what cable do i need to connect my csp v2 to my csw 2.5?

Racer fast

right now i connect the pedal to my pc using USB because i am missing that special cable.

Gergő Sófalvi

https://fanatec.com/eu-en/accessories/pedal-accessories/sp-pedals/shifter-cable-2.0m-ps/2-rj12

PS/2 - RJ12 Cable