The AXS Stealth Controller is compatible with either a MMX clamp or Discrete clamp. The clamp type included with complete bikes is determined by the bike manufacturer when the bike is built, and can be changed later.
Please note, the AXS Stealth Controller is designed to mount between the clamp and a mechanical dropper post remote and requires that a mechanical dropper post remote is installed to hold it in place, as the mounting hole is not threaded.