A device that adds 3G or 4G (LTE) cellular connectivity ... For older laptops, modems may be available for ExpressCard or PC Card/CardBus slots. A cellular modem via USB is a "USB modem." ...

Over the past few months, we’ve seen scattered reports suggesting that Apple has been angling to drop Qualcomm as a supplier of LTE modems for the iPhone. About five weeks ago, for example ...