Description This is a 3.3V/5V MB102 Breadboard Power Supply Module which provides a dual 5 V and 3.3 V power rails and has a multi-purpose female USB socket. The 3.3V/5V MB102 Breadboard Power Supply Module securely fits in a standard 400 or 800 tie points breadboard it also features reverse polarity protection, the module can take 6.5V to 12V input and can produce 3.3V and 5V. The module can also output 5V on USB connector or input through the USB connector. It’s a must-have product for experimenters those have to test/prototype electronic circuits on the breadboard. Pinout Diagram: Features : Breadboard power supply module, compatible with 5V, 3.3V. Apply to MB102 breadboard Fluctuation two road independent control can switch over to 0 V, 3.3 V, 5 V On-board two groups of 3.3V, 5V DC output plug pin, convenient external lead use. Package Includes : 1 x MB102 Breadboard Power Supply Module