This laptop has an expresscard slot, and two mini PCI-e slots on the bottom, with a wifi and a cellular modem in each one. i read somewhere you could use a combination of the slots to get better performance out of an egpu, but havent been able to find anything on it. so my questions are as follows, 1. if its possible, what hardware would i need? pe4h or pe4l? and which revision? 2. i need my wifi card, so i can only use two ports for this. can i mix the expresscard and mpci-e, or should i get a wifi card for the expresscard slot and use both mpci-e ports for the egpu? some info for you if it helps dell latitude E6430 i5 3360m with intel HD 4000 8 GB ram windows 7 pro