MaxDigital 4TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5inch Internal Desktop Hard Drive - 2 Year Warranty (Renewed)

I wanted a little extra storage for surveillance cameras and this worked perfectly fine. No issues and a great value.

As others have said these are rebranded Hitachi drives, and someone noted that the Power On Hours are 0, but it is very easy to reset that (I accidently did on one of my other drives). The giveaway that these are used is that you cannot reset the Self Test section which shows they did a "Short Self Test" at 19719 Power On Hours (before resetting it to 0, because if they reset it first it would be more convincing and say 1 Power On Hour).Honestly I would have preferred id MDD had just admitted these are used, and not reset the stats. Now I have no idea how many Load Cycles where were and how many more there can be. The price is the same as a used drive of the same model, so I don't understand the need for the deception.I gave it 4 stars still because it does pass an extended surface test, but may need to come back in the future to lower it if the drive fails because of Load Cycles, which is really what I think they are trying to hide.

Good drive

Very happy with this purchase!

So like a lot of you I was questioning just what the deal was? 4tb for under 70 bucks? Well, My experience so far is this...Drive came like most OEM drives, cardboard box, spacers to keep it steady. All good their. Using mine as backup drive, through a usb 3.0 enlosure. First thing I noticed is thing is LOUD. I knew for an enterprise drive it was going to be a little louder as it was running at 7200 but still, its very noticeable. Now granted, mine was in an exposed enclosure less than 2 feet away from me, but I'd imagine even in you put this in a full case setup you'd be able to hear it. Also, spindle start up time is pretty slow.I ran crystaldisk and HDTune. I apparently have the HP drive. It didn't have any hours on the firmware, but there WAS a volume on the drive already. Win10 wouldn't let me format without deleting that volume first so I'm assuming it was RAW format. Formatted fine to 3.7ish TB. Quick scans of the drive all came out good, no smart errors reported right away.Went ahead and did a drive copy of my 2tb firecuda (5400rpm, roughly 1tb filled) to the drive through EaseUS, under the "normal" compression setting (not sector for sector) it took roughly 6 hours on a ryzen 5 3600, with 32gb of ram. Now, bearing in mind that I don't have anything to really compare that time too, it seems logical considering my firecuda is 5400 rpm drive, and i'm sending those files over usb 3.0 to a 7200 rpm drive. The firecuda drive holds a multitude of file types and sizes as well. Now only doing incremental / mirroring backups will help drastically with that time, but still something to keep in your thoughts if your planning on using it like me, in an external / backup use. During the backup the drive never went over 50c temp wise.So, so far so good. The drive is not something I would use as a regular storage drive unless your using it for streaming media storage or something like that, definitely not something your going to need to get fast access to files on.Will update here in a few weeks After a couple more backups to see if anything changes.

The price for a 4TB 7200RPM drive is really good. There appear to be tradeoffs... the drive pretty obviously is a remanufactured or refurbished drive, since the label on it is an ad hoc glued on not well integrated thing that looks nothing like an HGST, Hitachi, WD, etc drive's label that is applied quite smoothly. I'd really like to know the REAL manufacturing date but apparently it's lost to the mists of the refurbisher... In operation it gets fairly warm, and oh, boy is it loud. I'm using mine in an external USB SATA dock as a less expensive external hard drive... every disk seek is clunky. All I got it for is offline storage of a bunch of backup files and for that purpose it's perfect.

Drive is supposedly brand new with 0 run time.Drive started clicking the first time I plugged it in and powered on the machine.It also seems to take an extremely long time to transfer data onto it and you can hear it clicking the entire time.Kinda disappointed. Will have to see if they will send me another 'brand new' drive and if it does the same thing.

I bought 2 drives for my Qnap NAS, the drives read as Toshiba MG03ACA400 4TB drives so not the Hitachi like some others are reporting. Still these are good performing drives and for now appear to be working well. These are a great value for the money. My one knock is the grind/work noise (thought to some may not be a big deal especially if you have these in a server room) I have these in my NAS that is in my home office and they are loud enough to be noticed (they are about 2 feet from my desk on the floor that may make the noise louder) I only have 2 drives I imagine if I had 4 or even 8 it would be quite annoying in a small office. The 2TB WD Red NAS drives drives i had in previously where whisper quiet in comparison, but to be fair those drives cost 30% more than these in a 4TB version so the complaint is a minor irritation. I hope these last me well into a my 4 year cycle and I have nothing negative to update in the future.