Make sure this fits by entering your model number. Elegoo Mega 2560 board is 100% compatible with Arduino IDE and designed for Arduino Mega Kit Project Elegoo Mega 2560 R3 board use Atmega2560-16au and Atmega16u2 as the controller chip which is the same with the official Arduino Mega 2560 board Improved and expert version: 1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible both with the board that use the AVR, which operate with 5V and with the Due that operate with 3.3V. The second one is a not connected pin, that is reserved for future purposes.
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