My arduino board

First of all I present you my board:

SainSmart UNO R3 ATmega328-AU ($11.10)

I don't recommended for non experience people because the controller chip is SMD and thus is very difficult to replace in case of failure. But in the other hand the free space on the board is filled with pins with all analog and digital in/out.

http://www.sainsmart.com/arduino/control-boards/sainsmart-uno-r3-atmega328-au-development-board-compatible-with-arduino-uno-r3.html