It plugs directly into a desktop computer or an older laptop that doesn’t have built-in Wi-Fi (or has a broken Wi-Fi card). It allows that computer to connect to a nearby Wi-Fi network.
Interface: Plugs into a standard USB 2.0 port.
Speed: Supports wireless speeds up to 300Mbps on the older Wireless-N (802.11b/g/n) standard.
Security: Supports standard Wi-Fi encryption (WEP, WPA/WPA2).