SunFounder Uno R3 for Arduino ATMEGA328P ATMEGA16U2

Technical Details:
Microcontroller: ATmega328
Operating Voltage: 5V
Input Voltage (recommended): 7-12V
Input Voltage (limits): 6-20V
Digital I/O Pins: 14 (of which 6 provide PWM output)
Analog Input Pins: 6
DC Current per I/O Pin: 40 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 32 KB (ATmega328) of which 0.5 KB used by bootloader
SRAM: 2 KB (ATmega328)
EEPROM: 1 KB (ATmega328)
Clock Speed: 16 MHz

Package included:
1x SunFounder UNO R3 (Arduino compatible)

For more information, please view at
http://wiki.sunfounder.cc/index.php?title=Install_Arduino_Software