Pro Micro 3.3V Module with ATmega 32U4 Board-Arduino Leonardo similar 3.3V/8MHz
Clock speed: 8MHz. Analog inputs: 4. Digital inputs and outputs (I/O pins): 12 (including 5 PWM outputs). Current per I/O pin: 40mA. We are in endeavor to provide you best service and keep you a happy buying experience from us.