Microcontroller : ATmega 2560Operating Voltage : 5VInput Voltage (recommended) : 7-12VInput Voltage (limits) : 6-20VDigital I/O Pins : 54 (of which 14 provide PWM output)Analog Input Pins : 16DC Current per I/O Pin : 40 mADC Current for 3.3V Pin : 50 mAFlash Memory : 256 KB of which 8 KB used by bootloaderSRAM : 8 KBEEPROM : 4 KBClock Speed : 16 MHzPacking include:1 x For Arduino MEGA2560 R3 Development Board1 x USB Cable