What in the post led you to believe that I somehow thought the ethernet and wireless cards were connected? A statement was made that the MacBook has no PCI slots - that is not the case. Do I think that the PCI (PCI Express to be exact) slot could be used to put a NIC into the MacBook?, in a word no. The problem with the Mini PCI slot is it has no external access, so if a Mini PCI card was put in, that needed access to the outside of the computer - a problem exists. It could also be that the engineers dedicated that slot for wireless cards only, so a firmware update and drivers would be needed to use the slot for anything else. My intention in posting was to make sure no misinformation was given. If someone says that there are no Personal Computer Interface slots in the MacBook, that is not strictly true - there is one, albeit not the standard desktop type. No attack nor meaning to attack a posting was made, rather just an attempt to pass on some information. I surely do not know everything, but I am in a constant quest for information.