The Arduino Micro is essentially a shrunk-down (1.9″ × 0.7″) version of the Arduino Leonardo: it is a microcontroller board based on the ATmega32U4
Nettigo: Arduino Pro Micro clone ATmega32U4 3.3V / 8MHz [Yā nǔ shén]
Pro Micro (USB-C Version) - 5V/16MHz - Arduino-compatible
New Pro Micro for arduino ATmega32U4 5V/16MHz Module with 2 row
MICRO/TYPE-C USB ATMEGA32U4 Module 5V 16MHz Board For Arduino
Arduino Pro Micro — KeyHive
Pro Micro (USB-C Version) - 5V/16MHz - Arduino-compatible
Micro Arduino Documentation
Pro Micro (Micro-USB) - 5V/16MHz - Arduino-compatible ATmega32U4
Arduino Micro RETAIL - DFRobot
The Arduino Micro is essentially a shrunk-down (1.9″ × 0.7″) version of the Arduino Leonardo: it is a microcontroller board based on the ATmega32U4
Arduino Micro