Aktronics Nano V3.0 ATmega328P 5V 16MHz Micro Controller Board Module Nano Board CH340G Chip with Mini USB Cable for Arduino ( Soldered Nano ) (Pack of 5) Micro Controller Board Electronic Hobby Kit

Specification: Microcontroller?Atmel Atmega328P-AU MCU Operating Voltage (logic level)?5 V Input Voltage (recommended)?7-12 V Input Voltage (limits)?6-20 V Digital I/O Pins?14 (of which 6 provide PWM output) Analog Input Pins?8 DC Current per I/O Pin?40 mA Flash Memory?16 KB (ATmega168) or 32 KB (ATmega328) of which 2 KB used by bootloader SRAM?2 KB (ATmega328) EEPROM?1 KB (ATmega328) Clock Speed?16 MHz 2011 Driver version 3.3.2011.11 for Windows 7: osoyoo.com/driver/CH341SER.zip 2014 Driver version 3.4.2014.8 for Windows 8+: http://www.arduined.eu/ch340-windows-8-driver-download/ The new driver CH34x_Install.zip for Mac OS-X El Capitan: kig.re/downloads/CH34x_Install.zip Older Driver for MAC: kig.re/downloads/CH341SER_MAC.ZIP