Wireless network interface controller
Usually abbreviated as WNIC, a wireless network interface controller is a network card that connects to a wireless radio-based computer network instead of a wired network.
It uses an antenna to communicate through microwaves and it works on Layer 1 and Layer 2 of the OSI Model, just like it happens with other NICs.
Establishing a connection is usually possible by using the computer’s PCI bus or the USB port.