1. The PCB has a built-in selection terminal for driving the SPI working mode, and is compatible with STEP/DIR and SPI modes.
2. The parts of power and heat bed using the 30A high current terminal ,which can largely avoid the burning terminal situations.
3. It is more clear to connect the wire after update a new top overlay and bottom overlay .
4.Adding the reset expansion interface，It is convenient for users to extend the reset button.
5. X, Y, Z, E0, E1 all use parallel dual motor interface, so that the board can use for more type machine .
6, Using a combination of color pin and row connector , effectively distinguishing each function interface, beautiful and practical.