Hello, I am looking for a way to expand a mid-2011 iMac with SSD without opening it. SSD will contain OS X and all applications, while internal spinner will contain most of the data. I am looking for an external enclosure. I would like not to waste any of the precious three USB slots, so it needs to either use Thunderbolt or provide a hub with additional USB 3.0 ports. Moreover, this is a present for my fiance, who is... not technical. So any superfluous steps like choosing a startup drive, or even flipping the switch on/off should ideally be removed. It should be on the It Just Works (TM) side of things. The best solution I found so far is the all-in-one Inateck hub. It features three USB slots while occupying two. It has an on-off button. (What would happen if I don't switch it off seeing as it's USB powered?) The additional USB slots would be more than welcome but if I can get a Thunderbolt solution that doesn't occupy any of the existing ones it's OK. The Inateck is 26 UK pounds (35 euro), and I'd like to spend no more than, say, 75 euro on the perfect solution. Has anybody else done this? What would be the best way to go about it? Thanks a lot in advance!