1PCS Pro Micro 5V/16MHz Leonardo ATMega32U4 Board Micro USB
£7.18
With 16Mhz crystal. he USB port is also available in single row pin strip to connect a USB cable (Host) to connect other Devices. Pin Size : 3cm X 1.2cm / 1.18"X0.47". Module Size : 3.4cm x 1.8cm/1.33"X0.7".