❤ 2560 and Ramps 1.4 are integrated in the board, which avoids the problem of complicated connectors and malfunctioning. Support a variety of stepper drivers such as A4988, DRV8825, TMC2100, available to change the stepper drivers and motors as users like. ❤ Reserve external driver signal, available to connect external high-current driver to drive the 57 and 86 stepper motors. Use high-quality MOSFET, better cooling effect and more stable. Use specific power chip, support 12V-24V power input, and resolve t. ❤ Stable and reliable filter circuit greatly reduces interference and avoids crashes as possible in the process of printing. Use CH340 serial port chip, more easily install the drive than 16U2.