i have focus motor fromDJI RS 2 Pro
Is this ok for ronin 4 d or no. I never use it and have in my stoke.

Hi, fansd8781149. Thank you for reaching out. The DJI Zenmuse X9 Focus Motor (6k/8k) can be used with Ronin 4D.

I asked about the motor ronin rs2.  Compatibility  motor focus with ronin 4d

fansd8781149 Posted at 6-14 23:57
I asked about the motor ronin rs2.  Compatibility  motor focus with ronin 4d

Hi, fansd8781149. Sorry for the confusion. The thread's title said DJI Zenmuse X9 Focus Motor so we assumed you are asking if that is compatible with the Ronin 4D. Just to clarify, are you asking if you could use the Focus Motor from the DJI RS 2 Pro to the Ronin 4D? If this is not correct, please feel free to correct me and elaborate on your concern. Thank you.

yes.  this is correct.