4TB Deskstar Coolspin 3.5" SATA III Internal Desktop Hard Drive is rated 4.7 out of 5 by 119 .

Rated 5 out of 5 by Milkman from Works great with Synology 1513+ I've bought 5 drives with my new Synology 1513+ and I couldn't be happier.The system is online for 3 weeks and performance of the drives is fantastic.The fact the HGST offers 3 years warranty plus the price point compared to the Seagate 4TB option was the determinant factor for choosing the HGST.When compared to the 4TB 7.2K RPM Deskstar option, for my use case the Coolspin are performing well above my expectations. The 5.9K drive is a good compromise, at the time of my purchase the... premium for the 7.2K per disk was too steep.If you have a Synology these drives will fit the bill and perform really well.

Rated 5 out of 5 by T.B. from Reliable IMO and based on available industry data, the only affordable quiet reliable storage currently available (HGST). Anecdotal personal experience: No DOAs (0 out of 9), no issues. As long as China's anti-monopoly regulators (yes, China's; sad, really...) keep prohibiting WD from consolidating HGST's production lines with their (lower quality) WD lines, these can't be beat for reliability. These are lower RPM HDDs: great for pictures and videos. Always buy retail boxed versions of HDDs if you value reliability (which you obviously do if you are buying these over cheaper HDDs). These also excell at multiple-HDD installations such as media servers, NAS, etc.

Rated 2 out of 5 by gattaca from Drive goes offline under substained I/O Installed drive in a freshly formatted Win 7 64 bit Pro system with all updated drivers and firmware. Drive consistently fails and goes offline after a couple minutes of substained I/O such as converting a movie to MP4 etc... Shutting down the machine and powering off and on, the drive returns to the system. Am running Intel RST at latest levels in a nonRAID simple SATA setup. I am returning the drive to be replaced as this is not normal behavior. I've not seen this with any other smaller 1 and 2 TB Hitachi drives...even installed in the machine or slots.

Rated 3 out of 5 by ArchFotos from ok for now??? I doubt I can offer any true insights into this particular hard drive. I got it to replace a failed WD green drive that was only three years old so hopefully this hd last longer than three years. Of course by then a new version will be out and buyers will have no true insight. The one comment I can make is 4TB is huge when you start putting projects on it. In that I have so many varied projects on it should it fail and I need to copy the backup files to a new drive to continue with a redundant copy it's going to be a big job. Making the 4TB kind of a mix blessing. I do like the size but I would rather like the security of longevity with my archived files.

Rated 4 out of 5 by Ron B from Good Storage Drive These are good hard drives for bulk digital storage. Not the fastest, but they run cool and are pretty durable. I have a couple of these drives and they are working fine.I deducted one star because this particular drive was hard to set up with a GPT partition via Windows 7 Disk Management, I had no problems doing that with the other drive I got here, not sure what's going on there. The HGST GPT Disk Manager is a little rough around the edges.Other than that, these are good drives and a good value. Unlike other well known online tech vendors, B&H does a good job of packing these sensitive components so they arrive undamaged.

Rated 5 out of 5 by Awesome Andrew from These are QUALITY drives Purchased 5 for my Synology DS1813+ NAS and they're very much at home there, working perfectly. I can't wait to get 3 more. The drives are not the 'coolest' operating temps I've seen but that's probably due to the 4 (?) platters inside, with that in consideration they run quite cool still.They are easily the quietest drives I've ever owned, making other drives I thought were quiet sound particularly loud now.Unlike some, speed hasn't been an issue for me.They ooze quality, I have a new favourite brand HDD. Early days yet, so I'll come back in 6 months time and update.

Rated 5 out of 5 by Richard from So far so good - - - I had some worries about a drive of this size under Windoze 7 - my 2TB drive incurred a significant delay each time I selected that drive. The Deskstar is a bit faster (access time) than that (WD) drive. But what would happen to the time to show a directory? Fortunately it's only a bit slower to show files. There may be a workaround for Windows (I have added the key directories to the search path) but my fear was not realized. So far I'm pleased with the drive (and the cost per GB). Too early to say anything about reliability, etc.