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I would get the $49 Belkin USB 3.0 Hub as I have always had good luck with Belkin in the past and don't really know Kanex. I too looked at that hub at OWC. They say it is very reliable (low return rate) and I believe it does have a cord that folds to it for attaching to the computer, but given that I think it is more suited for a notebook, to be portable. You may not have the length of cable you want once plugged into an iMac to put it where you want on a desk or hidden in a cabinet. And for a hub, I would go for the black Belkin over the white Kanex. My $.02.
 
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