Ok perks i got it, but here is my experience, i work in the oilfield and my nature of work keeps me on the move 24/7, so the best thing to keep my alive, is 3G broadbands cards, now the weird thing is, all apple PCs i mean notebooks in this case, DOES NOT ACCEPT THIS WAY OF COMMUNICATION via USB!! my work related toshiba LT accept it with no problems at all, in one of my business trips to saudi arabia, i got one of these cards 3G broadbands but is was via USB, my toshiba accepted it happily, but my MBP did not recognize it at all, tried so many ways but no luck at all !! bottom line is MBP will not accept any kind of networking via USB, so i think you have to try some other way or like i told you b4, try express card slot. If any one out there have a better experience, please share it with us. Thanks