Microsoft’s original Xbox was regarded curiously ... talks to a MAX3421 USB host controller, which interfaces with an Xbox 360 wireless receiver, either genuine or third-party.
and although its proprietary connector was actually using USB, the controller scheme wasn’t as open. This is [Tom]’s effort of upcycling his original Xbox controller to work indistinguishably ...
As for what you can plug the Wireless USB Adapter 2 into, it supports Windows, macOS, Android, SteamOS, Switch, and Raspberry Pi. Short of the Xbox and PlayStation, it works with nearly any device ...