Arduino Pro Micro - 5V/16MHz - RoboticX

Enhancement V2 Pro Mini 3.3V/5V Adjustable 16MHZ

Pro Micro - USB-C - 5V/16MHz - ATmega32U4 - SparkFun DEV-15795 Botland - Robotic Shop

Arduino Pro Micro - 5V/16MHz - RoboticX

The Inland PRO MICRO is a microcontroller board based on the ATMEGA32U4-MU. It is an easy-to-use open source hardware and is fully compatible with Arduino. This board offers 18 GPIO and 9 analog input pins as well as SPI and I2C serial communication.

Inland Pro Micro Development Board Arduino Compatible KS0249

OSOYOO Pro Micro 5V/16MHz Module Board with 2 Row pin Header Replace wit Pro Mini for Arduino : Electronics

Arduino Micro — Arduino Official Store

Pro Micro & Fio V3 Hookup Guide - SparkFun Learn

Pro Micro 5V / 16MHz - ProtoSupplies

Pro Micro/ Type-C ATmega32U4 5V 16MHz Replace ATmega328 For Arduino Pro Mini With 2 Row