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MXR Mini Iso-Brick Power Supply

A compact, noiseless power supply brick is here to cover all your pedal powering and light travel needs. MXR's Mini Iso-Brick Power Supply brings a ton of energy in one small pedal.


(10 reviews)


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MSRP: Old Price $142.84 Discounted Price $99.99 Save : $42.85 (30%)
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MSRP: Old Price $142.84 Discounted Price $99.99 Save : $42.85 (30%)
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MXR brings you an efficient solution to all your pedal powering needs. Featuring noiseless DC power, this pedal is capable of supplying multiple types of pedals to help you meet your performance needs with one very compact package.

Noiseless DC Power
The name of the game with power supplies these days is noiseless. MXR has that down. This brick is noise free, meaning there's no interference between pedal power outputs, keeping your rig sounding clean. No fuzz, no buzz, no worries.  

Capable of Supplying Multiple Types of Pedals
The Mini Iso-Brick has five distinct outputs, capable of handling either negative or positive grounds. Four of the outputs, located on the long side of this rectangular brick, supply 9 volts at 300mA. A fifth can be switched between either 9 volts or 18 volts, at 800mA. There's even a splitter cable included which converts one output to handle two pedals, as long as they use the same voltage and do not exceed the output's rating. With plenty of power to go around, the MXR Mini Iso-Brick can handle almost any pedalboard setup.

Very Compact Package
The MXR Mini Iso-Brick gives you a lot for a little. Despite all its powering ability, it's about the size of a candy bar. You'll have no trouble fitting this brick on any pedalboard, no matter how light you're traveling. It even has LEDs to let you know your connections are intact.


  • Multi-Pedal Power Supply
  • Four 9 Volt Outputs
  • One Switchable 9 or 18 Volt Output
  • Splitter Cable to Connect Two Compatible Pedals to One Input
  • LED Indicators Assure Connections are Solid
  • Compact Solid Brick Design
  • Splitter Cable Included

Get your MXR Mini Iso-Brick Power Supply today at the guaranteed lowest price from Sam Ash with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Power Supply
  • Splitter Cable



Works like a charm



Easy purchase.


Great product. Very helpful staff.





great idea. Should have bought 2 of them! very convenient



Small but powerful


Small size makes it great for pedalboard organization.



Works perfectly


Works great, I have it 4 stars purely because I with it had 2 18volt ports instead of 1



Best mini power supply


So tiny, 300mA per output (important!) great lil thingy. It's so cuuuuute.



Perfect compact power unit.


If you know exactly how many pedals you are going to use and the voltage you are going to need, and if you stick to that plan then this is the power unit you need. Compact with 4 9v and 1 16v outputs. Exactly the amount of pedals I use. Or even if you need extra power for a big pedal board. This will give you and deliver steady stable power all the way.



Simply silent.


The Isolated power at this price point is great for a small board. I use it with a Mooer Power Bank S10, rechargable battery that has a 18 volt output to power the Mini Iso wirelessly and the Board is dead quiet, no noise.



Highly recommend


Easy to use, perfect for a starter pedal board, or to expand. Quality build



BIG POWER, small form!


I was astonished that MXR managed to squeeze such high current out of such a small form factor. I zip tied this little guy under my board, and in minutes my entire board was powered up. That includes some power intense devices like Strymon Chorus etc. The packaging makes for a quality presentation when you unwrap it. Overall, this is a steal at its current price and small form factor!



Mini Iso-Brick Power Supply

4.9 11


Inputs 1 x INPUT Jack 18V
Outputs 4 x 9V DC Outputs, 1 x Switchable 9V/18V DC Output
Battery Power No
Power Supply Type 9V/18V
Power Supply Included Yes
Model M239
Warranty Info:

The manufacturer's warranty covers parts for one year and labor for one year from date of purchase. The warranty excludes damage from misuse, abuse, and contains other exclusions.

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