This review refers to the USB version. Great controller build. Most of the keys were recognized by my retro pi on my raspberry pi. Unfortunately, the trigger buttons (LT and RT) were not recognized. I emailed support and they suggested holding x or y when connecting the controller. When I held down x, the trigger buttons were not recognized. When I plugged in while holding y, none of the keys were recognized. Support blamed the old software (which admittedly isn't the final version) so I justโฆ