Amazon.com: SparkFun RedBoard Qwiic ATMega328P compatible with Arduino board w/ Qwiic Connector and CH340C Serial-USB Converter IC Breadboardable R3 footprint microcontroller Improved reset button : Electronics
ELEGOO MEGA R3 Board ATmega 2560 + USB Cable Compatible with Arduino IDE Projects RoHS Compliant : Electronics - Amazon.com
Amazon.com: Arduino Leonardo with Headers [A000057] : Electronics
Amazon.com: ELEGOO MEGA R3 Board ATmega 2560 + USB Cable Compatible with Arduino IDE Projects RoHS Compliant : Electronics
Amazon.com: KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project : Electronics
Amazon.com: KEYESTUDIO Mega Plus 2560 R3 Board for Arduino with Type-C USB Cable, 2A Output, More Powerful MCU Contoller Board : Electronics
Amazon.com: WWZMDiB UNO R3 ATmega328P microcontroller CH340G Improved Version Development Board Compatible with Arduino IDE with USB Cable and 2.54mm Straight Pin Header : Electronics
HWAYEH Mega 2560 PRO MINI 5V (Embed) CH340G ATmega2560-16AU with male pinheaders Compatible for arduino Mega 2560: Amazon.com: Industrial & Scientific