I don't need anything super fancy like a $600 Synology 4-bay NAS or a DIY PC running ZFS. I just want a decent USB 3.0 one- or two-bay external drive enclosure that won't kill the drive by not having a fan, purely for backup use. The external enclosures that come with external drives are scary and have no fans, no feet and just a few pinholes on the bottom for air circulation, and have already killed one drive in my experience.