I just ordered a retina iMac, upgrading from a 2013 i7 iMac. On the 2013 I had a 3 TB Fusion Drive. I do a lot of photography, so I decided to upgrade my storage as well with the new machine. I got a 512 GB internal flash, and then I got a Thunderbay IV external enclosure and put 2x 1 TB SSDs in a RAID-0 in it along with two 4 TB HDDs for backup. What I didn't account for in all of this is how LOUD the external enclosure is. I read reviews and they all praised the Thunderbay for being quiet, so maybe I'm just spoiled from having the iMac only before. Even with the Fusion drive (not flash), it was still far, far quieter than the external enclosure. And that's with the enclosure sitting on the ground under my desk. I was even (naively, as it turns out) looking forward to the new setup being quieter because of the flash drive in the retina iMac I ordered. I'm super noise sensitive, so I'm even considering returning everything (or selling what I can't return) and going back to a Fusion iMac without external 4-bay enclosure. I'm also thinking of getting a longer TB cable and putting the enclosure on the other side of the room, but those cables aren't cheap! Is there any way I can dampen the sound of the enclosure with some kind of insulation/foam without obstructing the fan and melting the drives?