Pro Micro ATmega32U4 5V 16MHz Micro-USB Development Module Board with 2 Row pin Header Compatible ard-uino Leonardo Replace ATmega328 Pro Mini : Electronics

Pro Micro ATmega32U4 5V 16MHz Controller Board Replace ATmega328 For Arduino Pro Mini With 2 Row Pin Header For Leonardo UNO R3 - AliExpress

AITRIP Pro Micro ATmega32U4 5V/16MHz Module Board with 2 Row Pin Header Compatible with Arduino Leonardo Replace ATmega328 Pro Mini (1 Pcs)

Mini USB Leonardo Pro Micro ATMEGA32U4 5V 16MHz Board Module For Arduino–OKY2010-1 – OKYSTAR

AITRIP 2PCS Pro Micro ATmega32U4 5V 16MHz Type-C Development Module Board with 2 Row pin Header Compatible arduino Leonardo Replace ATmega328 Pro Mini : Industrial & Scientific

Thinary Electronic Pro Micro ATmega32U4 5V/16MHz Module controller Mega32U4 mini leonardo for arduino - AliExpress

KOOKYE 3pcs Pro Micro ATmega32U4 5V/16MHz Module Board with 2 Row Pin Header for Arduino Leonardo Replace ATmega328 Arduino Pro Mini

SparkFun 12640 Pro Micro - 5V/16MHz

OSOYOO Pro Micro Board ATmega32U4 Leonardo 5V/16MHz Module Board Type

I made these little controller boards for CircuitPython that are compatible with an Arduino Pro Micro footprint. : r/electronics

Upgrade Your Arduino Pro Mini With Atmega32u4 5v 16mhz Chip - Temu Australia

Pro Micro Atmega32u4 5v 16mhz Replace Atmega328 For Arduino Pro Mini With 2 Row Pin Header For Leonardo Mini Usb Interface - Integrated Circuits - AliExpress

10pcs Type-c Mini Usb Pro Micro Atmega32u4 5v/16mhz Module With 2 Row Pin Header For Leonardo Usb Interface Board For Arduino - Integrated Circuits - AliExpress

ATmega328 running at 16MHz with external resonator. USB connection off board. DC input 5V up to 12V. RoHS Compliant. The Arduino Pro Mini 328 - 5V/16MHz is a 5V Arduino running the 16MHz bootloader. Arduino Pro Mini does not come with connectors populated so that you can solder in any connector or wire with any orientation you need.

SparkFun Arduino Pro Mini 328 - 5V/16MHz

Pro Micro - 5V/16MHz - DEV-12640 - SparkFun Electronics

Arduino Micro — Arduino Official Store