To anyone with a 360, I need some help with finding a wireless adaptor

I don't really want to spend 80-100 bucks on the Wireless adaptor and I was wondering what you guys use? Is their a cheaper way to get around this?
SEIBERTRON - Your Planet For Everything Transformers
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https://www.seibertron.com/energonpub/viewtopic.php?f=28&t=660