Top view of ShillehTek MB102 breadboard power supply with USB port and jumper pins

MB102 Breadboard Power Supply Module 3.3V/5V for Arduino

Name: MB102 Breadboard Power Supply Module 3.3V/5V for Arduino
Brand: ShillehTek
SKU: LC-ICRP-81MP
Price: 6.99 USD
Availability: InStock

SKU LC-ICRP-81MP

$6.99 USD Shipping & tax calculated at checkout

In stock· Order by 3pm ET and it ships today

Breadboard power module that provides selectable 3.3V and 5V rails for clean Arduino and sensor prototyping.

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Overview

Product Overview

The ShillehTek MB102 Breadboard Power Supply Module makes it easy to power a standard MB102-style breadboard with stable 3.3V and 5V rails for Arduino-compatible projects, sensors, and quick prototypes. Instead of juggling loose jumper wires from a USB cable or a bench supply, you plug this module into the breadboard power header and select 3.3V or 5V per rail with simple jumpers or switches (depending on the version). It is perfect for powering sensors, small microcontrollers, and test circuits cleanly while you develop and debug.

Questions & answers

Frequently asked questions

Does this MB102 module work with Arduino projects?

Yes. It is intended for Arduino-compatible breadboard projects, sensors, small microcontrollers, and quick prototypes that use a standard MB102-style solderless breadboard power layout.

How do I set up this breadboard power module?

Plug the module into the breadboard power header, then select the desired rail voltage using the onboard jumpers or switches, depending on the version. It is designed for quick setup without running loose power jumper wires from another supply.

What voltages does the MB102 power module provide?

The module provides selectable 3.3V and 5V breadboard rails. Each rail can be set with simple jumpers or switches, depending on the version, so confirm the selected voltage before connecting sensors or microcontrollers.

What projects is this power module best for?

It is best for powering sensors, small microcontrollers, and test circuits while building or debugging on a solderless breadboard. It keeps the breadboard rails organized compared with using loose USB or bench-supply jumper wires.

Why is my breadboard circuit not powering correctly?

Check that the module is fully seated on the breadboard power header, the rail selectors are set correctly, and the input power source is connected. Also verify that your circuit’s positive and ground connections match the breadboard rail layout.

Have other questions?

Chat with our US-based team — we usually reply fast.

What's included