If the high current of the hotbed brings multiple problems to your mainboard, this is the solution.

The 3D Printer Heated Bed Power Module allows the control a maximum current of about 30A with 12V voltage.
The connector JP1 allows to choose the operating logic of the control signal: if the signal that activates the plate is negative, the jumper must be positioned towards "IN_N", while if positive towards "IN_P".
Consequently, based on the choice made, it will be necessary to connect the signal to the CN1 connector.

The package also includes 4 fastons to be crimped on the cables to make the connections, as well as the two nuts for fixing to the 3D4040.