Here at SparkFun, we refuse to leave
Pro Micro - 5V/16MHz - DEV-11098 - SparkFun Electronics
Pro Micro & Fio v3 Hookup Guide by SparkFun Electronics Datasheet
SparkFun Qwiic Pro Micro - USB-C (ATmega32U4) - DEV-15795
Pro Micro - 3.3V/8MHz - DEV-12587 - SparkFun Electronics
SparkFun Qwiic Pro Micro - USB-C (ATmega32U4) - Elmwood Electronics
Arduino Pro 328 - 3.3V/8MHz - DEV-10914 - SparkFun Electronics
Pro Micro 3.3V USB Port Problem - Microcontrollers - Arduino Forum
DEV-12587 SparkFun Electronics
Arduino Pro Mini 328 - 3.3V/8MHz - DEV-11114 - SparkFun Electronics
Buy Pro Micro - 5V/16MHz - Atmega32u4 module - Botland - Robotic Shop
Description Features Documents Here at SparkFun, we refuse to leave 'good enough' alone. That's why we're adding to our line-up of Arduino-compatible
SparkFun Qwiic Pro Micro - USB-C (ATmega32U4)
DEV-12587 SparkFun Electronics
Pro Micro - 3.3V/8MHz (Sparkfun DEV-12587) Arduino-compatible