RPI BRD Adapter is a Raspberry Pi GPIO Adapter which can be directly plugged into the breadboard and its design is set based on the spacing of the breadboard socket fully compatible with the breadboard therefore through our RPI BRD Adapter Raspberry Pi driving various modules on the breadboard could be achieved. Note: When RPI BRD Adapter connected with Raspberry Pi GPIO please make sure their pins are corresponding with each other. Parameter: - Compatible with the breadboard - 3.3V or 5V selectable - Unique exterior design more convenient for your use