What exactly is it? I am going to get an IMAC and i want to have super fast internet. The problem is my wireless internet system is on the second floor with my imac being in the basement. Can I install apple airport in my basement so I have internet super fast in my basement? Can anyone help me understand? Thank you for your time.

you would need a wireless repeater which extends the range of your wireless signal also conditions such as thick walls may prevent a strong signal