Performance:very goodBest Feature:very goodValue For Money:very goodwell packaged. Will order again

Great

-buy newegg warranty for peace of mind. -I have other W.D. drives that just wont give up, they have continuous high read/writes with no errors. Samsung, Seagate, are no match, so far being the worst drives I still own with low read/writes during period of use longer than 5 minutes. I find that odd. -BackBlaze website labels Toshiba and Seagate as the worst reliable drives with Western Digital being 2nd most reliable and HGST being the most reliable. Thou I don't like the HGST reviews newegg has so I went with W.D. and will continue to replace all my current HDDs with W.D. as soon as I can afford it.

Quality Hard Drive

-I'm not a super hard drive geek. I know latency, disk width, disk density, and other HDD terms but consider myself a regular HDD user..which is just to store data. I don't time them at all to the m/s...to me, the HDD is either fast or slow. Just remember that this hard drive is specifically designed for Surveillance systems which means it writes at just the right speed of 5900RPM, for long periods of time, but if you were storing data on this HDD, then that's where you'll run into issues because it takes more time for it to read. Not an ideal HDD to store small data like pictures and small video clips because it reads slow. But great for surveillance systems for when you're on away for vacation or don't touch the system too often. I did have a chance to test it on ... More-I'm not a super hard drive geek. I know latency, disk width, disk density, and other HDD terms but consider myself a regular HDD user..which is just to store data. I don't time them at all to the m/s...to me, the HDD is either fast or slow. Just remember that this hard drive is specifically designed for Surveillance systems which means it writes at just the right speed of 5900RPM, for long periods of time, but if you were storing data on this HDD, then that's where you'll run into issues because it takes more time for it to read. Not an ideal HDD to store small data like pictures and small video clips because it reads slow. But great for surveillance systems for when you're on away for vacation or don't touch the system too often. I did have a chance to test it on a friend's surveillance system. This system was NOT HD, only 480i. The only issue is that the surveillance system did not support more than 2TB hard drives. We tried to go onto the surveillance systems' website, but no luck with an updated driver. We went ahead and just use the 2TB for testing purposes. Before, it had a Seagate Barracudda 500GB at 7400 RPM. After using it for about 3 days, I did not see any lags at all whether it was playing back or recording multiple channels. We had 6 of the 8 channels hooked up to video cameras all around my friend's house. All recordings came in clear. Despite it running at 5900 RPM, it seems to handle the job quite well. Even though it ran at a lower speed, I did not notice any heat differences inside the case. I did notice that it took maybe a second or two longer for the 4TB HDD to start when it was in idle for more than 1 hour but that was the same case with the other Seagate 500GB HDD as well. I can see how this HDD will save energy in the long run but I'm not an electrician and I don't know how much it's actually saving per hour versus using a regular 7200RPM hard drive. To those looking for a simple answer to their question "does this HDD work for me?" The answer is "YES" it does work. Will it do everything..."NO". It's specially built for Surveillance applications. If you need a 4TB, first find out if the manufacturer of the surveillance supports 4TB. If they do, I'd recommend getting this particular HDD because of the build quality and it's gonna do what it needs to do.

SeaGate Skyhawk hard drive 2gb

It's a hard drive from a reputable company (Seagate) and it went in my Humax 5000 PVR without problems. It formatted easily and appears to be working fine.

So far, pretty great!

I picked up a pair of these to throw in a Synology DiskStation along with one 4TB WD Red drive (picking up another once I spot a good sale) for purposes of testing reliability between the two manufacturers/disk types, putting data that I don't really care that much about, and backing up the stuff I do to Glacier (web backup from that book company named after a rainforest) in case of simultaneous drive failure. After about two months of non stop operation in a SHR (Synology's proprietary RAID format), none of the drives have given me any problems. One of these drives is running at 31C with the other running at 33C. The WD drive is also humming along at 33C, and is adjacent to the 33C WD drive. All that is to say: performance is pretty much the same with no issues to ... MoreI picked up a pair of these to throw in a Synology DiskStation along with one 4TB WD Red drive (picking up another once I spot a good sale) for purposes of testing reliability between the two manufacturers/disk types, putting data that I don't really care that much about, and backing up the stuff I do to Glacier (web backup from that book company named after a rainforest) in case of simultaneous drive failure. After about two months of non stop operation in a SHR (Synology's proprietary RAID format), none of the drives have given me any problems. One of these drives is running at 31C with the other running at 33C. The WD drive is also humming along at 33C, and is adjacent to the 33C WD drive. All that is to say: performance is pretty much the same with no issues to date!

Solid Performer for its Purpose

After running this drive for over two weeks recording four 720p video streams I can say it is awesome for that. Trying to run a system backup on it was a no-go though because of several bad disk sectors. Not a single system backup worked for me. These translated to almost-imperceptible bad pixels/ frames in lengthy surveillance which didn't matter a bit for that. I guess if some guy was robbing you and the moment the gun went off you lost a frame it might matter, but I'm willing to bet those odds. I am thinking about using this drive full time but I think I'll have to do some research into other formatting methods mentioned to see if I can get another one to get two 4TB drives into a RAID 1 just in case whatever caused the bad sectors ends up killing one of the ... MoreAfter running this drive for over two weeks recording four 720p video streams I can say it is awesome for that. Trying to run a system backup on it was a no-go though because of several bad disk sectors. Not a single system backup worked for me. These translated to almost-imperceptible bad pixels/ frames in lengthy surveillance which didn't matter a bit for that. I guess if some guy was robbing you and the moment the gun went off you lost a frame it might matter, but I'm willing to bet those odds. I am thinking about using this drive full time but I think I'll have to do some research into other formatting methods mentioned to see if I can get another one to get two 4TB drives into a RAID 1 just in case whatever caused the bad sectors ends up killing one of the drives, I can still go back in time without losing all that footage. Four HD streams should fill this drive up in about three months and the DVR will then start to write over so I'll always have three months of footage in there from each camera. That's pretty cool! Just don't buy it thinking it is a miracle drive for anything you want to put on it because it has a very specific purpose and for that it rocks.