Leonardo Pro Micro ATmega32U4 Arduino IDE 1.0.3 Bootloader replace Pro Mini

With 16Mhz crystal
Power supply jumper to connect external 5V.
he USB port is also available in single row pin strip to connect a USB cable (Host) to connect other Devices.
Color : Blue
Module Size : 3.4cm x 1.8cm/1.33»X0.7»
Pin Size : 3cm X 1.2cm / 1.18»X0.47»
Supported under Arduino IDE v1.0.5