Pro Micro Leonardo - 5V/16MHz

The Pro Micro Leonardo is similar to the Pro Mini except with an ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on-board and do away with bulky external USB interface.

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

Pro Micro ATmega32U4 5V 16MHz Original Chip Replace ATmega328 For Arduino Pro Mini With 2 Row Pin Header For Leonardo UNO R3

Pro Micro Module with ATmega32U4, 5V, 16MHz, Arduino compatible

Pro Micro 5V 16Mhz Mini Leonardo Micro Controller Development Board For Arduino

Pro Micro ATmega32U4 5V/16MHz Mini MCU Leonardo Micro USB - BEEMONG TECHNOLOGY

Pro Micro ATmega32U4 5V 16MHz Leonardo Arduino Compatible – Envistia Mall

Pro Micro 5V / 16MHz - ProtoSupplies

Pro Micro (USB-C Version) - 5V/16MHz - Arduino-compatible ATmega32U4 – Keebio

Pro Micro 5V 16Mhz Mini Leonardo Micro Controller Development Board For Arduino