Overview This board is the combination of Mega2560 R3 and ramps 1 4 In this case you do not have any worries on the connection problems It is compatible with A4988 and 8825 driver which is more flexible In order to achieve better cooling the board has the highest quality circuit board and MOSFET Whats more we use LM2576 ultra wide power supply chip which supports 12v 24v power input In this case we can solve the heating problem of the Ramps Specifications Accept 24V power supply input Decrease 1 4 current of the heatbed to solve the heating problem of MOS Use Marlin software as Ramps 1 4 Connect Ramps 1 4 LCD2004 and LCD12864 directly Reserve pulse motor and direction output ports to make it convenient to connect heavy current motor driver eg 2A 5A Retain the Servos AUX 1 AUX 2 AUX 3 ports provide three 5V output ports and three 12V input portsClick for more info Package Included 1x SainSmart 3D Printer Controller Panel Board