TE2 crossbone with ps360 RJ-54?

Hi I’m new to this and think I just messed up. I got an xbox one KI TE2 and ordered the TE2 crossbone and ps360 with all the cords I would need but im hearing you can’t use the ps360s RJ45 interface for legacy consoles. I been looking around for hours and really couldn’t find much on this topic. Any info would be amazing before I padhack a controller =) Thank you

this will explain everything