Cons: - When I purchased this drive, it was not labeled as an SMR drive. I replaced some conventional drives with two of these drives about 6 months ago. It took a LONG time to rebuild the array, which seemed normal enough and I was glad to have the extra space. However, it has been an incredibly slow drive ever since as I have a lot of large files that take forever to sync between by two NAS's. - Because of the slow speed of the shingled magnetic recording, the syncing seems to timeout, then it loses track of changes and I end up with duplicate files. I have done everything I can to troubleshoot this and have come to the conclusion that the only thing it can be is the drive itself. - There is currently a class action lawsuit against WD for the misrepresentation of these drives as suitable for use in NAS's. - Don't buy if you want to use in any kind of critical or responsive system.

Overall Review: Would not recommend.