MEGA 2560 R3 board - generic - Top quality clone

The Arduino Mega 2560 is a microcontroller board based on the ATmega2560. It has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Mega 2560 board is compatible with most shields designed for the Uno and the former boards Duemilanove or Diecimila.

Microcontroller              ATmega2560
Operating Voltage          5V
Input Voltage (recommended) 7-12V
Input Voltage (limit)        6-20V
Digital I/O Pins               54 (of which 15 provide PWM output)
Analog Input Pins           16
DC Current per I/O Pin    20 mA
DC Current for 3.3V Pin   50 mA
Flash Memory                 256 KB of which 8 KB used by bootloader
SRAM                            8 KB
EEPROM                         4 KB
Clock Speed                  16 MHz
LED_BUILTIN                 13
Length                          101.52 mm
Width                            53.3 mm
Weight                          37 g