If you are only connecting (2) PCs together and no more, you can use a cross-over cable. It looks very close to a CAT5 cable (Ethernet). All you have to do is plug each ends into the (2) PCs. Then, just run through the Network Setup Wizard, and volia! Although, you won't have any internet access (since each PC only has (1) card). If you want internet access as well, I suggest a Linksys router.