SENSOPER MC-EX-AQ4 expansion module is an Analog Output module can be use with CPU module. This Analog Output module was implemented for convert digital signal analog format and send to load by a 13 bit DAC. SPI interface enable communication with CPU module. DIP switches were integrated for change the chip selection address. This module internal operation power is 24V DC / 30mA. The 40 pin board to board connectors were included for make connection between CPU module or other expansion modules.