Best SFX PSUs

The 6 Best SFX PSUs For Best Performance

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In the world of PC gaming and high-performance computing, the power supply unit (PSU) plays a crucial role. It’s the heart of your system, providing the necessary power to all components, and choosing the right PSU can significantly impact your system’s stability and efficiency. Among the various types of PSUs available, SFX PSUs have gained popularity for their compact size and efficient performance. In this article, we’ll explore the six best SFX PSUs that can take your system to the next level.

Understanding SFX PSUs

Before delving into our top picks, let’s briefly understand what SFX PSUs are and why they’re a great choice for your PC build.

What Are SFX PSUs?

In recent years, Small Form Factor (SFX) PSUs have emerged as a popular choice for compact and powerful builds, providing a combination of space efficiency and robust performance. Among these, the quest for the best SFX PSUs has led us to discover six exceptional options that stand out in terms of power delivery, efficiency, and overall reliability.

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Advantages of Best SFX PSUs

  • Space Efficiency: SFX PSUs are smaller, allowing for more room inside your PC case.
  • Portability: They are easier to transport if you attend LAN parties or events.
  • Improved Airflow: Their compact size enhances airflow within the case, aiding in cooling.
  • Compatibility: Many SFX PSUs come with adapters to fit ATX cases.

The Top 6 SFX PSUs

Now we will take a closer look at these six powerhouses that cater to the diverse needs of gamers, content creators, and PC enthusiasts. From high-wattage units to those designed for quiet operation, each of these PSUs offers a unique set of features to enhance your computing experience.

1. Seasonic FOCUS SGX-650 Best SFX PSUs

The Seasonic FOCUS SGX-650 is a remarkable Small Form Factor (SFX) power supply unit that has earned its place as a top choice among PC enthusiasts and builders. With a power output of 650 watts, this compact PSU is designed to provide a perfect blend of power, efficiency, and versatility.

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Whether you’re a gamer, content creator, or simply in need of a reliable power source for your compact system, the FOCUS SGX-650 is here to deliver. Let’s delve into the key features that make it a standout choice.

Key Features:

  • 650-Watt Power Output: With 650 watts of power, this PSU can handle a wide range of high-performance components.
  • 80+ Gold Efficiency: The 80+ Gold certification ensures maximum power efficiency, reducing energy waste and operating costs.
  • Fully Modular Design: The fully modular cables enable easy and customizable cable management, resulting in a clean and organized build.
  • Compact SFX Form Factor: Designed to fit into smaller PC cases, making it ideal for compact and space-efficient builds.
  • Silent Cooling: Equipped with a 120mm fan that operates quietly, even under heavy loads, ensuring a peaceful computing environment.
  • High Build Quality: Seasonic is known for its exceptional build quality and reliability, providing long-lasting performance.
  • Over-Current and Over-Temperature Protection: Advanced safety features protect your components from potential damage due to power fluctuations or overheating.
  • 5-Year Warranty: Backed by a 5-year warranty, offering peace of mind and assurance of quality.

Pros

  • 650W power for versatility.
  • Fully modular cables for clean builds.
  • Compact SFX form factor for smaller cases.
  • Quiet operation with a 120mm fan.

Cons

  • No RGB lighting.

2. Corsair SF-L Series SF1000L

The Corsair SF-L Series SF1000L is a testament to Corsair’s commitment to innovation and performance in the realm of power supply units (PSUs). Designed with compact builds and low-noise operation in mind, this fully modular best SFX PSUs is a game-changer for PC enthusiasts and builders.

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With its impressive power delivery and advanced features, the SF1000L is poised to elevate your computing experience. Let’s explore the key features that set this PSU apart in the SFX category.

Key Features:

  • High Power Output: The SF1000L boasts a formidable 1000 watts of power, ensuring compatibility with high-end components and demanding tasks.
  • 80+ Platinum Efficiency: With 80+ Platinum certification, it offers exceptional energy efficiency, reducing power consumption and operating costs.
  • Fully Modular Design: Enjoy hassle-free cable management and customization, as all cables are detachable, resulting in a clean and organized build.
  • Compact SFX-L Form Factor: The SFX-L form factor combines the compactness of SFX with enhanced compatibility and airflow, fitting various PC cases.
  • Low-Noise Operation: Equipped with a Zero RPM fan mode and custom-tailored fan profile, it operates silently during low to moderate loads, ensuring a quiet environment.
  • 100% Japanese Capacitors: Built with high-quality Japanese capacitors, it ensures long-term reliability and stability.
  • Over-Voltage and Over-Current Protection: Advanced safety features safeguard your components from voltage and current fluctuations, enhancing system longevity.
  • 10-Year Warranty: Backed by a 10-year warranty, Corsair’s SF1000L offers peace of mind and long-term support for your PC build.

Pros

  • High power output (1000W)
  • 80+ Platinum efficiency
  • Fully modular design
  • Low-noise operation

Cons

  • Limited SFX-L case compatibility

3. Corsair SF750 Platinum Best SFX PSUs

The Corsair SF750 Platinum represents a pinnacle in power supply technology, offering unrivaled performance and efficiency.

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As part of the SF series, this fully modular power supply unit is designed to meet the demanding power needs of high-end PC builds while maintaining a compact form factor. With a focus on precision engineering and energy savings, the SF750 Platinum is a top choice for discerning enthusiasts.

Key Features:

  • 750-Watt Power Output: This PSU delivers a robust 750 watts of power, ensuring reliable performance for even the most demanding components.
  • 80+ Platinum Efficiency: Achieving 80+ Platinum certification, it maximizes energy efficiency, minimizing power wastage and operating costs.
  • Fully Modular Design: With all cables being fully modular, cable management becomes a breeze, resulting in a clean and organized build.
  • SFX Form Factor: The compact SFX design fits into smaller PC cases, allowing for versatility in system configurations.
  • Low-Noise Operation: Equipped with a quiet 92mm fan and Zero RPM mode, it runs silently under light to moderate loads, maintaining a peaceful computing environment.
  • Premium Build Quality: Corsair’s reputation for quality extends to the SF750 Platinum, featuring high-quality Japanese capacitors for enhanced reliability.
  • Over-Voltage and Over-Current Protection: Advanced safety features safeguard your components from voltage and current fluctuations, ensuring their longevity.
  • 7-Year Warranty: Backed by a 7-year warranty, Corsair’s SF750 Platinum offers long-term support and peace of mind for your PC build.

Pros

  • High 750W power output.
  • 80+ Platinum efficiency rating.
  • Fully modular cable design.
  • Compact SFX form factor.

Cons

  • Premium price point.

4. Cooler Master V850 SFX Best SFX PSUs

The Cooler Master V850 SFX represents a remarkable fusion of power and compact design. As part of the SFX series, this fully modular PSU that delivers exceptional performance for demanding PC builds while maintaining a smaller form factor.

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Cooler Master’s commitment to innovation and reliability shines through in this exceptional unit, making it a top choice for PC enthusiasts and professionals. Now we’ll delve into the eight key features that set the Cooler Master V850 SFX apart in the world of best SFX PSUs.

Key Features:

  • 850-Watt Power Output: This PSU provides an impressive 850 watts of power, catering to high-performance components and demanding tasks.
  • 80+ Gold Efficiency: Achieving 80+ Gold certification, it ensures efficient power delivery, reducing energy consumption and operating costs.
  • Fully Modular Design: With all cables being fully modular, cable management becomes effortless, resulting in a tidy and organized build.
  • SFX Form Factor: The compact SFX design is perfect for smaller PC cases, offering flexibility in system configurations.
  • Silent Operation: Equipped with a 92mm FDB fan and semi-passive mode, it operates quietly, even under load, ensuring a peaceful computing environment.
  • Japanese Capacitors: Built with high-quality Japanese capacitors, it guarantees long-term reliability and stability for your system.
  • Over-Voltage and Over-Current Protection: Advanced safety features protect your components from voltage and current fluctuations, enhancing their lifespan.
  • 7-Year Warranty: Backed by a 7-year warranty, the Cooler Master V850 SFX offers long-term support and peace of mind for your PC build.

Pros

  • High 850W power output.
  • 80+ Gold efficiency rating.
  • Fully modular cable design.
  • Compact SFX form factor.

Cons

  • Premium price point.

5. Silver Stone SX700-G Best SFX PSUs

The Silver Stone SX700-G is a formidable power supply unit that packs an impressive punch. Crafted by Silver Stone, a renowned name in the industry, this fully modular PSU is designed to excel in compact builds, offering power and efficiency in a small package.

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It caters to gamers, creators, and PC enthusiasts who demand top-tier performance from their systems. Let’s explore the eight key features that make the SilverStone SX700-G a standout choice.

Key Features:

  • 700-Watt Power Output: The SX700-G delivers a robust 700 watts of power, ideal for powering high-performance components.
  • 80+ Gold Efficiency: It boasts an 80+ Gold efficiency rating, ensuring energy-efficient operation and cost savings.
  • Fully Modular Design: With all cables being fully modular, cable management becomes effortless, resulting in a neat and organized build.
  • Compact SFX Form Factor: Designed to fit into smaller PC cases, making it suitable for space-conscious builds.
  • Advanced Cooling: Equipped with a 120mm silent fan that offers effective cooling without excessive noise.
  • Active PFC (Power Factor Correction): Enhances power efficiency and ensures stable voltage output.
  • Over-Current and Over-Voltage Protection: Advanced safety features protect your components from voltage and current fluctuations, ensuring their longevity.
  • 5-Year Warranty: Backed by a 5-year warranty, the SilverStone SX700-G offers peace of mind and long-term support for your PC build.

Pros

  • 700W power for high-performance builds.
  • 80+ Gold efficiency for cost savings.
  • Fully modular cable design.
  • Compact SFX form factor.

Cons

  • Not as high-wattage as some competitors.

6. be quiet! SFX-L Power 600W

The be quiet! SFX-L Power 600W is a testament to exceptional engineering in the world of best SFX PSUs .

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As a product of be quiet!, a renowned name in the industry, this fully modular PSU has been crafted to deliver both power and silence, catering to the needs of PC enthusiasts, gamers, and professionals alike.

Key Features:

  • 600-Watt Power Output: The SFX-L Power 600W provides a robust 600 watts of power, ideal for powering high-performance components.
  • 80+ Gold Efficiency: It boasts an 80+ Gold efficiency rating, ensuring energy-efficient operation and cost savings.
  • Fully Modular Design: With all cables being fully modular, cable management becomes effortless, resulting in a tidy and organized build.
  • SFX-L Form Factor: Designed to fit into smaller PC cases, offering compatibility and enhanced airflow.
  • Silent Wings 3 Fan: Equipped with a 120mm Silent Wings 3 fan, it ensures effective cooling with minimal noise.
  • Advanced Cooling Design: Features a 135mm fan opening for additional cooling, ensuring stable temperatures under load.
  • Over-Current and Over-Voltage Protection: Advanced safety features protect your components from voltage and current fluctuations, enhancing their longevity.
  • 5-Year Warranty: Backed by a 5-year warranty, be quiet!’s SFX-L Power 600W offers peace of mind and long-term support for your PC build.

Pros

  • 600W power for compact systems.
  • 80+ Gold efficiency for energy savings.
  • Fully modular cables for easy management.
  • Silent Wings 3 fan for quiet operation.

Cons

  • Lower wattage compared to some competitors.

Factors to Consider When Choosing the Best SFX PSUs

When it comes to building compact and powerful systems, Small Form Factor (SFX) PSUs come into play. In this article, we will delve into the factors you need to consider when selecting the best SFX PSUs for your PC build.

1. Wattage Requirements

The first and foremost consideration is the wattage requirements of your system. You must calculate the total power consumption of your components, taking into account the CPU, GPU, storage devices, and any additional peripherals. Ensure that the SFX PSU you choose can comfortably handle your system’s power demands.

2. PSU Efficiency

Efficiency matters not only for reducing your electricity bill but also for the overall health of your PC. Look for PSUs with higher efficiency ratings, such as 80 PLUS Gold or Platinum, as they waste less energy and generate less heat.

3. Modular vs. Non-Modular

SFX PSUs come in modular and non-modular variants. Modular PSUs allow you to connect only the cables you need, reducing clutter and improving airflow within your compact case. Non-modular PSUs, on the other hand, come with fixed cables, which may lead to a messier build.

4. Form Factor

Ensure that the SFX PSU you choose matches the form factor of your case. SFX and SFX-L (SFX Large) are the two common SFX PSU sizes, so pick the one that fits your case’s PSU mounting area.

5. PSU Brand and Reliability

Stick to reputable PSU brands known for their reliability and quality. Brands like Corsair, Seasonic, and SilverStone are trusted options in the market.

6. Noise Levels

Consider the noise levels generated by the PSU’s fan. Opt for PSUs with quiet fans or even semi-passive modes, especially if you aim for a silent PC build.

7. Overcurrent Protection

Overcurrent protection is essential for preventing damage to your components. Ensure that the SFX PSU you choose has robust protection mechanisms.

8. Connectors and Compatibility

Check if the PSU has the necessary connectors for your components, including the latest graphics cards and storage devices. Ensure compatibility with your motherboard as well.

9. Warranty and Support

Always check the warranty and support offered by the manufacturer. A longer warranty period is a good indicator of the PSU’s reliability.

11. Efficiency at Different Loads

Examine the PSU’s efficiency at various load levels. Some PSUs may perform better at specific load ranges, so choose one that matches your typical usage.

12. Single vs. Multi-Rail

SFX PSUs can have single or multi-rail designs. Multi-rail PSUs distribute power across multiple rails, which can be safer for your components in case of a short circuit.

13. Size and Dimensions

Consider the physical dimensions of the best SFX PSUs, especially if your case has tight clearance. Measure the available space to ensure a proper fit.

14. Cable Lengths

Check the length of the PSU cables to ensure they reach all your components comfortably. Short cables can lead to a messy build and limited cable management options.

Conclusion

In conclusion, choosing the best SFX PSUs can significantly impact your PC’s performance and efficiency. Whether you prioritize power, efficiency, or silence, there’s an SFX PSU on our list to meet your needs. Upgrade your system today with one of these top 6 SFX PSUs and experience a new level of performance.

FAQs

1. What is the difference between an SFX PSU and an ATX PSU?

SFX PSUs are smaller and more compact than ATX PSUs, making them ideal for smaller PC cases and compact builds. They often have similar features and capabilities but in a more space-efficient form factor.

2. Are SFX PSUs less powerful than ATX PSUs?

Not necessarily. SFX PSUs come in various power ratings, including high-wattage options like 850 watts. They can power high-performance systems just as effectively as ATX PSUs.

3. Can I use an SFX PSU in a regular ATX case?

Yes, many SFX PSUs come with ATX adapters, allowing them to fit and function perfectly in standard ATX cases.

4. Are SFX PSUs more expensive than ATX PSUs?

SFX PSUs can be slightly more expensive due to their compact design and specialized components. However, the price difference is often justified by their benefits in smaller builds.

5. Do SFX PSUs have modular cables?

Many SFX PSUs come with fully modular cables, allowing you to customize your cable management and reduce clutter in your PC case.

Last Updated on 17 December 2023 by Ansa Imran

Ansa

Ansa Imran, a writer, excels in creating insightful content about technology and gaming. Her articles, known for their clarity and depth, help demystify complex tech topics for a broad audience. Ansa’s work showcases her passion for the latest tech trends and her ability to engage readers with informative, well-researched pieces.

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