Solu Due Sam3x8e for Robot Arduino UNO Mega2560 R3 Duemilanove 2013 + Free USB Cable/due 2013 R3 (Arduino-compatible) Control Board Sam3x8e 32-bit ARM IDE Module Dkl /Ximico DUE Board Sam3x8e 32-bit ARM Cortex-m3 Full Compatib Arduino Due/due R3 Board Sam3x8e 32-bit ARM Cortex-m3 for Arduino Compatable + Free USB Cable AT91SAM3X8E ARM 32-bit Microcontroller @ 84MHz Operating Voltage: 3.3V 54 digital I/O pins, 12 analog inputs, 2 DAC (analog output) Flash Memory: 512 KB all available for the user applications We produce this board based on the open-source arduino official schematics.The printing or color on the board may be different from each production date, but the function is exactly the same.