I just bought 10 32GB sticks for $30. And I think it was a good deal. 64GB, 10 for $40. When something is less than 1/3 of a good price, it’s likely a fake. My other thought is that it’s 2.0 speed. And would take nearly 2 hours to transfer 64GB.

I’d recommend a look at r/Synology . My only regret is that I spent time with other devices and external multibay drive enclosures before going with it. I use it for a number of different things including a Plex server and backup for computers and phones. I’m happy with it, and prefer to avoid the tinkering aspect of DIY.