3.3V/5V MB102 Breadboard Power Supply Module Compatible With Arduino by Atomic Market For MB102 bread board, two way independent control, can be switched to 0V, 3.3V, 5V Breadboard Power Supply Module Fit for MB102 Breadboard Input Voltage : DC 6.5-9V;Output Voltage : DC 3.3V 5V; Input do not exceed 500mA On-board Two sets of 3.3V, 5V DC output pins, facilitate the external leads High Quality Atomic Market Product