Asus USB-N13 - Manual (Page 15)

Connecting via the WPS button
1. Press the WPS button on your network adapter to launch the WPS Wizard.
3. Press the WPS button on the 802.11n network router.
2. From the WPS Wizard, select Use the WPS button. Click Next.
ASUS Network adapter 1
Chapter 2 - Installation
Chapter 2 Installation
WPS
button