Connecting a 40W Laser to an X-carve

Good day

I am planning to convert my pre-2016 x-carve to a full time laser machine, so I bought the LASERTREE 40W Laser, my challenge is that the laser requires a PWM/TTL and my controller does not have any PWM/TTL output please can you guide me as to where I can connect the PWM on the controller, I have attached the picture of the controller for ease of reference, apologies if this issue was discussed already.
Thank you

Is it possible to have variable power to the Laser module?

Hi @JoshuaGarcia thanks for the response, I managed to connect and everything seem to work perfectly, I used the yellow wire for PWM/TTL