A device that adds wireless connectivity to a laptop or desktop computer. All of the adapters below are available as external USB modules as ... also called "cellular modems," "air cards ...

A modem that plugs into the USB port of a computer. The term states only that the connection to the computer is via USB but does not imply which network service is supported. It often refers to a ...

Enter the isolated USB null-modem. The device consists of two USB Communication Device Class, or CDC chips, creating a USB serial port for each attached computer. The TX and RX lines are cross ...