1. Arduino-compatible Board. New.2. ATmega328 running at 8MHz with external resonator (0.5% tolerance)3. USB connection off board4. Supports auto-reset5. Max 150mA output6. Over current protected7. Reverse polarity protected8. DC input 3.3V up to 12V9. On board Power and Status LEDs10. Size：（Long）33mm *（wide1）18 mm *（high）6mmPackage:1 x Mini Pro 3.3V 8M Atmega328 Replace ATmega128 Arduino Compatible Nano
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