Skip to main content
MXR® DC Brick™ Power Supply
MXR

MXR® DC Brick™ Power Supply

Bottom line: The MXR® DC Brick™ Power Supply: Ten outputs total: eight 9V plus two 18V on a single brick; main trade-off: per-output current ratings not given in the listing.

Check price on Amazon

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Check price on Amazon → Compare to similar power supplies & cables

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Ten outputs total: eight 9V plus two 18V on a single brick
  • ✓ 18V outputs give headroom for higher-voltage devices
  • ✓ Red LED on each 9V output flags a short right away
  • ✓ Rated to handle twice the power of the original DC Brick

Cons

  • ✗ Per-output current ratings not given in the listing
  • ✗ No 12V or variable-voltage outputs listed
  • ✗ Short-indicator LEDs cover the 9V outputs only, not the 18V pair
  • ✗ Output isolation not specified in the product listing

Manufacturer description

The MXR DC Brick Power Supply (model M237) gives you one central power source for a board full of 9V and 18V gear. It has ten outputs: eight at 9V and two at 18V. That covers standard 9V effects and the higher-voltage units that need more headroom, without a separate adapter for each device. MXR says this version handles twice the power of the original DC Brick, so you have more margin as your rig grows. Each 9V output has its own red LED that lights up if that output shorts. You can see at a glance which cable or device is causing trouble instead of unplugging everything to find the fault…

Related Products

Other products in this category you may like:

SpecPicks Verdict

SpecPicks scored MXR® DC Brick™ Power Supply using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. MXR's power supplies & cables lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies & cables of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How many outputs does the MXR DC Brick M237 have?

It has ten outputs: eight 9V outputs and two 18V outputs.

Can the MXR DC Brick power 18V devices?

Yes. Two of its ten outputs supply 18V. The other eight supply 9V.

What do the red LEDs on the DC Brick do?

Each 9V output has a red LED that lights up if that output shorts, so you can quickly find the faulty cable or device.

How does this compare to the original MXR DC Brick?

MXR says the M237 handles twice the power of the original DC Brick. Check the product listing for exact current ratings per output.

Key Features

  • Handles twice the power of the original DC Brick
  • Eight 9v outputs and two 18v outputs
  • Each 9v output has a red LED that illuminates in case of a short
  • Country of Origin: United States
  • Model Number: M237

Full Specifications

BrandMXR
ColorSilver
Amperage9 milliamps
MaterialMetal
Unit Count1 Count
Form Factorbrick
Model NumberM237
Maximum Power144 watts
Connector Type2.1 mm barrel plug (centre positive)
Item Type NameMXR DC Brick Power Supply
Output Current72 milliamps
Output Voltage9 volts_of_direct_current
Output Wattage144 watts
Item Dimensions9.2 x 4.3 x 2.7 inches
Mfr Part Number11237000001
Country of OriginUnited States
Specification MetCE, FCC
Enclosure MaterialMetal
Connector Type Used on Cable2.1 mm barrel plug (centre positive)
Global Trade Identification Number00710137057777

Ready to buy?

MXR® DC Brick™ Power Supply is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

Related Power Supplies & Cables

Keep exploring SpecPicks

Other buying guides

Browse the catalog

Editorial

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →
MXR® DC Brick™ Power Supply
View on Amazon →