The Arduino® Micro is one of the smallest boards in the Arduino family, yet it is still powerful. No need to worry about soldering on male headers
The Arduino Micro is a microcontroller board based on the ATmega32u4 (datasheet) developed in conjunction with Adafruit. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs) a 16 MHz crystal oscillator a micro USB connection an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a micro USB cable to get started.
Arduino 5V Micro with Headers
PRO Micro Atmega32u4 5V / 16MHz Mini MCU Leonardo Board for Arduino - China PRO Micro, Atmega
Arduino Micro Microcontroller A000053
I2C Shield for Arduino Micro with I2C Expansion Port - NCD Store
New Pro Micro for arduino ATmega32U4 5V/16MHz Module with 2 row pin header For Leonardo
Arduino MICRO 5V - Micro Center
Pro Micro & Fio V3 Hookup Guide - SparkFun Learn
Arduino Micro d17 input_pullup doesn't work - Project Guidance - Arduino Forum
Pro Micro: Arduino Pinout - tinkerBOY
Arduino Micro Microcontroller A000053
The Micro is a microcontroller board based on the ATmega32U4 (datasheet), developed in conjunction with Adafruit. It has 20 digital input/output pins
Arduino Micro without headers
The Micro is a microcontroller board based on the ATmega32U4 (datasheet), developed in conjunction with Adafruit. It has 20 digital input/output pins
Arduino Micro with Headers [A000053]
Cytron Arduino Pro Micro Compatible w/ Pre-soldered Headers - RobotShop
Addicore Pro Micro ATmega32U4 (Arduino Clone)
Arduino, Micro Development Board - RS Components Vietnam