?Upgraded Version?same structure as Ramps 1.5, have new 2pin connectors, have a good Heatsink above MOS tube in order to give a better function to heat dissipation, the Power is larger, the largest power will be up to or 270W.
?A4988 Driver board? widely used in 3D printers, having five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step; 3.3 and 5 V compatible logic supply.
?12864 LCD?The intelligent controller includes an SD card reader, rotary encoders and a 20-character × 4 line LCD display. You can easily connect it to your RAMPS 1.6 board using "smart adapter" included.
?Mega 2560 R3?Operating Voltage: 5V, Input Voltage (recommended):7-12V, Input Voltage (limits):6-20V,-Digital I/O Pins: 54 (of which 14 provide PWM output)
?Package include? 1 x RAMPS 1.6 Board,1 x Mega 2560 R3 Board,1 x 12864 LCD Display Controller,1 x LCD Smart Adapter,5 x A4988 Stepper,1 x 40pin Dupont Cable Female to Female,1 x 40pin Dupont Cable Female to Male