I just picked up a new 27" iMac last month. (Apple - 27" iMac® with Retina 5K display (Latest Model) - Intel Core i7 (3.8GHz) - 8GB Memory - 512GB SSD - Silver) I'm looking for a dock that will help me connect two more monitors. I got a Kensington dock on Amazon but I'm going to have to return it because the iMac won't recognize it. Most of the docks I've found will work with laptops, but I'm struggling to find something that will definitely work with my new 27" iMac. Help!