Elegoo MEGA 2560 R3 (Black)

About this item
The mega is 100 percent compatible with Arduino and most shields designed for the Arduino Mega2560 R3
The chip is Atmega2560-16au and Atmega16u2, same with the official version
Improved and expert version: 1.0 pinout: added SDA and SCL pins that are near to the AREF pin
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