DEV-12640 - SparkFun, Pro Micro 5V 16MHz

ATMega 32U4 running at 5V/16MHz Supported under Arduino IDE v1.0.1 On-Board micro-USB connector for programming 4 x 10-bit ADC pins 12 x Digital I/Os

SparkFun Pro Micro - 5V/16MHz

Powering the Pro Micro Leonardo - General Electronics - Arduino Forum

Pro Micro 5V/16MHz Arduino Compatible Microcontroller - RobotShop

Pro Micro - USB-C - 5V/16MHz - ATmega32U4 - SparkFun DEV-15795 Botland - Robotic Shop

Pro Micro - 5V/16MHz from MindKits New Zealand

Arduino Pro Micro 5V 16MHz [Generic] :: Micro JPM

Nettigo: Larduino Mini - faster Arduino Pro Mini clone [A55982LAR]

Buy Pro Micro - 5V/16MHz - Atmega32u4 module - Botland - Robotic Shop

Arduino Pro Micro 5V 16MHz [Generic] :: Micro JPM

Pro Micro 5V/16MHz — スイッチサイエンス

DEV-12640 SparkFun Electronics, Development Boards, Kits, Programmers