Color Others Brand Robotale Model RAMPS 1.4 3D Control Quantity 1 Piece Material FR4 English Manual / Spec No Other Features Arduino Mega2560 master control board: this is the brain of a 3Dprinter is responsible for the control of the printer to complete a specific action such as print specific files et RAMPS1.4: this is the main control board expansion board it is in order to better connect with other hardware and control have the effect of the bridge. A4988 stepper motor driver board: it is used to connect the stepper motor so as to realize the control of main control threatening the stepper motor XYZ and extruder.RAMPS1.4 LCD12864 Intelligent Controller: 3.2" display screen; Resolution: 128 x 64; Max. support 8GBUsing LCD control screen can realize off-line printing copy 3D Gcode file to SD card and then print; It is upgrade version of reprap smart controller. Packing List 1 x RAMPS1.4 LCD12864 1 x 3D 1.4 control board 1 x F 2560 R3 board 5 x 4988 driver boards 1 x Data cable (52cm) 2 x Connection cable (31cm) 1 x Adapter board