cellular modem

(redirected from 4G card)

cellular modem

A device that adds wireless 3G or 4G (LTE) connectivity to a laptop or desktop computer. Typically available as an external USB module, the modem may also be on a PCI or PCI Express (PCIe) card that plugs into an empty slot on the motherboard. For older laptops, modems may be available for ExpressCard or PC Card/CardBus slots.

Known By Many Names
A cellular modem via USB is a "USB modem." On a card, it can be an "air card," "data card" or "broadband card." Generic terms are "broadband adapter," "broadband modem," "cellular adapter," "3G modem" and "4G modem."

Alternatives: Smartphones and Routers
While the cellular modem plugs directly into the computer, smartphones and stand-alone broadband routers convert cellular signals into a Wi-Fi hotspot for nearby devices. See cellular hotspot and mobile broadband router.


An Internet "Stick"
Connecting via USB, this Verizon modem adds 3G CDMA cellular data service to a computer or tablet. (Image courtesy of Verizon Wireless.)







A Hotspot and Tethering
This Android Galaxy Note 3 smartphone provides cellular data service by becoming a hotspot or by cabling directly to a computer via USB (see tethering). Older cellphones were occasionally used as dial-up modems for a computer.
References in periodicals archive ?
Lot 2 mobile telephony, including 4G card and mailing of SMS
While support techs from either company weren't able to help, significant internet research and new login variables in the router's USB 4G settings got us connected, after which the 4G card became plug-and-play.
Because of the sub-3Mbps upload speed of our 4G card, I chose these settings:
The first day we streamed, we had five dropouts of the stream that I attribute to the 4G card.
In addition to providing a superior user experience, the Dell Venue provides multiple modes of data communications including Wi-Fi, Ethernet and an embedded 4G card.
e devices are tted with 4G cards meaning ocers can watch live footage of key areas in the city's red light district and download high quality footage if residents report a nuisance.