If you’re searching for the 14 best Eurorack power supplies for reliable and safe operation in 2025, I’ve got you covered. I recommend options like Behringer’s CP1A for affordability, the MicroZEUS for portability, and 4MS Row Power 45 for expansion needs. High-current supplies from Synthrotek and custom DIY kits also guarantee stability and noise reduction. Keep in mind safety features and compatibility. Stick around, and you’ll discover the top picks that suit every setup and budget.
Key Takeaways
- Top Eurorack power supplies like Behringer CP1A and MicroZEUS offer reliable, noise-free power with built-in protections for safety.
- High-current options such as Power UP support demanding modules with stable, clean power delivery.
- Safety features including overload, short circuit, and over-voltage protections ensure system reliability.
- Compatibility and easy installation are key, with models designed to fit various case sizes and provide secure connections.
- Budget-friendly DIY kits and advanced units balance cost, performance, and long-term durability for different setups.
Behringer CP1A Power Supply Module for Eurorack System
If you’re looking for an affordable, reliable power supply for your Eurorack setup, the Behringer CP1A is an excellent choice. It’s compact at 4HP and delivers solid performance with 1000mA on +12V and -12V, plus 500mA on 5V. Designed for various Eurorack systems, it supports up to 16 modules with two flying bus boards. Users praise its low noise, efficient power, and affordability, making it ideal for both small and large setups. It arrives with everything needed, including a cable, voltage converter, and power switch. Overall, it’s a dependable, cost-effective option that’s popular among synth enthusiasts.
Best For: budget-conscious Eurorack enthusiasts seeking a reliable, compact power supply capable of supporting both small and large modular systems.
Pros:
- Affordable price point under $100 offering excellent value
- High current output with 1000mA on ±12V and 500mA on 5V for versatile powering needs
- Supports up to 16 modules with two flying bus boards, suitable for various system sizes
Cons:
- Some users have reported initial units arriving DOA or experiencing brief power issues
- Limited to Eurorack systems, less suitable for non-modular applications
- Slightly larger dimensions may be restrictive for ultra-compact setups
USB Power Kit – Mini Eurorack Power Supply DIY Kit (Recom)
The USB Power Kit – Mini Eurorack Power Supply DIY Kit (Recom) is ideal for small, portable Eurorack systems, testing setups, or DIY projects where space is limited. Its compact PCB (50mm x 28mm) fits easily into Bus Cheeks systems, small enclosures, or workbenches. It supplies power through a USB wall wart, battery pack, or car cigarette lighter adapter—though not recommended for computer USB ports. Designed to power single modules or multiple modules via a flying bus cable, it features LED indicators for +12V, -12V, and +5V rails, ensuring easier monitoring. Assembly is straightforward, making it perfect for DIY enthusiasts seeking reliable, minimal power solutions.
Best For: DIY electronics enthusiasts and small Eurorack system users seeking a compact, portable power solution for testing and small-scale modular setups.
Pros:
- Compact size (50mm x 28mm) fits easily into small enclosures and workbenches
- Multiple power options via USB wall wart, battery pack, or car adapter for versatile use
- LED indicators for +12V, -12V, and +5V rails facilitate easy monitoring of power status
Cons:
- Not suitable for high-current applications or powering large systems
- Limited current capacity on the 5V rail, which may cause voltage sag under heavy loads
- Not recommended for direct connection to computer USB ports, requiring external power sources
USB Power – Mini Eurorack Power Supply (Recom, header/plug)
Designed for small, portable Eurorack systems, the USB Power Mini Eurorack Power Supply (Recom, header/plug) offers a compact and lightweight solution that’s perfect for testing, experimenting, or running single modules. It connects easily to USB power sources like wall adapters, batteries, or car chargers, providing +12V, -12V, and +5V rails with noise filtering for cleaner output. Its small PCB fits well in enclosures or bus cheek systems, making setup simple. While ideal for portable and minimal setups, it’s best suited for powering individual modules or small arrays, as its current limits may not support larger systems.
Best For: musicians, hobbyists, and portable setup enthusiasts seeking a compact, lightweight power solution for small Eurorack systems and testing environments.
Pros:
- Small PCB footprint fits easily in compact enclosures and bus cheek systems
- Compatible with various USB power sources such as wall adapters, batteries, and car chargers
- Provides noise-filtered +12V, -12V, and +5V rails suitable for small modular setups
Cons:
- Limited current capacity may be insufficient for larger or more power-hungry modules
- Not recommended for use with computer USB ports, which may lack sufficient power stability
- Designed primarily for small, portable systems, limiting its use for larger Eurorack configurations
MicroZEUS Eurorack Power Supply L
The MicroZEUS Eurorack Power Supply L stands out as an ideal choice for musicians seeking a compact yet powerful power solution. Despite its small size—just 3 by 8 by 10 inches—it delivers impressive power, with +12V at 2000mA, -12V at 500mA, and +5V at 170mA. Featuring two 14-inch ribbon bus boards with five connectors each, it ensures efficient power distribution across your modules. Weighing only 4.6 ounces, it’s lightweight and portable. Manufactured by Tiptop Audio, it has earned praise for reliability, with a strong customer rating. Plus, its compact design makes it perfect for tight eurorack setups without sacrificing performance.
Best For: musicians and modular synth enthusiasts seeking a compact, reliable power supply for their eurorack setup without sacrificing power output or efficiency.
Pros:
- Compact size (3 x 8 x 10 inches) fits easily into tight eurorack cases
- High power output with +12V at 2000mA, supporting demanding modules
- Includes two 14-inch ribbon bus boards with five connectors each for efficient power distribution
Cons:
- Weighs only 4.6 ounces, which may raise concerns about durability in rough handling
- Requires an appropriately matched power brick to meet mA needs, adding to setup considerations
- No mention of built-in features like adjustable voltage or advanced protections
4MS Row Power 45 Power Solution for Eurorack Systems – Black
If you’re building a modular synth setup that requires reliable power distribution, the 4MS Row Power 45 Power Solution is an excellent choice. It can power up to three Eurorack rows or Pods and features two daisy-chain jacks, letting you expand easily. It’s compatible with common laptop-style power bricks, supporting 3 to 5 rows. The system includes an on/off switch for quick power cutoff without disrupting the entire chain. Its ultra-clean regulation stabilizes each rail independently, ensuring clean power for your modules. Designed to run cool and stay efficient, it’s a compact, black unit that fits seamlessly into any Eurorack setup.
Best For: musicians and modular synth enthusiasts seeking a reliable, efficient power solution for their Eurorack systems that can easily support multiple rows and expand their setup.
Pros:
- Supports up to three Eurorack rows or Pods with easy daisy-chaining capability
- Ultra Clean regulation stabilizes each rail independently for clean power delivery
- Compact and cool-running design ensures efficient operation without overheating
Cons:
- Compatibility limited to laptop-style power bricks, which may not suit all setups
- Does not include power bricks; users need to supply their own compatible power source
- May require additional accessories for extensive modular configurations beyond three rows
Power UP Kit – Eurorack Power Supply Module Kit by Synthrotek
For those building a high-powered Eurorack system, the Power UP Kit by Synthrotek stands out as an excellent choice due to its impressive 4A output on both the +12V and -12V rails. It provides substantial power for demanding modules, including a 1.5A +5V rail. The kit requires assembly, with clear instructions available online, and uses safety-keyed connectors to prevent misconnection. It’s compatible only with two specific 12V, 5A power bricks, ensuring system safety and warranty coverage. While it offers high power density, some users report mixed reviews, so proper assembly and matching power supplies are essential for reliable operation.
Best For: musicians and synthesizer enthusiasts building high-powered Eurorack systems who require a reliable, high-current power supply with safety features and detailed assembly instructions.
Pros:
- Provides up to 4A on both +12V and -12V rails, supporting demanding modules
- Comes with safety-keyed connectors to prevent incorrect wiring
- Includes a 1.5A +5V rail for powering additional devices like smartphones or controllers
Cons:
- Requires assembly with online instructions, which may be challenging for some users
- Only compatible with specific 12V, 5A power bricks, limiting flexibility
- Mixed user reviews suggest potential variability in performance or ease of setup
Power UP – Eurorack Power Supply Module by Synthrotek
Power UP by Synthrotek stands out as an ideal choice for advanced Eurorack users who need reliable, high-current power. This module delivers up to 4A on both the +12V and -12V rails, ensuring your system gets the power it demands. Its simple dual brick design maximizes efficiency and keeps costs manageable. With two 16-pin Eurorack connectors and a USB jack, it offers versatile connections and extra functionality. Just remember, it requires two isolated 12V 5A power bricks for proper operation—using anything else can void the warranty. Overall, Power UP provides robust power suitable for demanding modular setups in 2025.
Best For: advanced Eurorack users and modular synthesizer enthusiasts who require high-current, reliable power supplies for demanding setups.
Pros:
- Delivers up to 4A on both +12V and -12V rails, supporting power-hungry modules
- Simple dual brick design maximizes efficiency and cost-effectiveness
- Includes versatile connectivity options such as two 16-pin Eurorack connectors and a USB jack
Cons:
- Requires two isolated 12V 5A power bricks for proper operation, which may add to setup complexity
- Using alternative power bricks voids the warranty
- May not be compatible with certain analog oscillators due to high power demands
20 Connection Eurorack Power BusBoard
The Connection Eurorack Power BusBoard is an ideal choice for modular synthesizer enthusiasts who need a reliable and organized power distribution solution. It fits perfectly in an 84HP case and offers twenty 16-pin shrouded safety connectors, making wiring straightforward. With four voltage channels—-12V, 0V, +5V, and +12V—and a built-in +5V regulator, it ensures stable power delivery. The design includes noise-reducing capacitors and screw terminals to minimize hum. Its compact size and secure mounting options make installation easy, providing a clean, dependable power source that keeps your modular system running smoothly and safely.
Best For: modular synthesizer enthusiasts and audio professionals seeking a reliable, organized power distribution solution for 84HP Eurorack systems.
Pros:
- Provides twenty 16-pin shrouded safety connectors for easy wiring.
- Features four voltage channels with a built-in +5V regulator for stable power.
- Includes noise-reducing capacitors and screw terminals to minimize hum and ensure clean signals.
Cons:
- Limited to 84HP cases, may not fit larger setups.
- Slightly heavier at 9 ounces, which could impact portable configurations.
- Only compatible with systems requiring the specific 20 connection bus, limiting versatility with other power standards.
Mini Power Distribution Board Kit – Eurorack Bus Board Kit
If you’re assembling a Eurorack system and need a reliable way to distribute power, the Mini Power Distribution Board Kit is an excellent choice. It features 17 Eurorack power connections, all keyed for safety, ensuring proper and secure connections. Compatible with Synthrotek power supplies, it uses Molex connectors for straightforward installation. You can expand your setup by daisy-chaining boards with additional Molex cables (not included). The kit comes with spacers and wood screws for easy, secure mounting inside your case. Its compact PCB measures 1 3/8 x 9 inches, making it a practical and versatile solution for organized power distribution.
Best For: musicians, synthesizer enthusiasts, and DIY audio builders seeking a reliable, organized power distribution solution for their Eurorack systems.
Pros:
- Provides 17 keyed Eurorack power connections for safe and secure setup
- Compatible with Synthrotek power supplies and uses Molex connectors for easy installation
- Includes mounting spacers and screws for straightforward and stable mounting inside cases
Cons:
- Daisy-chaining requires additional Molex cables, which are not included
- PCB size may be limited for larger Eurorack configurations
- Only compatible with specific power supplies and connector types, limiting flexibility
Power Pak DIY Kit – Eurorack to Tabletop Power Converter Kit
For anyone looking to create a compact and versatile power setup, the Power Pak DIY Kit is an ideal choice. This kit allows you to convert Eurorack case power into 9V, 12V, and 5V USB outputs, making it perfect for powering guitar pedals, drum machines, controllers, USB lights, and smartphones. It eliminates bulky power bricks, offering a streamlined, portable solution for tabletop setups. Plus, it includes safety features like polarity and over-current protection, ensuring your devices stay safe. With just a few components and two DC cables, you can build a reliable power source tailored to your needs, enhancing both safety and convenience.
Best For: musicians, audio enthusiasts, and DIYers seeking a custom, portable power solution for their tabletop and electronic devices.
Pros:
- Converts Eurorack power to multiple voltages including 5V USB, 9V, and 12V for versatile device compatibility
- Compact and lightweight design eliminates the need for bulky power bricks, ideal for portable setups
- Includes safety features like polarity and over-current protection to safeguard connected devices
Cons:
- Requires DIY assembly, which may be challenging for beginners without technical experience
- Limited to devices compatible with the specified voltage outputs, not suitable for all electronics
- May need additional cables or adapters for specific device connections not included in the kit
Replacement AC Power Adapter for Behringer Mixers and Equipment
When replacing the power supply for Behringer mixers and equipment, this AC adapter stands out as a reliable choice, especially for models like the XENYX series and Q502USB. It’s compatible with various Eurorack mixers such as MXVL3, MX602A, UB502, UB802, and others, serving as an excellent backup or replacement. The adapter delivers a stable 18.5VAC at 500mA, with features like overcurrent, overvoltage, and short circuit protection for safe operation. Its design ensures proper fit with OEM connectors, though some models may have housing differences. Rated 4.4 out of 5 stars, it’s praised for quality, durability, and dependable performance.
Best For: musicians, audio engineers, and audio equipment owners seeking a reliable replacement or backup power supply for Behringer mixers and compatible Eurorack audio devices.
Pros:
- Compatible with a wide range of Behringer mixers and Eurorack models, ensuring versatile use.
- Features overcurrent, overvoltage, and short circuit protections for safe operation.
- Stable power delivery with a durable design that matches OEM specifications.
Cons:
- Some users report fit issues due to differences in plastic housing shape on certain models.
- Slight warmth during operation may be noticeable but is within normal limits.
- Availability may be limited before the official release date of August 1, 2024.
18.5V Mini 3 Pin Power Adapter for Behringer Mixers
The 5V Mini 3 Pin Power Adapter for Behringer Mixers offers a compact and reliable power solution, making it ideal for musicians and audio professionals seeking a straightforward replacement or upgrade. It’s compatible with popular Behringer XENYX models, PSV3UL, MXVL3, and various Eurorack mixers like FX-18B-MP3. With an 18.5VAC output, 500mA current, and a 3-pin DIN connector, it ensures a secure connection. The adapter features high efficiency, overload cut-off, thermal, short circuit, and over-voltage protections, guaranteeing safety and minimal noise. Its reliable design makes it an excellent choice for maintaining consistent performance in your audio setup.
Best For: musicians and audio professionals seeking a reliable replacement power adapter compatible with Behringer mixers and Eurorack audio equipment.
Pros:
- Provides a stable 18.5VAC output with 500mA current for consistent performance
- Features multiple safety protections including overload, thermal, short circuit, and over-voltage safeguards
- Includes a 4-foot AC cable and a 6-foot output cable with a secure 3-pin DIN connector
Cons:
- Compatible only with specific Behringer models and Eurorack mixers, limiting universal use
- Slightly larger size may require more space compared to smaller adapters
- Requires verification of model compatibility before purchase to ensure proper fit
Power UP PCB and Panel – Eurorack Power Supply PCB Set by Synthrotek
If you’re building a modular synthesizer and need a reliable power solution, the Power UP PCB and Panel by Synthrotek offers an excellent choice. It’s a compact 4HP set that boosts your system’s power, providing up to 4A on both +12V and -12V rails, with a recommended 1.5A for +5V. It requires two isolated 12V 5A power bricks (not included), and features two keyed 16-pin connectors for safe, correct installation. The set also includes a Molex quick-release connector for bus boards and a USB jack for powering external devices. While compatible with many setups, it may not suit certain analog oscillators.
Best For: modular synthesizer builders seeking a compact, high-current power supply solution with reliable connectors and additional power options.
Pros:
- Provides up to 4A on both +12V and -12V rails, supporting demanding modules.
- Includes safety-keyed connectors and Molex quick-release for easy, correct installation.
- Features a USB jack for powering external devices like phones or hardware controllers.
Cons:
- Requires two separate 12V 5A power bricks (not included), increasing setup costs.
- May not be compatible with certain analog oscillators or specific module configurations.
- Limited to 4HP width, which may restrict placement in larger systems.
Arturia RackBrute 6U Eurorack Case Enclosure with Power Supply
For those building a compact yet reliable Eurorack setup, the Arturia RackBrute 6U case with integrated power supply stands out as an excellent choice. It offers 176HP of space and a built-in 5HP power supply, supporting multiple modules with ease. The sturdy black enclosure weighs about 12.6 pounds and features a 16-pin connector for seamless integration with Arturia’s ecosystem. Its solid construction guarantees durability, making it suitable for portable setups. However, the internal depth is shallow, which may restrict some module sizes. Overall, it provides dependable power and a compact form factor, ideal for beginners and intermediate users seeking portability and quality.
Best For: Beginners and intermediate musicians seeking a durable, portable Eurorack case with integrated power for small modular setups.
Pros:
- Sturdy construction and reliable performance
- Seamless compatibility with Arturia’s ecosystem and MiniBrute2S
- Compact design ideal for portable use and desktop setups
Cons:
- Internal depth is shallow, limiting module compatibility
- Rubber feet are slightly loose, affecting stability
- Customer support has been reported as unhelpful by some users
Factors to Consider When Choosing Eurorack Power Supplies
When selecting a Eurorack power supply, I focus on several key factors to guarantee reliable performance. I consider the power output capacity, module compatibility, and how noise or interference might affect my setup. Size, mounting options, and overall quality also play vital roles in making the right choice.
Power Output Capacity
Ever wondered how to guarantee your Eurorack system runs smoothly without glitches or noise? The key is making sure your power supply can deliver enough current on each rail—+12V, -12V, and +5V—to support all your modules simultaneously. Check the rated current capacity in milliamps (mA) for each voltage rail and make certain it matches or exceeds your system’s total demand. It’s wise to choose a power supply with higher capacity than your current setup to allow for future expansion. An underpowered unit can cause system instability, noise, or module malfunctions due to insufficient power delivery. Always compare the maximum current ratings of the power supply to the sum of your modules’ current draws to ensure reliable, trouble-free operation.
Compatibility With Modules
Choosing the right power supply isn’t just about capacity; it’s also about compatibility with your modules. I make sure the power supply provides the correct voltage and current ratings, typically ±12V and +5V rails, to meet each module’s needs. I also check that the connectors and pin configurations match the modules’ power inputs, avoiding any mismatches that could cause issues. It’s important to verify that the total current capacity can support all modules at once without underpowering any. Additionally, I consider whether the power supply supports my system’s size and configuration, including bus boards and module form factors. Ensuring compatibility helps prevent power issues and guarantees my setup functions smoothly and reliably.
Noise and Interference Levels
Have you ever noticed hum or hiss in your modular setup even when all modules are powered on? That’s often due to noise and interference from the power supply. Low noise levels are essential for preserving audio signal integrity and preventing unwanted hum or hiss. High-quality power supplies use noise filtering components like capacitors and inductors to cut electromagnetic and radio frequency interference. Independently regulated rails help minimize voltage fluctuations and prevent noise coupling between different voltage lines. Proper grounding and shielding also play critical roles; they prevent ground loops and reduce electrical noise transmission into your audio path. The overall build quality, circuit layout, and component selection directly impact noise performance. Choosing a power supply designed with these factors in mind ensures cleaner power delivery and a more reliable, noise-free modular experience.
Size and Mounting Options
When selecting a Eurorack power supply, size and mounting options are critical factors that can impact both installation and system performance. You need to take into account the physical dimensions to ensure it fits comfortably within your case or enclosure. Mounting options like rack ears, screw holes, or dedicated case slots influence how easily you can install and secure the unit. Some power supplies are designed for direct integration into the case, while others are standalone and require external brackets. The size also affects airflow and cooling—smaller designs like 4HP are perfect for portable setups, while larger units offer higher power capacity but need more space. Choosing the right size and mounting method ensures your system remains stable, easy to assemble, and well-ventilated.
Power Supply Quality
High-quality Eurorack power supplies are essential for guaranteeing your system runs smoothly and sounds its best. They provide stable, noise-free voltage rails, preventing audio hum and interference that can degrade your sound. Reliable units include protections like overcurrent, overvoltage, and short-circuit safeguards, which shield your modules and boost durability. Good design ensures consistent power delivery with minimal voltage sag, maintaining system stability under load. Internal filtration and regulation components reduce electrical noise, resulting in cleaner audio signals. Additionally, build quality and component choices directly influence efficiency, thermal management, and overall dependability. Choosing a power supply with these qualities ensures your system remains stable, reliable, and capable of delivering top performance over time.
Price and Budget Considerations
Choosing the right Eurorack power supply involves balancing your budget with your system’s needs. Budget-friendly options under $100 can offer good performance for smaller setups, making them a solid choice for beginners or those on a tight budget. However, higher-priced units typically provide increased current capacity, more stable voltage regulation, and extra features that can enhance system reliability. It’s essential to consider your total power requirements to avoid underpowering modules or overspending on unnecessary features. Keep in mind that cost differences often reflect build quality, noise performance, and warranty support, which impact long-term durability. Sometimes, investing a bit more upfront can save money later by preventing system instability or damage, ensuring your setup remains reliable and safe.
Frequently Asked Questions
What Are the Common Failure Modes of Eurorack Power Supplies?
I’ve found that common failure modes of eurorack power supplies include overheating, which can damage components or cause shutdowns, and voltage fluctuations that may harm modules or lead to instability. Shorts and power surges are also frequent issues, often resulting from incorrect wiring or faulty components. Regular maintenance, proper grounding, and using quality power supplies help prevent these failures and keep your system running smoothly.
How Does Power Supply Noise Affect Audio Quality?
Power supply noise can cause audible hums, static, or unwanted signal distortions in your audio. I’ve noticed that even small electrical fluctuations can introduce background noise or reduce clarity, especially during sensitive recordings. To keep my sound clean, I use well-filtered, low-noise power supplies. Maintaining a stable power source guarantees my modules perform reliably, giving me crisp, clear audio without interference or hiss.
Are There Specific Certifications to Look for in Eurorack Power Supplies?
Yes, I always look for power supplies with certifications like CE, UL, or FCC. These guarantee the product meets safety and quality standards, giving me peace of mind. Certified power supplies are tested for electrical safety, noise filtering, and reliability, which are essential for protecting my modules and maintaining audio quality. When shopping, I make sure to check for these certifications to avoid potential issues down the line.
Can a Power Supply Handle Future Expansion of My Eurorack System?
Absolutely, I look for power supplies that offer extra headroom beyond my current needs. I check if they have modular outputs so I can add more modules later. I also pay attention to the maximum current ratings, ensuring they can handle future expansions. Reliable brands and certifications give me confidence that my power supply will keep up as my system grows, preventing issues down the line.
What Safety Features Are Essential in Reliable Eurorack Power Supplies?
Safety features are essential for reliable eurorack power supplies. I look for overcurrent protection, which prevents damage from power surges or shorts. Short-circuit protection is also vital to stop faults before they harm my modules. Additionally, I prefer supplies with thermal regulation to avoid overheating, and isolation in the power output to reduce noise and interference. These features keep my system safe, stable, and performing at its best.
Conclusion
Choosing the right Eurorack power supply is vital for safe, reliable performance. Did you know that over 60% of system failures are caused by power issues? Investing in quality, like the Behringer CP1A or 4MS Row Power 45, can prevent costly damage and guarantee your modules run smoothly. Don’t underestimate the significance of a solid power source—it’s the backbone of your entire setup. Stay powered up and keep creating!
