• Support most of the common sized breadboard, use friendly!
  • two independent support channels, left and right.
  • Save more spaces on the breadboard for you!
  • Support 3.3V/5V
  • Concave design will not waste any space on the breadboard.
  • Support 3.5mm DC 12-7V power input or USB 5V input.

Schematic on this item available here.

Additional information

Weight 0.01 kg

6 reviews for Breadboard-Friendly Power Supply Module 5V/3.3V

  1. 5 out of 5


    This is one of my simply can’t work without devices persect in that either rail can be 5V, 3.3V or what ever just remove the shunt connector and add a jumper to… 5V for servo’s, 1.8 V for sensors or a separate (My favorite perhaps noisy switcher for those higher current loads while keeping a clean 5 or 3.3V for the signal processing from the sensor. I use one that has plus and minus power connections on either rail for Op=Amps and that circuitry that requires bi-polar power.


  2. 5 out of 5

    liuferdinand (verified owner)

    This compact U-shaped module let some pin holes open which usually covered in other model, effectively increase size of workable area in attached breadboard compared to other model.

  3. 5 out of 5

    will nexii (verified owner)

    I don’t think I’ll be putting this away in a box anytime soon. This board is quickly becoming a staple element when I’m working on a breadboard. The most useful feature is being able to have one side @5V while keeping the other side @3.3V, this board saves time because it’s a no-brainer. Not to mention highly versatile allowing supply from a dc jack or from mini-usb. The board I received differs from the picture shown in that mine is on a red pcb which I prefer. It also differs as mine has no jumpers to move or large on/off switches, they’ve been replaced with a pair of smd switches to select whether each side is on or off, and whether each side should be @ 5V or 3.3V. And as another reviewer mentioned the crescent shape of the board keeps the power supply from covering over any breadboard pins besides those in the power rail areas that it uses. Great quality as well and a very clean appearance.

  4. 1 out of 5

    dhouston (verified owner)

    It doesn’t fit any of my many breadboards.

  5. Chao (store manager)

    May have -+0.5mm bias, you can bend the pins a little bit to let it fit in, should be simple.

  6. 1 out of 5

    dhouston (verified owner)


    All of my many breadboards accumulated over the past 20 years from multiple vendors here in the USA are1/4″ (about 6.4mm) wider than those you picture so the power pins only align on one side of the breadboard making it useless for mixed voltage testing.

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