Official comment

@Oneill > The XDJ-RX is not a Serato DJ-compatible hardware device, and as such, is not recognized by the Serato DJ software. Even if you had a license to unlock the software and map the controls through MIDI, as others have pointed out (below), you would not have visual feedback to the LEDs and you would also have no control over the jog wheels (something that is not mappable in the software).