Amazon.com: KOOKYE 3PCS Pro Micro ATmega32U4 5V/16MHz Module Board 2 Row Pin Header for Arduino Mini Leonardo : Electronics
Amazon.com: HiLetgo 3pcs Pro Micro Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible to Arduino Pro Micro Serial Connection with Pin Header : Electronics
Amazon.com: AITRIP for Arduino Nano V3.0, Nano Board CH340/ATmega328P with USB Cable, Compatible with Arduino Nano V3.0 (Nano x 3 With1 Cable) : Electronics
Amazon.com: Nano V3.0, Nano Board ATmega328P 5V 16M Micro-Controller Board Compatible with Arduino IDE (Nano x 3 with USB Cable) : Electronics
Amazon.com: ACEIRMC 3pcs Type-C USB CH340 5V 16MHz for Nano 3.0 ATmega328P Controller Board Compatible for Arduino Nano CH340 USB Driver Nano V3.0 ATmega328 (Type-C) : Electronics
Amazon.com: CH340 Nano 3.0 Mini USB Driver ATmega328 5V 16M Micro Controller Board Module Nano CH340 V3.0 for Arduino with USB Cable : Electronics
Amazon.com: 1PCS Promotion for arduino Nano 3.0 Atmega328 Controller Compatible Board WAVGAT Module PCB Development Board Without USB V3.0,Micro Nano : Electronics
Amazon.com: Arduino Nano RP2040 Connect with Headers : Electronics
Arduino Nano Every (Single Board) : Electronics - Amazon.com