WD Gold 12TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD121KRYZ

Pros: -Takes maybe 6 seconds to spin up when it's been idle, great read/write speed (~100mb/s extracting a giant zip archive from a separate SSD) -Makes the dying cow noise when your PC shuts off which I find amusing

Cons: -Not extremely loud as some people say, however if you're doing hardcore reading/writing you can't ignore it. But aside from specifically operating on large/many files your PC is generally not making the drive work 24/7 so it'll be tiny muffled ticks that almost blend in with your case fans. I personally am not bothered at all by any of the sound this drive makes.

Overall Review: My case is on a wood base which rests on a carpet, I imagine that absorbs/muffles a lot of the vibration and ticking. If your case was resting on a non-carpeted floor or desk, hardcore file operations would probably be louder.

Pros: Sustained 100+ MB/sec real world transfer speeds to and from this drive.

Cons: Premium price

Overall Review: I bought this hoping that it will have better reliability than desktop class drives. Time will tell.

Pros: Cavernous and speedy 6Tb drive 5 yr warranty Pretty quiet

Cons: None for now

Overall Review: Bought as a replacement for 3 HDDs on my desktop, one of them being over 10 years old. Reinstalled system on a SSD and all data is stored on this drive. No problem during installation. Data transfers were as fast as could be expected of a good mechanical drive. Specs and warranty are about the same as WD Black and cost me less. If it's built for servers why not use it as a data disk on desktop I wondered. Up to now it does a very good job. Opening and saving files is fast. Exactly what I was looking for.

Pros: Got this at a steal of a price ($80)! Runs just as quiet as any other drives I've used and has been incredibly reliable.

Cons: none yet

Overall Review: I bought this on a whim to test out its functionality in a gaming rig and I'm upset I didn't grab a few more for that rig and my workstation.

Pros: I bought this for my media center (TV tuner card can record 4 high def shows at once). Data transfer to replace my old drive (I needed more room) was fast and the drive is quiet. This seems like a great fit for my needs.

Cons: None so far. Only had it for a day, but it's not DOA. If I don't write a review now, I'll forget later.

Overall Review: Seems like a great drive for the price.

Pros: Lots of room, fast and pretty quiet.

Cons: Expensive

Overall Review: Bought for my file server. Will buy more as the need arises.

Pros: - This is a very high quality HDD. - It offers more cache than the WD Blue or WD Black drives. I usually go with WD Black in my builds, but I decided to give this drive a try with my most recent build. So far, I like it. - This drive should offer higher reliability (MTBF) than WD Blue or WD Black drives. - It is completely silent when mounted in a drive cage with rubber bushings (Fractal Meshify C). - There were no issues in terms of being recognized by my Asrock Z370 Extreme4 motherboard. - I bought this drive because I wanted a highly reliable and responsive storage HDD for my personal computer. I do play games, but I also do actual work with my computer (MATLAB, GUROBI, Mathematica, etc) and I typically keep these programs and the files they use on my storage drive. This drive appears to be performing quite well for those purposes.

Cons: - You obviously won't get SSD levels of performance with this drive, but among standard HDD's the performance is top notch. - It is a lot more expensive than the WD Blue class, and a little more than a Black class drive. - The 2TB model offers much better overall value. If you are willing to spend a bit more, I would just go with the 2TB version.

Pros: The drive is fast and quiet. 256MB cache. Cost isn't bad.

Cons: None so far.

Overall Review: I've had WD REs before. Over a period of 7 years, 2 of them went belly up on me. I went with the new Gold this time. Excellent results (so far). It's still new. But DriveDx showed 0 hours and 100% health.