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10PCS PRO MICRO/MINI USB 5V 16MHz Board Module For Arduino/Leonardo ATMEGA32U4-AU/MU Controller
Upgrade Your Arduino Pro Mini With Atmega32u4 5v 16mhz Chip - Compatible With Leonardo R3 - Temu
Mini USB ATmega32U4 Pro Micro 5V 16MHz Board Module For Arduino/Leonardo ATMega 32U4 Controller Pro-Micro Replace Pro Mini - AliExpress
Pro Micro Leonardo - 5V/16MHz
Amazon.com: KOOKYE 3PCS Pro Micro ATmega32U4 5V/16MHz Module Board 2 Row Pin Header for Arduino Mini Leonardo : Electronics
Amazon.com: AITRIP Pro Micro ATmega32U4 5V/16MHz Module Board with 2 Row pin Header Compatible with arduino Leonardo Replace ATmega328 Pro Mini (1 PCS) : Electronics