Arduino MEGA2560 Micro USB CH340G Clone — KKSB Cases
Mini USB ATmega32U4 Pro Micro 5V 16MHz Board Module For Arduino/Leonardo ATMega 32U4 Controller Pro-Micro Replace Pro Mini
Amazon.com: RedTagCanada Pro Micro Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Board Microcontroller Compatible to Arduino Pro Micro Serial Connection wPin Header (1, Pro Micro ATmega32U4 Micro-USB) : Electronics