Do I Need a Modular Power Supply?

From large-scale commercial builds to personal hobby projects, there’s always a balancing act between system efficiency and cost. 

While a modular power supply (PSU) has its benefits, it’s more expensive than its non-modular counterpart. So, do I need a modular power supply or can I get by with a standard unit? We’re here to help you find out.

The appeal of a modular PSU is that you can simplify your setup with cleaner wiring and consolidation of equipment. This is obviously neater looking, but it could even influence efficiency and longevity with better airflow. 

There’s also the consideration for the future. You can effortlessly scale up your power setup with a fully modular unit, whereas you’d need to start from scratch otherwise. We’ll walk you through all this and more below to leave you with a clear understanding of whether you need a modular vs non modular PSU.

But regardless of what you choose, remember that Bravo Electro is your trusted source for the best power supply manufacturers. Whether you need a DC to DC converter or an AC DC power supply, find the most reliable models backed by world-class support today! 

What is a Modular PSU?

Let’s start with the basics. This is a type of power supply where all or most of the cables can be detached. This design allows you to customize the cable setup according to the needs of your system, reducing clutter and improving airflow within the computer case. 

This allows you to maintain a clean and organized interior by only using the necessary cables, which not only looks better but can also enhance the cooling efficiency of the system. If you struggle with your power supply overheating, it could be worth the upgrade.

Non-modular PSUs, in contrast, have all their cables permanently attached. This can lead to excess cables that need to be managed, often resulting in a tangled mess that can obstruct airflow and make the interior of the case look cluttered. 

While non-modular PSUs tend to be cheaper and simpler to install, they lack the flexibility and customization options that modular PSUs offer. This might matter for users who frequently upgrade their systems or need a tidy, efficient setup for optimal cooling and performance.

Before we go any further and determine if modular is right for you, it’s important that you understand the two different types:

  • Fully Modular PSUs: Every single cable can be detached. This provides the highest level of customization and ease of use, as you can choose exactly which cables to connect based on your specific needs. Ideal for high-end builds and those who prioritize a clean, organized interior.
  • Semi-Modular PSUs: Essential cables such as the motherboard and CPU power cables are permanently attached, while the rest of the cables can be detached. This offers some degree of customization and reduces clutter without the higher cost of a fully modular PSU.

All that being said, do I need a modular power supply? Let’s find out!

Do I Need a Modular Power Supply?

If cost is not a concern, then you might as well upgrade to a modular unit. This will make your life a whole lot easier when it comes to configuring your setup, especially if you end up needing to scale up your system down the road.

However, if you’re trying to stick within a budget, then you’ll need to be a bit more thoughtful in making this decision to determine if you’re actually getting enough value to justify the investment. 

Assessing Your Needs

First, consider the complexity of your system. If you have a sophisticated setup with multiple devices and components, a modular power supply can simplify cable management, reduce clutter, and improve airflow, helping to maintain optimal performance and PSU longevity.

It’s also important to forecast your needs in the future and consider how often you upgrade or change components in your system. If you frequently adjust or expand your setup, a modular power supply offers the flexibility to add or remove cables as needed without having to deal with a tangle of unused wires.

Advantages of Modular PSUs

There are three main benefits to modular PSUs to keep in mind as you make this decision:

  • Cable Management: By only using the necessary cables, you can keep your system organized to prevent overheating and optimize maintenance.
  • Aesthetics: A cleaner system looks more professional. It also makes troubleshooting power supplies and maintaining them easier. Modular units allow for a neater arrangement, which is especially important in environments where visual inspection and accessibility are frequent.
  • Customization and Flexibility: You can tailor the power supply to your specific needs, making it easier to configure and reconfigure as your requirements change.

Drawbacks to Consider

There’s really only one drawback to going with a modular PSU - cost. So, why are these power supplies so expensive? It comes down to value. 

Given all the benefits we referenced above, manufacturers can justify a higher price tag. These often save you money in the long run. That being said, the upfront cost may not align with everyone’s budget.

Some say that modular power supplies are more prone to failure, too, but we disagree. The claim is that the detachable cables in modular power supplies can introduce additional points of failure. Over time, connectors may become loose or fail, potentially leading to operational issues.

However, this is not a concern when you opt for high-quality power supplies from a reputable brand, like MEAN WELL, Digital Power, IPD, and Cincon.

Plus, many of our models here at Bravo Electro are backed by a warranty so you can shop with peace of mind. More on that later. For now, it’s time we reached a verdict - do I need a modular power supply or not?

So, Do I Need a Modular Power Supply or Not?

Ultimately, this is something only you can answer for yourself based on the specific requirements of your setup along with your budget.

If you value clean and efficient cable management, plan to frequently upgrade or modify your setup, and are willing to invest a bit more for these benefits, a modular power supply is likely a good fit. 

However, if your setup is simple and static, and cost is a primary concern, a non-modular power supply might be more appropriate. Either way, Bravo Electro has you covered with 12v power supply, 24v power supply, 48v power supply, and even high-voltage power supply options.

That being said, let us offer a bit of support below to help you choose the right modular power supply for your unique needs!

What Modular Power Supply Do I Need?

Choosing a power supply can be overwhelming, but we’re here to simplify the process for you. From safeties and certifications to brand reputation, here’s what you need to consider along the way:

Power Requirements

Calculate the total power supply wattage needed by summing the power consumption of all connected devices. You need your PSU to provide sufficient power with some extra capacity to handle any unexpected increases in demand or future expansions.

Additionally, verify that the power supply voltage output matches the requirements of your devices and that the power supply can deliver the necessary current without becoming overloaded. We have more tips on power supply sizing in our blog.

Efficiency Ratings

Power supply efficiency matters because it will help you avoid unnecessary energy loss, reduce heat output, and improve overall reliability. 

This efficiency translates to cost savings and longer lifespan for both the power supply and connected devices. Check for efficiency ratings or performance benchmarks specific to industrial or specialized applications.

Safeties and Certifications

Make sure the unit has the basic safety features integrated, including overvoltage protection, overcurrent protection, short circuit protection, and thermal shutdown features. These safeguards protect both the power supply and your equipment from electrical faults.

You may need more specific safeties and power supply certifications depending on your use case as well, such as protection from temperature, moisture, or dust. This may be a matter of compliance depending on your industry.

Certifications from recognized bodies (such as UL, CE, and RoHS) indicate that the power supply meets stringent safety and environmental standards, ensuring compliance and reliability.

Connectors and Compatibility

Whether you plan to connect your power supply in series vs parallel, you need the right connectors for all your devices. This includes various voltage outputs and specific power supply connector types required by your equipment - be it terminal blocks, DIN connectors, or Molex.

Check the specifications to ensure the power supply can support the necessary connections without requiring additional adapters or modifications. This will prevent headaches down the road.

Brand Reputation and Reviews

Like we touched on earlier, it’s worth investing in a more expensive unit from a reputable brand simply for peace of mind. Reliable brands typically offer better warranties and customer support as well. 

You can’t go wrong with any of the names we mentioned earlier - MEAN WELL being our personal recommendation. Here at Bravo Electro we carry the full selection from this manufacturer.


The whole appeal of a modular PSU is the ability to scale your operation up without complex or costly upgrades to the system’s components. 

Still, you should make sure to future-proof your setup by choosing a unit with a bit more capacity than your current requirements to accommodate future expansions or additional equipment.

Power Your Projects With Confidence by Sourcing Fully Modular PSUs at Bravo Electro!

You should have a solid grasp on what sort of modular PSU you need at this point. If not, don’t hesitate to get in touch with our world-class customer service team here at Bravo Electro. 

We’re available to offer on-on-one assistance and a personalized recommendation. Our customer service team is highly trained in all facets of power supply, but we also have electrical engineers on staff if you have more complex needs or discover that you need a custom power supply solution. We can handle that, too.

Whether you need a modular PSU or a standard din rail power supply, the best AC to DC converter, or any of the types of DC to DC converters, remember that our selection is second to none. 

We’ve carefully sourced each and every product in our catalog from the most trusted manufacturers in the industry, so you can rest assured you’re getting the efficient, dependable solution you deserve. 

So, what are you waiting for? Now that you know whether or not you need a modular power supply, find the perfect pick at Bravo Electro!

Parting Thoughts on Whether or Not You Need a Modular Power Supply

So, do I need a modular power supply? The decision all depends on your specific needs for flexibility, cable management, and future scalability. 

If you want a tidy setup that supports easy upgrades and efficient airflow, a modular power supply is worth the investment. Evaluate your system’s power, voltage, and current requirements to choose a solution that fits both present needs and potential future expansions.

Learn more about the world of power in our blog with resources like how to convert DC to AC, DC DC converter efficiency, AC vs DC power supply, how to use DC power supply, DIY AC to DC converter, switching power supplies, what is an AC adapter, AC to DC inverter, or redundant power supply.

Otherwise, take the first step toward powering your projects with Bravo Electro today. Whether you need a modular unit or something else entirely, we’ve got you covered with efficient, reliable solutions from the most trusted manufacturers in the industry. 

Don’t settle for less than the best, experience the Bravo Electro difference today!