Brand N/A Model TJ2560 Quantity 1 Color Black + blue Material Board Features Arduino Mega is a development board that based on ATmega2560; With 54 units I/O ports (14 of them can be as PWM output) 16 of them as analog input port 4 of them as UART (hardware serial ports); Uses 16 MHz crystal oscillator; With bootloader can download program through USB directly; Can be powered either by USB or by adapter / external battery Specification Microcontroller ATmega2560 Operating Voltage: 5V; Input Voltage (recommended): 7~12V; Input Voltage (limits): 6~20V; Digital I/O Pins: 54 (of which 14 provide PWM output); DC Current per I/O Pin: 40 mA; DC Current for 3.3V Pin: 50 mA; Flash Memory: 256 KB of which 4 KB used by bootloader; SRAM: 8KB; EEPROM: 4KB; Clock Speed: 16MHz Application For basic learning; A product for Arduino that works with official Arduino boards Other Power: powered by USB or external power; Auto shift; External power can choose AC-to-DC adapter or battery; Limit voltage is 6~12V if supply power is lower than 6V I/O port can not provide 5V voltage and cause instability; While if supplied power is higher than 12V regulating device will over-heat and damage Arduino MEGA; Thus suggested voltage is 6.5~12V or 7.5 / 9V English Manual/Spec http://arduino.cc/en/Main/Software Packing List 1 x 2560 development board 1 x Expansion board 1 x Small breadboard 1 x Advanced breadboard 5 x Red LEDs 5 x Yellow LEDs 5 x Green LEDs 10 x 10K resistors 10 x 1K resistors 10 x 220R resistors 1 x 74HC595 1 x Passive buzzer 1 x Active buzzer 1 x 1-digit display 1 x 4-digit display 10 x Buttons 3 x Photoresistors 1 x Adjustable resistor 1 x LM35 therometer 1 x IR connector 1 x Sensor 2 x Ball switches 1 x Remote control (2 x AG10 included) 1 x 1602 crystal display 1 x PS2 analog stick 1 x Step motor (25cm) 1 x Step motor driver board 1 x 9g Micro servo (26cm) 1 x RGB module 1 x Relay module 30 x Jumper wire (23cm / 11cm) 10 x Dupont wire (31cm) 1 x 2.54pin 1 x USB cable (61cm) 1 x Battery holder (6 x AA)