It is designed to fit the entire electronics needed for a RepRap in one small package for low cost. RAMPS interfaces anArduino MEGA with the powerful Arduino MEGA platform and has plenty room for expansion.

With this board, you can easily build 3D printers and other CNC projects

Extended to control other accessories.
Heater / MOSFET outputs and three fan thermistor circuit.
Integration of additional security 5A and component protection
Control of additional heating bed 11A fuse
Suitable for 5 Pololu stepper driver board
Pololu board pin socket, so they can be easily replaced or removed for future designs.
I2C and SPI pins left for future expansion.
Hooked into all MOSFET PWM pin versatility.
Servo type connector is used to connect to the end stop , the motor and the light-emitting diodes. These connectors are gold-plated , rated current of 3A, very compact.
LED indicate when the heater output
Option to connect two motors.