Apple Mac mini (Mid 2011) - Manual (Page 13)

13 Chapter 1 Ready, Set Up, Go
Step 3: Connect the USB cable from your keyboard and mouse.
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HDMI
Your Mac mini doesn’t come with a keyboard or a mouse, but you can use almost any
USB keyboard and mouse. If your keyboard has a USB port (d), plug your mouse into
the USB port on the keyboard. If it doesn’t, plug the mouse into a USB port (d) on the
back of your Mac mini.
Note: If you have Mac OS X Lion Server, you can set it up remotely from another
computer. For information, open the Server application and choose Server Help from
the Help menu.