"VGN Dragonfly 3 Pro Max" What is the MCU of this mouse???

Very confused on what the MCU of this mouse is becuase some sites are saying that it is the "High-Performance Main Chipset" and others says it the "Nordic 54L15". If anyone know please tell. Also if it really was the "High-Performance Main Chipset" what is the exact like brand name of it? Much appreciated to anyone who can answer