1. Arduino-compatible Board. New.
2. ATmega328 running at 16MHz with external resonator (0.5% tolerance)
3. USB connection off board
4. Supports auto-reset
5. Max 150mA output
6. Over current protected
7. Reverse polarity protected
8. DC input 5V up to 12V
9. On board Power and Status LEDs
10. Size:(Long)33mm *(wide1)18 mm *(high)6mm
B: 3PCS Gilded Pin *5