It’s a significant update. The Arduino UNO and Arduino Mega 2560 update the Duemilanove and Mega respectively. They now use an ATMega8U2 instead of an FTDI USB to serial converter chip.

in contrast to the female headers typically found in bigger boards like the Uno and Mega. The Nano also conveniently works with the Arduino IDE out of the box. This makes it easy for newbies to ...