The Verizon Wireless AirCard is a device that a user connects to his notebook computer to establish a bridge between the computer and the Verizon wireless network. As of 2015, Verizon AirCards do not require a PC card slot and instead connect to a USB port to serve as modems.
While the size of AirCards varies depending on the type, most support 3G and 4G wireless networks. Some models also include connectors for external antennas and GPS functionality. One of the benefits of AirCards is that they don’t require charging since they draw power directly from the USB port. The downside is that they provide a means to access a wireless network only for the computer to which they’re connected.