FRDM-MCXA366 are compact and scalable development boards for rapid prototyping of MCX A355, A356, A365 and A366 MCUs. They offer industry standard headers for easy access to the MCU's I/Os, integrated open-standard serial interfaces, external flash memory and an on-board MCU-Link debugger. Additional tools like our Expansion Board Hub for add-on boards and the Application Code Hub for software examples are available through the MCUXpresso Developer Experience.