Overall Review: I ordered one of these as a replacement drive to upgrade the last 6TB drive in my Synology DS920+. The drive came with a label that looks like it came from Seagate that identifies it as a refurbished drive. After inserting, the S.M.A.R.T. information says the drive has zero (0) hours. I'm guessing mine was a factory refurb and not just a server pull. The array rebuild was a brutal three days, and it now has 180 hours on it and is performing flawlessly with the other three WD Ultrastar drives in the array. I couldn't be happier.