A:AnswerNo, it does not work that way. This is not used to connect your controller to your Xbox. It's only purpose is to connect an Xbox One controller to a PC if you were going to play a game on your PC.
A:AnswerI have the Stealth 700. You will need this XBox PC Adapter for it to work with the PC. You do not need this for them to work with XBox One as the XBox One is already set to work with these. Either way, you do not need a special controller.
A:AnswerThe XBox One S has a built-in wireless adapter, you only need this to connect Xbox wireless controllers/headsets to a PC. Only one adapter is necessary to support multiple controllers/headsets. Of course, most PC games are better with a gaming mouse than an XBox controller; I only bought this to be able to use my $100 XBox headset with the PC.
A:AnswerDepends on what you mean by "on steam specifically." Steam runs on multiple platforms. There are steammachines which run on a linux/debian os and there is steam for Microsoft Windows.
This product was specifically made to be compatible with Windows 10. If you use steam on Windows 10 - this product is awesome. I've used it on a Windows 7 machine and it worked fine too.. but, the headset adapter doesn't work on the controller (this only works on windows 10).
A:AnswerNo, this unit allows you to use an Xbox One controller with a Windows PC. In order to use a keyboard and mouse on an Xbox One, you just plug them into the USB ports on the console.