Hitachi Ultrastar 7K3000 (0F12471) 3TB 64MB Cache 7200RPM SATA III (6.0Gb/s) 3.5in Hard Drive - PC/Mac, ,RAID, NAS, CCTV DVR (Renewed)

I see people raving about 20tb drives all the time, but for me I don't need that much space for my home NAS. IMO these drives fit my use case perfectly. I using 4 in an ancient synology 1u rack, and haven't had any issues. Recently I had a previously purchased used enterprise drive die after 5+ years of continual use, so I picked up another set. Just like the last ones I purchased this one had a few hours of use, but no bad sectors or any other issues according to S.M.A.R.T.. I slapped it in, let the NAS do its thing, and I was back to business.

Security Dvr, formatted & works great, 3 TB & great price. Mahalo!

I paid for them, they showed up in good shape. They installed in my NAS with no issues.

this guy didnt have to help me with an entire replacement. I really really appreciate your love for your business's customers

It worked for a good 2 weeks. Then, 76 bad sectors, infinite read time, and corrupt files. Move on.

Just so everyone knows...If you're buying this to replace an existing external drive use you must have an eSATA connector (image above) and a SATA controller which is pretty much all that's use these days. But there is a bit of confusion about internal vs external SATA. The eSATA connection is supposedly only for external drives to get better speeds it uses shielding. eSATA is not interchangible with a SATA cable. If you want to understand you can read up on the different versions of SATA which I believe 6.0 is the latest but they will only transfer data as fast as the slowest part be that the drive, controller or connection.There are different ways to connect to your PC using USB 2.0 or 3.0 or what may look like a VGA (9-pin). But on the drive enclosure it will most likely be an eSATA connection.If you don't have this minimal setup you will not see the entire 3TB and all the changes in the world won't help you. A SATA plug has a 2 higher sides with a dip in the middle .I did a lot of asking when I had problems and I was told I needed a USB 3.0 connection this is not true but even the sellers don't understand that eSATA is the minimum requirement.You may need a 64 bit version of your OS to address 3tb's I'd have to fugure out how much address space a 64 bit OS has to anser for sure.Some sane you need to have the disk initialized as a GPT others sat0y they are still using MBR. GPT also requires UEFI from what I've heard I can't say. The real problem here is that many people are still using 32 bit Windows 7 with external drives that aren't SATA and it's creating a lot of confusion because of the older hardware using PATA which won't work with this drive no matter what you try to do. Your only option is an upgraded external SATA controller. You nay not even be able to find smaller drives that still support PATA. I just don't know if they are still available.Anyway, I hope this helps people scratching their heads to get some clarity.

Bought this hdd for a gaming pc build to supplement the SSD that has my OS. It’s been 4 months and no complaints so far. It’s noisy but I expected that to be a trade off for the low price of the drive. It’s a risk to buy something refurbished but I got lucky with this one. For the cost to capacity, I’d say it’s worth the risk.

It is fast and quiet, very cheap and easy to install. I used it as my backup storage.