Mikroe MCU CARD 3 for PIC PIC18F97J60 is an add-on board that allows for the simple installation and replacement of a microcontroller unit (MCU) on a development board with an MCU Card socket. The new MCU Card standard ensures compatibility between a development board and any supported MCUs, regardless of pin number and compatibility. MCU Cards are equipped with two 168-pin mezzanine connectors to support MCUs with extremely high pin count. The MCU Card allows for simple usage, following the well-established plug-and-play concept of the Click board line.