USB adapter for contact plate (male plug)

USB Mini-B Connector Breakout Board

PRT-00114 - Breadboard Power Supply 5V/3.3V

Board with USB-Type A connector (female) with USB pins connected to the goldpin connector (2.54mm)

5.0V Power Supply Module Board with Red Indicators, AMS1117-5.0V, RoHS

This simple board breaks out all five pins of a USB Micro-B connector to a 0.1″ pin spacing that is compatible with standard perfboards, solderless breadboards, and 0.1″ connectors. Pololu 2586

Board with goldpin connectors designed for micro:bit sets. It enables connection of a micro: bit set and attaching a module with connectors, eg to a contact plate. Adafruit 3695

Extension module with a breadboard designed for micro:bit. There are male and female connectors with all IO pins. A great solution for prototyping. DFRobot MBT0009

3.3V Power Supply Module Board with Red Indicators, AMS1117-3.3V, RoHS

Breadboard power supply module, 5V, 3.3V, RoHS

Arduino and Breadboard Holder. DEV-11235