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.

Product Specs

  • M239 Mini Iso-Brick Power Supply
  • Silver
  • 2018
Made In
  • China
Pedal Format
  • Mini

From the Price Guide

Reviews for the MXR M239 Mini Iso-Brick Power Supply
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  • Small, but mighty!

    Verified Purchase

    This was really an unexpected purchase - I had just gotten a power-hungry new delay and my old power supply couldn't handle it. I was looking for a power supply that didn't have a wall wart adapter, but this little unit had great specs, a small form factor and an excellent price, so I went for it. …

  • Solid unit

    Verified Purchase

    Great little unit, does the job! Haven't 'road tested' too much but my impression so far is that while other units obviously have more outputs, mA, etc., this unit is definitely a get-what-you-pay-for and maybe a little more kinda situation. Dig it!

  • Good, clean power supply

    Verified Purchase

    A great alternative to the larger (but still tiny) iso brick. The power adapter that comes with this unit is MUCH sturdier than the adapter that comes with the normal iso. The strain relief and the chord itself are just way nicer. Other poster must have had a faulty unit - I'm using all of the out…

  • Smoking! Literally...

    Bought one of these brand new (major retailer, not on here) and after plugging in 4 pedals (all 9 volt), and strumming a few chords, it popped and started smoking. My pedals survived (so there's that), but I can't recommend this one.