The M36 hub board is specially designed for use with 36 circular stepper motors (Nema14) and can be used on mini Stealthburner or other print heads using 36 motors. With special connection cables, it can also be adapted to any other system using klipper. Based on STM32F072 USB interface or CAN(need addon board) Onboard TMC2209 3 x 4Pin(2pin/3pin compatible) controlled Fans (default VIN power supply, 5V optional) 1 x signal input/output interface (default 5V power supply, VIN optional, with level shift) 2 x signal input and output interface (3.3V power supply, with 10K pull-up resistor, without level shift) 2 x 5V single wire RGB interface (1A MAX) 1 x 3A MAX PWM output for heating rod 2 x ADC interface for heating temperature or other needs 1 x onboard thermistor for board temperature or champer temperature monitor Comes with 250mm 4-core cable 24V/7A max Power Supply Comes with terminal housing and wire crimping tabs Onboard ADXL345 More :https://github.com//M36_HUB_V1 Note:Factory screen printing batch numbers are different Colour:Black Material:PCB+electronic components Package Contents: 1 * M36 Hub Board 1 * accessory package Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.