouldn't even fit common windows files let alone 1 single game's texture, sound, or video data and I assume some of the 8GB is allocated for write buffering so it can't even use the entire 8GB.
Also, flash chips can only be written to a certain amount of time before failing. On a 256GB SSD this is less of a problem but with 8GB or less of flash constantly being written to, even if they use enterprise-grade chips, my calculations put it at barely lasting a year under average use.
The #1 worst part of this drive besides its apparent failure rate is that Seagate's own specs state that this drive should be expected to read at 146MB/s and data stored in the NAND flash section can be read at 190MB/s. That's barely an increase! Plus, modern SATA SSDs can read at 550MB/s easily.
There are 4 platters and 8 total heads in this very large, thick drive, making it much likely that something might go wrong compared to smaller drives. It also uses 7.5W, which is 1.6W more than its 1TB version, and has a worse average seek time.

Other Thoughts: Having a hybrid drive is nearly pointless as a secondary storage drive and this model isn't fast enough to be a main system drive for Windows. Add the failure rates and misreads and chance for the MLC flash chips to fail and there is simply no use for this drive. It's just a bad product and any customer would be better off with a simple, non-hybrid drive for storage or an actual SSD for the main, OS-booting drive.

Manufacturer Response:

Dear Anonymous,

We wanted to note that some S.M.A.R.T. values on our drives are RAW values, which means that they contain more information that just an incremental count of events. This additional information could be the number of seconds, minutes, or hours since the last event, or it could contain an identifier of the current state in combination with the direct count of occurrences. Please use SeaTools to verify the health of your drive. SeaTools knows how to interpret these values to determine if there is a problem with the drive.

http://goo.gl/R9KKh4

The NAND Flash on our SSHD drives is not used as a cache to transfer data. NAND Flash makes a copy of the most commonly used sectors. When a file is requested, the drive checks the NAND Flash to see if the data exists, then verifies if it matches the platters. If the data matches, then the data is read from the NAND Flash, otherwise it reads from the platters. The data in NAND Flash does not change every time a file is accessed.

If you have additional questions or concerns, please contact our support staff directly and we will be happy to assist further:

http://support2.seagate.com/

Best Regards,
Seagate Support

1 out of 1 people found this review helpful. Did you? Yes No

4 out of 5 eggsNice price for 4 TB

This review is from: Seagate Desktop SSHD ST4000DX001 4TB 64MB Cache SATA 6.0Gb/s 3.5" Solid State Hybrid Drive Bare Drive

Pros: Faster than most HHD due to 8GB SSD for cache
Working flawlessly with zero issues

Cons: None that I have found yet.

Other Thoughts: Used this drive to dual boot Windows 10 and Ubuntu Mate 16.04. Split the drive into two 1.8 TB partitions with the first partition being Windows. The item came as a bare drive wrapped in bubble wrap specifically for a hard drive, with no retail box or accessories.

Testing the disk speeds in Linux using the hdparm command output 145.12 MB/s read speeds. Using the DD command to test write speeds when writing a 1 GB test file resulted in 128 MB/s.

When comparing this disk to my Western Digital 1TB drive, it is definitely faster, but not nearly as fast as my Samsung SSD. My SSD boots using UEFI in less than 5 seconds, this Seagate SSHD boots in 10-15 seconds.These drives aren't typically used for a boot drive, they are for data storage though and I plan on using the drive in my Seagate BlackArmor NAS for media storage.

The drive itself is 7200 rpm, but caches frequently used data to the 8 GB NAND flash chip for faster access. Over time this drive learns what files are accessed the most and moves those to the NAND flash.

So far, I have not encountered any problems with the drive, I have been using the drive for two weeks now and have not noticed any issues.

I do not recommend using this drive for a boot drive. It is intended for storage with quicker access to often used programs and files. The unusually high failure rate can most probably be attributed to folks using this drive improperly.

I recommend this drive if you need expanded storage and better performance than a standard HDD.

1 out of 1 people found this review helpful. Did you? Yes No

4 out of 5 eggsGreat Storage Drive but Not a Replacement for a SSD

This review is from: Seagate Desktop SSHD ST4000DX001 4TB 64MB Cache SATA 6.0Gb/s 3.5" Solid State Hybrid Drive Bare Drive

Pros: -64 MB Cache with 8 GB of Solid State Storage managed by the hard drive's firmware.
-4 TB of total storage with 3.63 TB of actual storage use.
-5 year warranty compared 2 years offered by WD.
-Great alternative if on a budget or looking for a single drive solution with massive storage space
-Out performs traditional drives in OS boot time, real word differences of a few seconds under Windows 10.
-Great storage or secondary drive solution when paired with a SSD main drive.

Cons: -I would still recommend a SSD for your primary OS drive if budget allows.

Other Thoughts: -Jury is out on reliability. This is my first hybrid drive I've tested or used. I've only had the drive for a month now and haven't experienced any problem at all but only time will tell.

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4 out of 5 eggsWorks, but I'm skeptical

This review is from: Seagate Desktop SSHD ST4000DX001 4TB 64MB Cache SATA 6.0Gb/s 3.5" Solid State Hybrid Drive Bare Drive

Pros: - 4 TB of space
- Solid construction
- Quick speeds

Cons: - Lots of anecdotal evidence that the drives have a high failure rate.
- Solid state hybrid drives are a bit misleading.

Other Thoughts: I would like to note I've only had this drive for a month, so it's hard to judge its failure rate. That being said, it wasn't DOA, it passed all scans, and it has been performing well as a media storage/backup drive.

You can't ignore the load of reviews saying they have had high failure rates. You just can't. I haven't had any of the problems described thus far, and so far I have really enjoyed the space and speed of the drive. In crystal disk mark I was hitting the ~100MB/s range.

Installation was easy, the same as any standard desktop drive. I had to use the GPT scheme to get it to read the full 4TB, but afterwards it formatted and passed seagate tool scans without issue.

I don't buy into the whole solid state hybrid marketing. Drives already have a much faster cache. Supposedly this would load your frequent files into the SSD cache, but I really never noticed any huge spikes in speed. If you want a fast OS, pick up a 128GB SSD for cheap and use this to store stuff like games and movies.

I used this to backup my downloaded media, such as movies and tv shows, and also used it to backup other data from my network into my home server. It seems to be working well, but I am cautious about its reliability. Time will tell.

I always think a best practice is to buy 2 of any drive and mirror them, just in case. If you are using this as a backup drive in something like a Synology NAS, you will have a great time, provided your drive arrives in a working order. Recommended, but not for the Hybrid aspect of it, that's just a marketing gimmick on a storage drive such as this.

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5 out of 5 eggsWorks great and is much faster than my previous drive.

This review is from: Seagate Desktop SSHD ST4000DX001 4TB 64MB Cache SATA 6.0Gb/s 3.5" Solid State Hybrid Drive Bare Drive

Pros: This drive is much faster than my previous Western Digital 1TB 7200RPM SATA drive. I saw the negative reviews, but this drive has worked well for me. I have only had it for a short time, but it's quiet and fast. I am very happy with this drive so far. I have Ubuntu installed on this drive and the boot speed is incredible compared to what it used to be. Within seconds I am ready to go.

Cons: I see no cons. It's much faster than your standard hard drives.

Other Thoughts: Given the mixed reviews, I am still cautious about this drive. I always keep my data backed up, so if it fails, it won't be a huge deal for me. It might last forever... who knows. Maybe a few bad drives don't mean that all of them will be troublesome.

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Item#: N82E16822178379
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