HGST Ultrastar 7K4000 HUS724040ALE640 (0F14683) 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5″ Internal Enterprise Hard Drive Bare Drive

Pros: These are Ultrastar drives with which I have had very good experience with – Long MTBF. Never had a failure on a handful of drives – many with over 40,000 hours.

Cons: This drives were not flagged as being used or refurbished by Newegg.
The drive I received had at least 12,400 hours on it based on SMART statistics.

Overall Review: Good drives, but be warned, these are not new.

Pros: large, fast enough. very useful for large files/projects.

Cons: Runs hot. I have few hitachi hdd fail because of overheat, but there’s no other brand 4TB yet, so I have to buy another one hitachi 4TB just for simple back-up.

Overall Review: hope this drive really will work this time. for $520 it will be a big loss not to mention loss of data.

Pros: 6 out of 6 drives passed a full 3-pass write/verify certification of all sectors with 0 errors. (Compare to the WD Reds I’ve used, where about 1 in 3 fail.)

Performance is good; basically in line with a 7200RPM 4TB drive. In other words, a nice bump up from the 5400 or 5900 RPM NAS drives from other manufacturers, but not hugely so.

Cons: none so far

Overall Review: For the absolute least expensive NAS storage, go with WD Red, test thoroughly, and be prepared to deal with the delays and shipping expense of warranty replacements. Or spend ~50% more and get these drives knowing they’ll probably all work. It’s actually an interesting trade-off, because no matter what drive I buy, I’m going to test them all regardless. Anyway, my opinion is that these drives are reasonably priced for a high quality drive, and that I won’t pay for more expensive brands.

I suspect that the higher initial reliability of the HGST drives is an indicator of quality that will also result in fewer failures in operation and longer average service life. But I won’t actually know that for a few years, at which point the knowledge will be worthless…

Pros: I’m using these in a NAS system in a mirrored array and the write speeds are quite good. Solid, error-free performance. Very little internal temperature variance.

Cons: None so far.

Overall Review: I used to swear by the IBM Deskstar drives until the infamous “DeathScratch” quality issues made them unreliable back in the early 2000’s. When Hitachi took over the line, I still didn’t trust them. Recently the word on the street has been that these drives were very reliable and so I bought two for a mirrored array and they are beating the pants off my Seagate, WD Red and Samsung drives. The write times to the mirror are as fast as the read times on the other drives.

Time will tell as far as the reliability goes. They are in a mirror so as long as they don’t fail simultaneously, I’m not too worried.

I read someone’s review saying they bought these drives and the SMART tests indicated the drives were used. I was slightly concerned. Mine came from goHardDrive and the SMART tests verified they were new. After initializing the drives and then loading them to near capacity ( about a 3 day process of continuous writing), there were zero errors and temps were 30 degrees C +/- 1 degree the entire run. I’m very pleased.

Pros: Bought 3 drives. Good price. Quick test showed no errors. Performance is within expectation (100-150MB/s). I heard those drives are super reliable.

Cons: Those are not new drives as I thought. Manufactured in late 2014 or early 2015. Each one of them has 22,000 hours based on SMART information.

Overall Review: Let’s see if they can last a few more years.

Pros: No SMART errors, arrived well packed, quiet, fast (for a mechanical hard drive), appears to have good build quality, made in Thailand not China, enterprise grade, high MTBF, Hitachi Deskstar and Ultrastar drives have very low failure rates that tend to be around 1% according to the Backblaze data center study on 27,000 mechanical hard drives of various brands

Cons: very expensive (but you get what you pay for I suppose)

Overall Review: I’ve had very poor luck with consumer level mechanical hard drives from other brands, so I thought I would step up to something enterprise grade from Hitachi and see if I can actually get a hard drive that lasts. I guess we’ll see…

Pros: 4tb 3.725 usable
Excellent deal
goharddrive Customer service Quickly replies and Helpful
Ran

Cons: Looks used, (Dust) Minor scratches. But nothing serious
Description doesnt say there a NOS Drive, (New Old Stock)

Overall Review: Ran hd sentinel pro and my drive said 0 hrs,
Theres another review on here saying his had 12k hrs, so Double check ur drives before you decide to keep it.

Pros: Great when it works.

Cons: I’m now getting a SMART error after about a year. When you go to the Hitachi and enter your serial number it tells you that it is not valid. It turns out that they want the last 8 characters and not the complete number given by the SMART info. Why? Just silly and problematic. Support says of course as that is not what is on the label. So they want everyone to take their computers apart just to check the warranty? They could just have the database take the last 8 characters and or put a note about it on the page where you enter in the serial number.

Then the support guy won’t tell me what the SMART error is about saying I must run the WinDFT long scan. He said it would only take a few hours. No it takes like 9-10 on a 4TB drive. Also said that SMART errors don’t mean anything is wrong and that Windows Updates or improper formatting can cause SMART errors. What?

He also so informed me that Hitachi will not cross ship the replacement drive. What?! This is a hard drive not some random piece of equipment. I’ve only had to do this a few times over the years but I have never been told by any manufacture that they will not cross ship. So you are lucky enough to find out the drive is falling before you lose everything while it’s under “Warranty” but you have to find and buy at whatever cost, another 4TB drive to back everything up and then be stuck with another 4TB drive in the end. Really? That’s not much of a warranty and they are really overburdening the customer, just because they don’t want to deal with my credit card info. This should be listed somewhere in all product info and the drive should be like $100 with such a poor warranty you will need to buy two.