A Wi-Fi adapter allows you to turn a desktop or laptop computer into a wireless device. Once installed, you can use the Internet without the need for a network cable.
What is a wireless adapter? | Internet setup
There are several types of Wi-Fi adapters, both internal and external. Which one you choose depends on the type of computer you have, the ports available, and how much you are willing to spend.
A Wi-Fi adapter allows you to connect your desktop or laptop to your wireless router, giving you access to your home network and the Internet.
Without a WiFi adapter, you will need to run an Ethernet cable from your router to your computer and connect it to your computer's Ethernet port.
