Finally, it looks like someone has made exactly what I need. A tray-less 5-bay Thunderbolt JBoD enclosure. Thunderbolt to 5x hot swap SATAIII (6Gb) independent drives It seems this is the only one in the market. It is $469. This seems to be good solution for the JBoD mode, that is what i need for my app I'm curious if anyone has experience with this. Or am I going to have to be the guinea pig?