The MXR Mini Iso-Brick Power Supply (M239) delivers quiet, reliable, and fully isolated power in an ultra-compact design—perfect for smaller pedalboards or streamlined setups. Despite its small footprint, this unit provides professional-grade power for both analog and digital pedals.

Featuring five fully isolated outputs, the Mini Iso-Brick eliminates unwanted noise and ground loops, ensuring clean signal performance across your entire rig. Four outputs provide 9V at 300mA, while a fifth switchable output delivers either 9V or 18V at 800mA—ideal for high-current pedals or increased headroom.

Designed for versatility, this power supply can handle a wide range of pedals and even includes a splitter cable for powering additional units when needed. LED indicators make it easy to confirm connections at a glance, even on dark stages.

Compact, lightweight, and built with MXR’s rugged construction, the Mini Iso-Brick is the perfect solution for players who need dependable, noise-free power without taking up valuable pedalboard space.

• Model: MXR Mini Iso-Brick (M239)
• Type: Pedal Power Supply
• Outputs: 5 Fully Isolated Outputs
• 9V Outputs: (4) @ 300mA
• Switchable Output: (1) 9V or 18V @ 800mA
• Noise Reduction: Fully Isolated Outputs
• Indicators: LED Status Lights
• Power Supply: Includes 18V Adapter
• Compatibility: Supports Analog & Digital Pedals
• Enclosure: Compact, Lightweight Metal Housing

• 18V Power Adapter
• 5 Power Cables
• 1 Splitter Cable

• Fully isolated outputs eliminate noise and ground loops
• Compact size ideal for travel or small pedalboards
• High-current output supports demanding digital pedals
• Splitter cable allows expansion for additional pedals
• Durable MXR construction for reliable performance