Sprint released the AirCard 402, a mobile broadband modem that can slip into both PC Card and ExpressCard slots. The AirCard 402’s adapter provides more flexibility to users that have multiple machines or who plan on upgrading within the next couple of years. ‘
I personally prefer USB modems, such as my Compas 597, because every single netbook and notebook on the market has at least one USB slot. If you don’t like dongles hanging off the side of your notebook, the AirCard 402 is worth a look.