Best quality. Under the support of the Arduino IDE V1.0.1. The board of directors on the micro USB interface programming.
1-10PCS Type-C USB Pro Micro ATmega32U4 Development Board for Arduino 16MHz 5V
Pro Micro Atmega32U4 5V 16MHz Board Micro USB Pro Micro Development Board Module
Pro Micro ATMEGA32U4 5V 16MHz Free Pins Arduino Leonardo Pro Micro Compatible
Pro Micro ATmega32U4 16MHz 5V Micro USB Micro-Controller Board for Arduino
3pcs Pro Micro ATmega32U4 5V 16MHz Micro USB Development Board Module Microcontroller for Arduino