Wi-Fi Protected Setup (WPS) is an authentication key distribution method. It can be performed in one of several ways.

PIN code: A PIN is entered on the client.

Push button: An actual or virtual button is pressed on the device and the client within a short amount of time.

Near field: The client is brought physically close to the device.

USB: An USB device is used to transfer data between the new client and the device. (Deprecated)