Nano Board R3 with CH340 chip compatible with Arduino (soldered)
The ATmega328 Nano is a small, complete, and breadboard-friendly board based on the ATmega328 (ATmega328 Nano 3.x). It has more or less the same functionality of the ATmega328 Duemilanove but in a different package. It lacks only a DC power jack and works with a Mini-B USB cable instead of a standard one.