Apple Mac mini (Mid 2011) - Manual (Page 12)

12 Chapter 1 Ready, Set Up, Go
Step 2: To access the Internet or a network, connect one end of an Ethernet cable
to your Mac mini and the other end to a cable modem, DSL modem, or network.
® HDMI
Your Mac mini comes with AirPort Extreme technology for wireless networking.
For information about setting up a wireless connection, choose Help > Help Center,
and search for “AirPort.”