When it comes to building a compact yet powerful system, the right 850W SFX power supply is crucial for optimal performance and reliability. You want something that not only delivers stable power but also enhances cable management and efficiency. With several top contenders on the market, finding the best fit for your needs can be challenging. Let’s explore the standout options that could elevate your setup.

Cooler Master V850 SFX Gold Modular Power Supply (850W)

The Cooler Master V850 SFX Gold Modular Power Supply is an excellent choice for gamers and creators who demand reliability and performance in their compact builds. With 850W of power and 80 Plus Gold efficiency, it ensures your system runs smoothly while delivering up to 600W to your GPU. Its ITX design features a 90° 12VHPWR PCIe 5.1 connector for enhanced durability and customized cable lengths to keep your setup tidy. Plus, the 92mm Fluid Dynamic Bearing fan keeps temperatures in check, while high-quality Japanese capacitors boost efficiency. Enjoy a 10-year warranty for peace of mind in your investment.

Best For: Gamers and creators seeking a reliable, high-performance power supply for compact builds.

Pros:

• Fully modular design reduces clutter and enhances airflow in your system.
• 80 Plus Gold efficiency ensures effective power transfer and lower energy costs.
• Comes with a 10-year warranty, providing long-term peace of mind.

Cons:

• Higher price point compared to non-modular power supplies.
• Limited to SFX form factor, which may not fit all cases.
• The 92mm fan may not be sufficient for extremely high-performance setups under load.

CORSAIR SF850 Fully Modular ATX Power Supply

If you’re building a compact yet powerful gaming rig, the CORSAIR SF850 Fully Modular ATX Power Supply is an excellent choice. This fully modular SFX power supply, featuring 80 PLUS Platinum efficiency, ensures you get top-notch performance while keeping your system quiet with its 92mm PWM fan and Zero RPM Mode. With dimensions of just 4.92 x 3.94 x 2.5 inches, it fits snugly in small-form-factor builds. Built with high-quality Japanese capacitors for durability, it’s ATX 3.0 compliant and PCIe 5.0 ready, ready to handle your gaming demands. Plus, a seven-year warranty gives you peace of mind.

Best For: Compact gaming enthusiasts looking for a high-performance power supply that fits small-form-factor PCs.

Pros:

• Fully modular design allows for flexible and tidy cable management.
• 80 PLUS Platinum efficiency ensures lower energy costs and reduced heat output.
• Seven-year warranty provides long-term reliability and peace of mind.

Cons:

• Higher price point compared to standard power supplies.
• Limited to SFX form factor, which may not be suitable for larger builds.
• Availability may be limited due to high demand and best-seller status.

Thermaltake Toughpower SFX 850W Power Supply (PS-STP-0850FNFAPU-1)

For gamers and content creators seeking top-notch performance in a compact form factor, the Thermaltake Toughpower SFX 850W Power Supply (PS-STP-0850FNFAPU-1) stands out with its 80Plus Platinum certification and ATX 3.1 compliance. With an output of 850W, this fully modular power supply features low-profile cables and a 90mm FDB fan, ensuring efficient cooling and minimal noise. You’ll appreciate the strict voltage regulation and low ripple noise, providing stable power delivery. Plus, it comes with a generous 7-year warranty, reflecting Thermaltake’s commitment to reliability and limitless performance for your demanding builds.

Best For: Gamers and content creators looking for a high-performance, compact power supply with reliable power delivery.

Pros:

• 80Plus Platinum certified for high energy efficiency.
• Fully modular design with low-profile cables for easy cable management.
• 7-year warranty demonstrating long-term reliability and support.

Cons:

• Higher price point compared to non-platinum rated power supplies.
• Compact size may limit compatibility with some larger builds.
• 90mm fan may not provide as much airflow as larger fans in bigger power supplies.

Vetroo 850W SFX Power Supply (80 Plus Gold Certified)

Designed for enthusiasts building compact yet powerful systems, the Vetroo 850W SFX Power Supply stands out with its 80 Plus Gold certification, ensuring top-tier efficiency and reliability. This power supply is ATX 3.1 and PCIe 5.1 ready, making it perfect for modern builds. Its fully modular design allows you to manage cables effortlessly, minimizing clutter in your mini ITX chassis. Plus, with a 10-year warranty, you can trust its durability. The Vetroo 850W SFX also supports backward compatibility with PCIe 4.0 and 3.0, making it a versatile choice for various setups. Enjoy reliable performance and energy savings with this top-notch power supply.

Best For: Enthusiasts looking to build compact, high-performance systems with efficient power management.

Pros:

• 80 Plus Gold certification ensures high efficiency and energy savings.
• Fully modular design allows for easy cable management and reduced clutter.
• 10-year warranty provides long-term reliability and peace of mind.

Cons:

• SFX size may limit compatibility with larger cases without an adapter.
• Higher price point compared to lower-rated power supplies.
• Potential overkill for low-power builds that don’t require 850W.

Cooler Master V850 White SFX Gold Modular Power Supply (850W)

The Cooler Master V850 White SFX Gold Modular Power Supply (850W) stands out as an excellent choice for gamers and PC builders looking to power high-performance components like the Nvidia RTX 5080 or AMD RX 9070 XT. With 80+ Gold efficiency at 90%, it ensures effective power transfer, while its compact ITX design fits perfectly in mini-ITX builds. The fully modular setup reduces clutter and enhances airflow. Plus, the high-quality Japanese capacitors and a 10-year warranty guarantee long-term reliability. Enjoy reliable cooling with the Fluid Dynamic Bearing fan and robust ATX 3.1 cables designed for optimal performance and safety.

Best For: Gamers and PC builders seeking a compact, high-efficiency power supply for high-performance graphics cards like the Nvidia RTX 5080 or AMD RX 9070 XT.

Pros:

• Fully modular design for reduced clutter and improved airflow.
• 80+ Gold efficiency rating ensuring effective power transfer and lower energy costs.
• Backed by a 10-year warranty, providing peace of mind and long-term reliability.

Cons:

• Compact size may limit compatibility with larger cases and components.
• Higher price point compared to non-modular or lower-efficiency power supplies.
• Limited availability of certain cable lengths for specific builds.

ASUS ROG Loki SFX-L 850W Platinum Power Supply

ASUS ROG Loki SFX-L 850W Platinum Power Supply stands out for gamers and content creators looking for top-tier performance and efficiency. Its fully modular design and 80+ Platinum certification ensure you get maximum power with minimal waste. The ROG heatsinks and a 120mm PWM fan keep noise levels below 25 dB while maintaining optimal thermals. Plus, it’s ATX 3.0 compatible, bundled with a 16-pin PCIe cable for up to 600W, making it perfect for PCIe Gen 5.0 graphics cards. With a 10-year warranty, you can trust its reliability for your demanding setups.

Best For: Gamers and content creators seeking a high-performance, efficient power supply with low noise levels.

Pros:

• Fully modular design allows for easy cable management and customization.
• 80+ Platinum certification ensures high efficiency, reducing energy waste.
• Quiet operation with noise levels below 25 dB, thanks to advanced cooling technology.

Cons:

• Premium price point may not be suitable for budget builds.
• Compact SFX-L form factor may limit compatibility with larger cases.
• The high wattage may be unnecessary for users with less demanding setups.

ARESGAME SFX Power Supply, 850W, 80 Plus Gold Certified

For those seeking a reliable and high-performance power supply for compact builds, the ARESGAME SFX Power Supply offers an impressive 850W output with 80 Plus Gold certification. This fully modular unit ensures efficient cable management while maintaining 90% efficiency at 50% load, reducing energy consumption and noise. Its durable hydraulic bearing fan keeps things cool, and the 105C rated Japanese capacitors enhance stability and longevity. Compatible with SFX cases and mini-ITX systems, it even includes an SFX-to-ATX bracket for versatile installation. Plus, you get a 10-year warranty, making it a solid choice for your next build.

Best For: Those looking for a high-efficiency power supply for compact PC builds that require reliable performance and longevity.

Pros:

• Fully modular design for efficient cable management.
• 80 Plus Gold certification ensures high energy efficiency and reduced heat and noise.
• Includes a 10-year warranty for peace of mind regarding durability.

Cons:

• SFX form factor may not be compatible with larger cases without the included bracket.
• Slightly heavier than some other compact power supplies on the market.
• Availability may vary, impacting purchase options.

Vetroo 850W SFX Power Supply (80 Plus Gold Certified)

Looking for a reliable power supply that fits perfectly in compact builds? The Vetroo 850W SFX Power Supply is your answer. With its 80 Plus Gold certification, you’ll enjoy high efficiency and performance, making it ideal for demanding setups. It’s ATX 3.1 and PCIe 5.1 ready, ensuring compatibility with the latest components. The fully modular design simplifies cable management, allowing you to install only what you need. Plus, the 90mm FDB fan ensures quiet operation. With a 10-year warranty, you can trust in its long-term reliability. This power supply is perfect for mini ITX chassis and expandable with an SFX-to-ATX bracket.

Best For: Those seeking a high-efficiency power supply for compact builds and demanding setups.

Pros:

• 80 Plus Gold certification ensures high efficiency and performance.
• Fully modular design allows for easy cable management, reducing clutter.
• 10-year warranty provides long-term reliability and peace of mind.

Cons:

• SFX size may not be suitable for larger cases without an SFX-to-ATX bracket.
• Higher price point compared to non-certified power supplies.
• Limited availability in certain regions may make purchasing difficult.

be quiet! Pure Power 13 M 850W Power Supply

The be quiet! Pure Power 13 M 850W Power Supply is a top-notch choice for your build. With an 80 PLUS Gold certification, it boasts up to 94.4% efficiency, keeping your system cool and quiet. Weighing 6.89 pounds and measuring 6.3 x 5.91 x 3.39 inches, it fits easily in most setups. Its single 12V rail delivers 850W of continuous power, handling even the most demanding loads. Plus, the modular design improves cable management, while the semi-passive cooling ensures silent operation. Ideal for gaming or media creation, this power supply ranks #4 in its category with a stellar 4.7-star rating.

Best For: Gamers and content creators seeking a reliable and efficient power supply for high-performance systems.

Pros:

• 80 PLUS Gold certification ensures high efficiency, resulting in lower energy costs and cooler operation.
• Modular design allows for better cable management, reducing clutter and improving airflow within the case.
• Semi-passive cooling feature minimizes noise during low-load conditions, making it ideal for quiet builds.

Cons:

• Weight of 6.89 pounds may be considered heavy compared to some lightweight alternatives.
• Limited to 850W output, which may not be sufficient for extreme builds with multiple high-end GPUs.
• Higher price point compared to some non-certified alternatives in the market.

Lian Li SP V2 850 Watt SFX Power Supply

Engineered for high-performance systems, the Lian Li SP V2 850 Watt SFX Power Supply stands out with its fully modular design, allowing you to use only the cables you need for a clean and efficient build. Compliant with ATX 3.1 and PCIe 5.0 standards, it ensures compatibility with cutting-edge hardware. The native 12V-2×6 connector features visual cues, enhancing the reliability for high-performance graphics cards. With a premium 92mm Fluid Dynamic Bearing fan, it maintains low noise levels while delivering efficient cooling. Backed by a 10-year warranty, this power supply promises durability and long-lasting performance for your system.

Best For: High-performance PC builders seeking a reliable and quiet power supply for cutting-edge hardware.

Pros:

• Fully modular design allows for a clean build by using only necessary cables.
• Compliant with ATX 3.1 and PCIe 5.0 standards, ensuring compatibility with the latest components.
• 10-year warranty provides assurance of durability and long-lasting performance.

Cons:

• Higher price point compared to non-modular or lower-wattage power supplies.
• Limited availability in some regions may make it harder to purchase.
• Size constraints of SFX form factor may not fit all cases, limiting compatibility with larger builds.

Factors to Consider When Choosing an Sfx Power Supply 850W

When choosing an 850W SFX power supply, you’ll want to consider several key factors. Look at efficiency ratings and certifications to ensure reliability, and think about modular designs for better cable management. Don’t forget about cooling solutions, compatibility with your components, and the warranty for peace of mind.

Efficiency Ratings and Certifications

Choosing an SFX power supply with an optimal efficiency rating is crucial for getting the most out of your system. Ratings like 80 PLUS Gold and Platinum reveal how well a power supply converts AC to DC power with minimal loss. For instance, Gold certification requires at least 87% efficiency at 20% and 100% loads, while Platinum demands 90%. Higher efficiency means less heat generation, which enhances system stability and longevity. You’ll also benefit from improved voltage regulation and lower ripple noise, boosting overall performance. Plus, a more efficient power supply often operates quieter, as reduced heat allows for better cooling solutions without relying on loud fans. Prioritizing efficiency can lead to significant energy savings and a more reliable setup.

Modular Design Benefits

Efficiency isn’t the only factor to consider when selecting an SFX power supply; the design of the unit plays a significant role in overall system performance. A fully modular design allows you to connect only the necessary cables, reducing clutter and improving airflow within your case. This not only enhances ease of installation but also helps you customize cable lengths, avoiding tangles during setup. By eliminating unused cables, modular designs contribute to better cooling efficiency, as there are fewer obstructions to airflow. Additionally, fully modular power supplies often support low-profile cables, improving space utilization and aesthetics in compact builds. The flexibility of a modular design also makes upgrades and replacements easier, as you can swap out cables without disconnecting the entire power supply.

Cooling Solutions and Noise

Although you might prioritize wattage and modular design when selecting an SFX power supply, cooling solutions and noise levels are equally vital for creating a harmonious system. Look for models featuring Fluid Dynamic Bearing (FDB) fans, which provide reliable performance and enhance thermal efficiency with minimal maintenance. Pay attention to noise levels; many power supplies operate in zero-RPM mode under low loads, significantly cutting acoustic output during light usage. A 92mm PWM fan can improve both cooling effectiveness and overall noise reduction. Advanced cooling technologies, like optimized airflow and semi-passive operation, not only keep temperatures down but also extend the lifespan of your components. Consider noise reduction certifications, such as Lambda A, to ensure a quieter computing experience.

Compatibility With Components

When selecting an 850W SFX power supply, compatibility with your components is crucial for a smooth and efficient build. First, ensure the power supply fits your motherboard’s form factor, as SFX units are tailored for compact systems like mini-ITX builds. Next, check the wattage requirements of your components, particularly the graphics card, since high-performance GPUs may need specific connectors and substantial power—up to 600W for PCIe 5.1. Verify the power supply meets ATX 3.0 or 3.1 standards for compatibility with the latest hardware. Look for models that include essential connectors, like the 12V-2×6 for PCIe 5.1, to avoid extra purchases. Lastly, consider a single massive 12V rail for better performance under load.

Warranty and Reliability Factors

Choosing the right warranty and reliability factors for your 850W SFX power supply can make a significant difference in your system’s performance and longevity. A longer warranty, ideally between 7 to 10 years, shows the manufacturer’s confidence in their product. Look for power supplies that use high-quality components, like 105°C rated Japanese capacitors, as they enhance stability and durability. A comprehensive warranty covering both parts and labor gives you peace of mind against defects or failures. Additionally, check customer reviews; positive feedback can indicate a reliable power supply. Finally, ensure the manufacturer adheres to industry standards, such as ATX 3.1 compliance, as this reflects their commitment to quality and reliability in their designs.