I want to have an Xbox 360 controller to be connected wireless to an iMac.
I suppose it can be done via Bluetooth, or having a reciever plugged into an USB port, but I'm not sure which controller type should I buy. I have an Xbox 360 wireless controller (2013), but it seems not discoverable at all.
Best Answer
The absolute best way to use any sort of Xbox controller on Mac is to install the 360Controller unofficial open source driver:
https://github.com/360Controller/360Controller#about
It works with the official Microsoft 360 wireless receiver. Probably also the knockoffs. It works with tons of unofficial 360 controllers. Tons of Xbox One controllers. Even tons of original Xbox controllers, if you can figure out how to plug them in.
BUT! There is an issue with Xbox 360 wireless controller support on newer versions of OS X:
Depending on how old your version of macOS is, this might work for you.