Iduino Pro Mini 328 5V 16Mhz(compatible with arduino pro mini)
*** Description:This is a 5V pro mini running the 16MHz bootloader.  Pro Mini does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend first time Arduino users start with the Duemilanove. It's a great board that will get you up and running quickly. The Pro series is meant for users that understand the limitations of system voltage (5V), lack of connectors, and USB off board.   ***Features:     ATmega328  , running at 16MHz with external resonator (0.5% tolerance);  USB connection off board;  Supports auto-reset;  5V regulator;  Max 150mA output;  Over current protected;  Reverse polarity protected;  DC input 5V up to 12V;  On board Power and Status LEDs