NANO Expansion Board + ATmega328P Nano V3 Improved Version For Arduino Description: NANO Expansion Board The extension board specifically for the arduino NANO ， welding on two rows of pins， can be used in the arduino duemilanove 2009， UNO R1 ATmega328P Nano V3 Improved Version Microcontroller Atmel ATmega328 Operating Voltage (logic level): 5V Input Voltage (recommended): 7V ~ 12V Input Voltage (limits): 6V ~ 20 V Digital I\/O Pins: 14 (of which 6 provide PWM output) Analog Input Pins: 8 DC Current per I\/O Pin: 40mA Flash Memory: 32KB (ATmega328) (of which 2 KB used by bootloader) SRAM: 2KB (ATmega328) EEPROM: 1KB (ATmega328) Clock Speed: 16MHz Note: Have changed the USB chip， can improve the download speed and stability of WIN7\/WIN8 This version is no welding and not included the USB cable. Package included: 1 x 328P Multifunction Expansion Board V3.0 1 x Not welding Arduino Compatible Improved Version Nano V3.0