I saw that these were on sale and have been searching all over to find out what drives are in these. All I've seen is reports (at least as recent as 3 months ago) is that they are Barracuda Pro drives in them. I haven't found anyone reporting Ironwolf Pros or EXOS drives in them. (not that I've seen every single report ever, mind you) Do you know of any sources confirming they have switched over? If I knew for sure they were, I'd grab two for my backup NAS but I'm not interested in Barracuda Pro drives.