Pros: - Bought 3 of these refurbished for under $200 each.

Cons: - 2 of the drives initialized to 5.64TB (what you would expect) while the 3rd drive initialized to 5.46TB. All on the same OS. Can't for the life of me figure out why the sector counts are different even thought they are all 4096 byte sectors and the exact same model number. This is a problem since they all went into the same NAS RAID array, I assume I am loosing 200GB on the "larger" drives so they all operate the same.