For 3D Printer Accessories RE-ARM Controller For RAMPS Simple 32-bit Upgrade CNC Machines MEGA 2560 Board

Features:
More powerful processor, faster feed rates.
With 32-bit controllers has speed and feature upgrades.
Easy configuration using a text file on SD card, no need to upload firmware every settings change.
SD card appear as a drive in windows, easy drag and drop new firmware or edit config file.
Run SD cards, for settings and firmware(on board) or for file loading (on LCD).
5V tolerant pins, except for analog inputs which are at 3.3V.
Filtered endstop inputs.
Suitable for DIY 3D printing, CNC machining and red light cutting.