ELEGOO MEGA 2560 R3 Board with USB Cable Compatible Arduino Blue 54 Digital I/O, 16 Analog Inputs, 256 KB Flash, RoHS Compliant

100% Arduino IDE Compatible: The ELEGOO Mega 2560 R3 is fully compatible with the Arduino IDE and works with most shields designed for the Arduino Mega R3. RoHS-compliant for safe, reliable use. Same Chip as the Official: Powered by the ATmega2560-16AU main chip and ATmega16U2 USB chip — identical to the official Arduino Mega R3, ensuring full compatibility and stable performance. Improved R3 Pinout Design: This expert version features an enhanced 1.0 pinout with SDA and SCL pins near the AREF pin, plus two new pins near the RESET pin: IOREF for voltage-adaptive shield compatibility (works with both 5V AVR boards and 3.3V boards like the Due) and a reserved pin for future upgrades. Enhanced RESET Circuit & DC Barrel Jack: Equipped with a stronger, more reliable RESET circuit for a smoother user experience. Uses a 5.5 × 2.1mm DC barrel jack that is also compatible with 5.5 × 2.5mm DC plugs. Ready to Use Right Out of the Box: Everything you need is built right on the board. Simply connect it to your computer with a USB cable, or power it with an AC-to-DC adapter or battery, and you're ready to start building — no extra components required.