I have a MacBook Pro 2.3GHz Quad-core Intel i7 from June 2012. NVIDIA GeForce GT 650M with 512MB of GDDR5 memory This is exactly what I'm trying to do. I have 2 22" inch monitors that are VGA and DVI. My third monitor is HDMI and VGA. What I would like to do is be able to switch all the displays from my desktop tower to my Macbook Pro via a "switch hub" when I want to work on my Mac. I don't know if this is possible, but I thought I'd try and ask.