The firmware is the prevalent Marlin, which is known for its stability, usability, and high-performance. The current is 12A for heatbed and 5A for other parts. The cooling fan can support 12V. The main circuit adopts SMD fuse tube, the diode added to the power port can provide reverse protection to the whole circuit, in addition, the 5V USB is USB port protected with 500mA Recoverable fuse.
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