RAMPS 1.4 REPRAP Contoller Board+ Mega2560 + A4988 Drivers Heatsink Kit for 3D Printer

Feature RAMPS 1 4RAMPS designed to fit the entire electronics needed for a RepRap RAMPS interfaces an Mega with the powerful MEGA platform and has plenty room for expansion The modular design includes plug in stepper drivers and extruder control electronics on an MEGA shield for easy service part replacement upgrade ability and expansion Mega2560 BoardWorking voltage 5VInput voltage recommended 7V 12VInput voltage limits 6V 20VDigital I O Pin 54 of which 14 PWM Analog input Pin 16DCwave on each I O pin 40mA3 3V pin current 50mAFlash memory 256KBSRAM 8KBEEPROM 4KBSpeed 16MHzA4988 DriverStepper motor driverThis is a carrier board or break out board for Allegros A4988 DMOSPackage included 1 x RAMPS 1 4 complete soldered and assembled 1 x Mega2560 Board5 x Soldered A4988 driver5 x Heatsink for A4988 driver1 x USB cable