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Small form factors PCs have become quite a trend these days. These are in demand because of its compact structure and multiple innovative features. Thus Power supply manufacturers are now incorporating this SFF into the PSU models. They are now releasing high-grade capable power supply in SFX, SFX-L PSU format. Here are some of our recommended SFX PSUs that are of good build and affordable. 

also check- Best Wireless Gaming Keyboard/Mouse Combo / Best Streaming Headset

 

 

1. Seasonic Focus SGX-650 

 Best SFX Power Supply 2020

 

This PSU has high efficiency with 80 plus gold certified. It is 90% efficient at 50% load. It is compact SFX-L size and fits both SFC and ATX form factor cases. It has tight voltage regulation and has fully modular cabling design, using the cables to reduce the clutter and improve airflow for a better-ventilated system. It is a 120mm fluid dynamic bearing FDB. The fan is embedded with Hybrid fan control, keeping the unit fanless until 30% load. Works on voltage 100-240 V. It has maximum versatility and 3-phased advanced thermal control, including the fanless mode. Easy installation and powerful enough to run any single-GPU build, has a silent operation.

2. Corsair SF Series, SF600

Best SFX Power Supply 2020

This PSU is based on SFX form factor providing high-end performance. It can toggle single multiple 12V rails. It is 80 plus gold certified. High efficiency is seen for less excess heat and lower operating costs. Continuous output rated temperature is 40 degrees Celsius. It is fully modular, making your builds and upgrades easy, with clean and great-looking results.  It is made up of 100% Japanese 105 electrolytic capacitors and other premium internal components to ensure solid power delivery and long term reliability. The zero RPM fan mode ensures virtually silent operation at low and medium loads. It has 7 years warranty. It has platinum efficiency and runs cool and silent. 

3. FSP Dagger Pro 550W 

Best SFX Power Supply 2020

This PSU is micro ATX compatible and 80 plus gold certified. Its efficiency is greater than 90% at a typical load. It is made up of 100% Japanese made electrolytic capacitors and has a high-quality 92mm ball-bearing fan.  It has 80 plus gold certification that guarantees to operate at a minimum of 90% efficiency at 50% load of PSU rated power and reduces electricity cost. It is compatible with most mini-ITX and micro-ATX small form factor PCs. The advanced cable management and flat ribbon cables provide easier installation, enhances overall airflow efficiency. It supports high-end motherboard ensuring solid power delivery to your system. The 92mm fan is optimized for low noise operation. 

4. Corsair SF Series, SF750

Best SFX Power Supply 2020

This PSU harnesses750 continuous watts in SFX form, perfect for the most power-dense small form factor PCs. It ensures ultra-high efficiency operation for less excess heat and lower operating costs. The flexible Para cord sleeved cables make routing and cable management easy. It delivers powerful cooling with low noise operation. It has a rifle fan bearing technology. It allows installation in both small form factor and ATX  cases. It has continuous output rated temperature of 50 degrees Celsius. It delivers power at 92% efficiency, lowering energy consumption, noise, temperatures, and your power bill.  

5. Thermaltake Smart 500W 

Best SFX Power Supply 2020

This PSU delivers 500 W continuous output at over 40 degrees. It compliances with Intel ATX. It is 80 plus certified with 80% efficiency under typical load. It supports PCI E. Active Power factor correction. Made up high-quality components and equipped with a powerful 12V rail, superior performance under all types of system loading. It has a non-modular power supply with an intelligent cooling fan delivering excellent airflow and low noise levels. It provides stable and reliable performance. 

6. SilverStone Technology 450W 

 Best SFX Power Supply 2020

This PSU supports the standard SFX form factor and ATX via an included bracket. It has 80 plus bronze level efficiency, 85% efficiency at 100% load. It is 0-40 degrees Celsius rated operating range. It has a 92mm fan for better cooling at lower RPMs with 450W rated output.  It can be used in standard ATX chassis. It offers output and temperature rating ideal for PCs. It uses a 92mm fan for low noise operation.  The fanless mode operation deactivates when PSU loading reaches 20%. It has flexible flat cables which allow for tighter management of cables. It has a fully modular design, with dual EPS outputs fro high-powered CPUs. 

7. Seasonic Prime 650 Titanium 

 Best SFX Power Supply 2020

This PSU keeps the output voltage within a very tight range and has micro tolerance load regulation. It is fully modular, using only the cables needed to reduce clutter and improve airflow for a better-ventilated system. It is 80 plus titanium certified, with 92% efficiency at 20% load and 90% at 100% load. The premium hybrid fan control allows users to keep the overall fan noise at the lowest possible level. It has top quality 135mm fluid dynamic bearing fan. 

8. Corsair CX Series 650 

Best SFX Power Supply 2020

This PSU is 80 plus Bronze certified with a high-efficiency operation for less excess heat and lower operating costs. A thermally controlled fan allows silent operation at low and medium loads. The semi-modular build makes your builds and upgrades easy, with clean, great-looking results. The continuous output rated temperature is 40 degrees Celsius. The clever fan design allows for little or no detachable fan noise during regular operation.  It is reliable and compatible with smooth operation. It has faster installation and better-looking builds and improved airflow. 

9. GameMaxPower Supply 750W

 Best SFX Power Supply 2020

The honeycomb ventilation design allows optimal heat dissipation. It is 80 plus Gold certified, with 92% efficiency or higher under typical loads. Fully modular output wire rod and optimizing routing requirements. The RGB controllers can be switched, and the lights change into a single color mode and breathing lights, color mix mode in turn. It offers a stable DC output and supports high-end graphics cards and PC systems. The Japanese capacitors offer the highest stability, durability, and reliability. It is compatible with ATX 12 V. The high-end SECC is of black coating casing, and the Low noise is due to 14cm RGB fan with intelligent fan speed control. 

10. LETOUR LED Power Supply 

 Best SFX Power Supply 2020

This PSU gives a 24V power supply with a max power of 360W. It is made up of high-quality Raw materials like Pure copper inductors, high-performance transformers, dual capacity electrolytes. The Capacitors guarantee a high-quality power supply. It has multiple protection with over-voltage protection, overload protection, overheating protection, and prevent short circuits. It is widely used with high-quality switch power supply, LED Strips, LED display, Audio power amplifier, LED lighting, lightbox billboard.  

11. RoMech 30V Power supply

Best SFX Power Supply 2020

This PSU is accurate and reliable with 3 digit LED. It ensures short-circuit, overload, over-temperature, over-voltage protection for long time usage. It allows stable output after load setup and has 2 operation modes- C.C. and C.V. The optimized heat exchanger design with built-in variable speed fan keeps the power supply cool and efficient for different load conditions. It ensures high precision, fast response, automatic cooling, and low noise. It has high accuracy with compact design and hence wide application. It is rechargeable with portable. 

12. StarTech.com Redundant 200W

 Best SFX Power Supply 2020

The Redundant 200W chassis power module lets you add a redundant power supply, or keep a replacement power supply on hand for your media converter chassis.  A hot-swappable modular design allows a second media converter redundant power supply to be removed or installed while the chassis is still operating, avoiding unnecessary downtime. The power supply is installed using thumbscrews for a quick and easy installation that doesn’t require additional tools. 

13. FSP 450W Mini ITX 

 Best SFX Power Supply 2020

This PSU is 80 plus bronze certification, saving energy through its high-efficiency rating up to 85%. With DC to DC structure, this PSU ensures the outstanding conversion efficiency and offers reliability and stability. It has universal use, with a wide input range power supply which ensures the stability of the system when the input voltage is not stable. The matte black coating and all-black ribbon cables give your system a sophisticated look. It complies with the latest green power technology and provides a full array of additional safety approvals to keep designs ahead of regulations. 

14. Enermax Revolution SFX 550W 8

 Best SFX Power Supply 2020

It is a compact and powerful SFX form factor for small but high-performance systems. It has smart semi fan-less control, while fanless under 30%.  It is made up of 100% Japanese capacitors. It allows SFX to ATX compatible installation. It is fully modular and 100% flexible flat cables. It is 80% gold certified with 92% efficiency max. It has 100mm depth which makes it a perfect power supply for compact and high-performance systems. It has a high-density PCB design with standard SFX.

15. Fractal Design Ion SFX 650G 

 Best SFX Power Supply 2020

This PSU has new ultra flex cables that twist and bend to fit your installation. It is 80 plus gold efficiency certified for optimized performance and reduced heat. Semi-passive modes allow silent operation under lighter loads. It has great electrical output quality with tight voltage regulation and low ripple. Fully modular design for reduced clutter and maximize ease of installation. It includes Japanese capacitors, Dual heat sink, and extra custom heat sink. It allows high performance and fans less cooling efficiency. It offers users a whole new experience of quietness and stability.