---
product_id: 100570557
title: "MXR M239 ISO Brick Mini Power Supply"
brand: "mxr"
price: "$558.89"
currency: USD
in_stock: true
reviews_count: 13
category: "Mxr"
url: https://www.desertcart.ec/products/100570557-mxr-m239-iso-brick-mini-power-supply
store_origin: EC
region: Ecuador
---

# 5 isolated outputs for noise-free power 4x 9V @ 300mA + 1x 9/18V @ 800mA versatile output Compact, rugged design fits under Pedaltrain boards MXR M239 ISO Brick Mini Power Supply

**Brand:** mxr
**Price:** $558.89
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your pedalboard like a pro—compact, quiet, and unstoppable!

## Quick Answers

- **What is this?** MXR M239 ISO Brick Mini Power Supply by mxr
- **How much does it cost?** $558.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/100570557-mxr-m239-iso-brick-mini-power-supply)

## Best For

- mxr enthusiasts

## Why This Product

- Trusted mxr brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Expandable Setup:** Use included splitter cables to power up to 10 pedals without compromise.
- • **Instant Status Feedback:** Built-in LEDs keep you informed of solid connections on dark stages.
- • **Compact Gig-Ready Design:** Slim, tank-like housing fits snugly under your pedalboard for ultimate portability.
- • **Silent Power, Zero Noise:** Fully isolated outputs eliminate ground loop hum for pristine tone.
- • **Versatile Voltage Options:** Switchable 9V/18V output powers both analog and digital pedals effortlessly.

## Overview

The MXR M239 ISO Brick Mini Power Supply delivers five fully isolated outputs—four at 9V/300mA and one switchable 9V or 18V/800mA—ensuring noise-free, reliable power for a wide range of guitar pedals. Its compact, rugged design fits perfectly under pedalboards like the Pedaltrain Metro, making it ideal for both travel and gigging musicians. With included splitter cables and LED indicators, it offers flexible expansion and real-time connection status, empowering players to build a clean, professional pedal setup without the bulk or hum.

## Description

The Mini Iso-Brick Power Supply supplies quiet, noise-free DC power to wide range of pedal types while taking up less space than a candy bar. Whether you need a space-saving solution for your downsized travel board or you just need to power a small, carefully curated selection of tried-and-true staples, this little box has what you need. First, let’s talk outputs. The Mini Iso-Brick Power Supply has five, and each is fully isolated to eliminate obnoxious, gig-ending ground loop noise. Four of the outputs supply 9 volts of power at 300mA, while a fifth can be set to provide either 9 volts or 18 volts at 800mA depending on your needs. With a generous amount of current on tap and the ability to handle both negative and positive grounds, these outputs will accommodate almost any pedal, analog or digital. And don’t let the five outputs restrict you—if you need to add an extra pedal, the Mini Iso-Brick Power Supply has you covered. It comes with a splitter cable that can be used to connect two pedals to a single output, provided they require the same voltage and you don’t exceed the output’s current rating. You can do this with all of the outputs simultaneously—just purchase the extra cables to do so. Finally, troubleshooting can be a hassle on dark stages, so the Mini Iso-Brick Power Supply comes equipped with LEDs to let you know that all your connections are solid. Combine that with a lightweight housing that's built like a tank, and you can step on stage with confidence that your pedalboard will stay powered from gig to gig.

Review: Very happy! - Low noise and so small! Greta quality! No issues! :)))
Review: Absolutely brilliant and fits under my Pedaltrain really well - I bought this because I heard it fits nicely under a PedalTrain Metro board and it does. So well, in fact, that after I bought the first one, I bought another immediately after so I can power up to 12 pedals. Feels really robust, is really simple to use. I'd never realised that a few of my pedals (e.g. my Boss RV-5) weren't getting enough power. The only downside for me is that the power cord has a bigger plastic bit on it that feels like it's always in the wrong place for my pedal board and that it might get crunched under the weight, but that's up to me to affix it properly in a way that it won't.

## Features

- Input 18V: At 2 Amps regulated supply (positive barrel negative centre 5.5mm x 2.1mm plug)
- Number of items: 1.0
- Model Number: M239
- Package Weight: 0.612 kilograms

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KPM6QHT |
| Best Sellers Rank | 8,428 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 70 in Guitar Pedal Power Supplies |
| Guaranteed software updates until | unknown |
| Item model number | M239 |
| Manufacturer | MXR |
| Product Dimensions | 27.4 x 12.4 x 8.9 cm; 70 g |

## Product Details

- **Brand:** MXR
- **Colour:** black
- **Connector type:** 20+4 Pin ATX
- **Item weight:** 70 Grams
- **Material:** Lightweight and durable material, possibly aluminum or high-quality plastic

## Images

![MXR M239 ISO Brick Mini Power Supply - Image 1](https://m.media-amazon.com/images/I/71HhNetB+yL.jpg)
![MXR M239 ISO Brick Mini Power Supply - Image 2](https://m.media-amazon.com/images/I/71MK2igBE5L.jpg)
![MXR M239 ISO Brick Mini Power Supply - Image 3](https://m.media-amazon.com/images/I/71TcBt4DIPL.jpg)
![MXR M239 ISO Brick Mini Power Supply - Image 4](https://m.media-amazon.com/images/I/71V4aKKBPEL.jpg)
![MXR M239 ISO Brick Mini Power Supply - Image 5](https://m.media-amazon.com/images/I/71rLkdaz-fL.jpg)

## Questions & Answers

**Q: Is this product just the brick itself or does it come with all the leads and cables?**
A: Item comes with all cables and power supply.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very happy!
*by D***Y on 12 May 2025*

Low noise and so small! Greta quality! No issues! :)))

### ⭐⭐⭐⭐⭐ Absolutely brilliant and fits under my Pedaltrain really well
*by M***O on 26 February 2024*

I bought this because I heard it fits nicely under a PedalTrain Metro board and it does. So well, in fact, that after I bought the first one, I bought another immediately after so I can power up to 12 pedals. Feels really robust, is really simple to use. I'd never realised that a few of my pedals (e.g. my Boss RV-5) weren't getting enough power. The only downside for me is that the power cord has a bigger plastic bit on it that feels like it's always in the wrong place for my pedal board and that it might get crunched under the weight, but that's up to me to affix it properly in a way that it won't.

### ⭐⭐⭐⭐⭐ Great Quality
*by S***R on 20 October 2021*

A really well made piece of kit from MXR,compact,light but sturdy.It works really well and is silent in use even with high gain pedals............highly recommended.

## Frequently Bought Together

- MXR Mini Iso-Brick Power Supply Guitar Effects Pedal
- MXR Patch Cable 6 in|15 cm - 3 Pack (3PDCP06)
- Mr.Power Guitar Effect Pedal DC Cable 5.5 x 2.1mm Power Lead/Cord, Male to Male 24AWG Connector Plug Wire Adapter (16 inch, 8 Pack)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-27*