ASHATA 3D Printer Accessory Motherboard Kit for Mega 2560 R3 + A488 with Heat Sink USB Cable Kit

Cut off the receptacle or female connector of the power cord. Cut out the cable jacket with a nipper and a stationery knife. Pay attention to the color of each wire. If you use an automatic wire stripper, it will be more convenient. About 1.5cm will be okay for the length of the stripped wire. Cut the red wire(+ pole) at the point of about 20cm from the end. Strip about 1.5cm of insulation. Insert 5mm-width heat shrink tubes BEFORE you start soldering. Do the same soldering job for the other wire. Shrink the insulation tubes with a heat gun. Check the correct position of the switch. For easier operation, separate the power terminal of the RAMPS board. Make sure of the polarity of each pin. Connect the RED wire to +V and the Black wire to -V.