The GEEETECH mainboard is easy to assemble and operate. It is equipped with an ATMEGA2560 chip, is compatible with an input voltage of 12V/24V and comes with an interface for the heatbed. In addition, the mainboard is equipped with two interfaces for fans and one interface for LED light. It is powered by an A4988 single or multiple extruder stepper motor driver. You can expand the board with an LCD screen and an SD card.