Review on USB Converter PXN K5PRO: Keyboard and Mouse Adapter for PS3, PS4, Xbox One, Nintendo Switch - Enhance Your Gaming Experience by Ashley Howard

If you have an Xbox and can't use a controller to save your life, this has to be it. Works perfect. I've only had enough of a few games (Hawken, War Zone, Mass Effects) but I have no doubt that it can work with most if not all first shooters. This converter is not programmable and the keyboard layout can be very awkward, but it will be fine once you get used to it. In addition, you can change the controller settings in the game itself. The price was great, shipping was fast and most importantly it does what it's supposed to do.