MDD (MD16TSATA25672NAS) 16TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch NAS Hard Drive – 5 Years Warranty (Renewed)

Skeptical at first, but so far so good !
Like most people looking a this drive i felt a bit uneasy purchasing from a new retailer for an almost bargain basement price, but with HDD prices so high no i way i was paying almost double for the same thing so i took the plunge and bought three for my ZFS home NAS setup. The data is backed up so i could take the chance plus 5 year warranty was reassuring. Here’s my initial observations1) You can tell these are SEAGATE EXOS just from the profile and how the drives look , there’s only three HDD FABS in the world ( Seagate , Western Digitial , and Toshiba ) so these are possibly bought bulk and re-labeled , im cool with that if i can ultimately save money !2) Upon unboxing, there were some visible scratches where the label was no big deal , these are sold as “new” which could be true or could not be who knows, but hey at least there’s 5 year warranty!3) Even though this came in a static bag , there was a small piece of Styrofoam in the drive port that didnt look like it belonged there4) being the nerd i am i used bad sector test before putting data on it and all three turned out clean5) Firmware in SMART shows as generic so these are certainly re flashed custom firmware. SMART seems to work fine and report the usual interesting attributes such as temp, relocated sectors, errors etc.6) I did not experience any loud noise like rain as some other users did7) the drives are fairly fast, they show up as 14.6TB usable and SATA 6.0 i was able to bench 250+ MB/sIll keep testing but so far i am a happy camper. No reason at this point to give less than five stars, and i let them burn in for a bit and purchase more, so far so very happy!

Good drive from a great seller!
If you are on the fence about a refurb drive, know that even brand new drives can and do fail. I bought this drive because of the warranty and more importantly the seller’s integrity. I also bought a 14TB drive from this seller a little over 2 years ago that failed. The warranty process was quick and easy. In less than a week I had a new drive. Nice!!

One of two are solid drives, but they are still Seagate.
The two drives that I ordered arrived well packed and were delivered a couple days early. Initial SMART data showed they have never been used. Indeed they came with a card and invoice both stating a 5-year warranty from the date of purchase. (UPDATE: The vendor resets the SMART data, and does so again when a drive is returned for replacement, NOT GOOD. So changed from 5 stars to one, for terrible warranty ‘support’).I’ve had these for less than a week, but no SMART issues after using.badblocks -wsv -b8192…and letting it write the entire 16TB to the drives once. I then loaded them with some archival backups (that will be periodically updated) with no issues.Badblocks had an average write speed of about 229MB/s for one and 220MB/s for the other. These appear to be rebranded out of spec EXOS drives and work fine in a ventilated external enclosure with an ASMEDIA USB 3.1 chipset which allows Linux to read the SMART data. The drives did reach 109F, which feels warm to the touch but not hot. This is actually pretty good considering they were being written to at full speed for 18 hours straight, and the room was around 78F. They were however on top of a laptop cooler pushing some airflow through the vents in the external enclosures.UPDATE/EDIT: Would NOT buy again, as one of the two causes computer lockups and the number of bad sectors keeps going up. To add insult to injury the vendor reset the SMART data and returned the exact same drive to me. So no surprise that the drive is doing act 1, scene 2 with the freezing and bad sector proliferation.

great price, works great
great price per gig, works great. good brand. i have 3 enterprise gold versions and one of these green/blue nas versions. i think i have had them for about 2 years now, never had any issues. they are chuggin away in my synology.