Best SFX Power Supplies 2021

Corsair SF Series SF600 600 Watt

Corsair SF Series, SF600, 600 Watt, SFX, 80+...
  • Compact SFX form-factor to power the world’s best small form factor PCs.
  • 80+ Platinum certified for ultra-high efficiency operation. Continuous output rated temperature C is...
  • Zero RPM fan mode for near-silent operation at low to medium loads.

Corsair SF600 is one of the best sfx psu you can buy for mini-ITX or SFF build, whether it’s a gaming PC or a quiet HTPC. This is a powerful, fully modular 600 watt power supply that can be used in a high end SFF gaming version equipped with mid to high end graphics cards. Corsair’s SF600W power supply features Japanese capacitors which are much more durable than your traditional capacitors. The efficiency rating is 80+ Platinum, which in the long run can save you money on your electric bill. To be precise, you could save up to £ 3 per year compared to over 80 Gold Mods.

The power supply is supplied with a single 12V rail with a current of 50A. Modular cables are soft, flexible and easier to use. Corsair SF600 has achieved 80 Plus Gold certification and you can expect 90% or more efficiency at 50% load. It comes with a super quiet 92mm which has a zero speed fan mode. This means that the fan does not spin when the load on the power supply is low. For graphics cards, it comes with two 8-pin PCI Express (6 + 2) power connectors or cables. On the back of the SMPS, you can find an on / off switch. This power supply is compatible with motherboards and mini-ITX and ATX boxes.

Corsair SF Series makes the Best SFX Power Supplies for Gaming in 2021.

Seasonic Focus GM-650 650W 80+ Gold

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Seasonic Focus GM-650, 650W, Semi-Modular, Fits...
  • COMPACT SIZE: 140 MM deep fits ALL ATX systems.
  • SEMI MODULAR: Provides the most common connections while allowing flexibility on the peripherals to...
  • 80 PLUS GOLD: Less energy gets wasted during power conversion; Cut down your electricity usage and be .

Seasonic’s Focus Gold is a midrange line of fully modular power supply that deliver great performance for the money and this SFX version is no different. The Seasonic SGX-650 is a fully modular unit that offers excellent performance. It is quite quiet even under heavy load in hot environment. It has excellent efficiency, in line with the 80 Plus Gold stamp. You get a ten-year warranty. Low noise and excellent operating temperatures are achieved by using a 120mm fan, which means this is an SFX-L unit. This means this feed is a bit deeper than standard SFX units, measuring 125 x 125 x 63.5mm. You can still install it in most Mini-ITX cases, but not all, so be sure to check compatibility before pulling the trigger.

For cooling, it comes with a 120mm fan with Dynamic Fluid Bearing (FDB) for longevity and quiet operation. The hybrid silent fan control of this power supply operates in three modes: fanless mode, quiet mode and cooling mode. Up to 30% load, it works in fanless mode (0dB noise), from 31% to 50%, it works in silent mode, and above 50%, it works in cooling mode. The modular cables that come with this power supply are flat, making them tangle-free and creating a little less clutter. However, the cables are not braided. The power supply has all the safety and protection features including OPP, OVP, UVP, OCP, OTP, SCP. An SFX to ATX adapter is included with this power supply for use in regular ATX cases. This is the best SFX power supply for PC gaming.

SilverStone Technology SST-SX700-G 700W SFX Fully Modular 80 Plus Gold PSU

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SilverStone Technology SST-SX700-G 700W SFX Fully...
  • Support Standard SFX form factor
  • Silent running 92mm FDB fan with 18 dBA minimum. All Japanese Capacitors
  • 100% modular cables. All cable with flexible flat arrays

SilverStone SX700-G is a rugged SFX power supply for high-end small form-factor systems equipped with high-end graphics cards and fast processors. This is an 80 Plus Gold certified 700 watt power supply that comes with a single 12V rail and has a current of 58A on it, which is more than enough to build an enthusiast level SFF gaming PC or station. job. This is a fully modular SFX power supply and comes with four 8 pin (6 + 2) PCIe slots which are more than enough even for a high end graphics card. A 92mm fan with FDB bearing keeps the power supply cool and is very quiet in operation (minimum sound level of 18dB). Modular cables are flat and flexible, making them easy to maneuver in tight spaces and provide better cable management in the enclosure.

This is a 700W power supply that ticks all the boxes for a good SFX model. For starters, it’s rated 80+ Gold, which means it handles heat very well and doesn’t compromise on reliability. The 92mm fan runs quietly, and when you’re not pushing your system, the PSU will be nearly silent. And to add to that, you have a fully modular design with great cables that make cable management easy. The + 12V single rail has very strict 3% voltage regulation and low ripple and noise, so overall you are looking for a great power supply. If you need that horsepower, you’ll be hard pressed to find a better option, even at a bit steep price.

EVGA Supernova 650 GM

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EVGA SuperNOVA 650 GM, 80 Plus Gold 650W, Fully...
  • 650W SFX form factor
  • 80 PLUS Gold certified, with 90% (115VAC) / 92% (220VAC~240VAC) efficiency or higher under typical loads
  • Fan Size/ Bearing: 92mm double Ball Bearing

This SFX power supply series offers 450W, 550W and 650W power supplies that are fully modular and come with braided cables for extra protection. Additionally, all are 80 Plus Gold certified for better fuel efficiency and come with a 92mm double ball bearing fan for durability and long life. The 92mm fan is very quiet in operation and does not spin at low loads, making the power supply completely silent during normal operation. For starters, this is a 650W power supply rated 80+ Gold. This means you can expect at least 90% efficiency under typical loads, which is good enough for a power supply with this price tag. To add to that, it comes with a 92mm fan with double ball bearing, which is almost silent and will last you a long time. EVGA gives you a 7-year warranty on the power supply.

The build quality of the power supply is excellent and it comes with all the heavy duty protection features which include OVP (over voltage protection), UVP (under voltage protection), OCP (over current protection), OPP (Overvoltage Protection), SCP (Short Circuit Protection) and OTP (Overheating Protection). Other features include Active Power Factor Correction (PFC) and 100% Japanese capacitors. An SFX to ATX bracket adapter is included with the power supply, which also allows it to be used in standard ATX cases. So if you’re looking for a high-quality, powerful SFX power supply for your compact gaming version or high-end workstation, grab it quickly without thinking too much.

Thermaltake Toughpower SFX 450W

Thermaltake Toughpower SFX 450W 80+ Gold Fully...
  • 80 plus gold Certified
  • Zero rpm smart fan control
  • ATX PSU bracket included

Thermaltake Toughpower SFX 450W Gold Power Supply which is a high quality SFX power supply for small form factor computers. This is a fully modular 450W power supply and 80 Plus Gold certified for increased efficiency. The power supply is only 100mm in length, making it suitable for the smallest of cases.

The ToughPower 450W Gold PSU is a great unit for low wattage builds that don’t require a lot of processing power. It has 37A current on its single 12V rail, which is enough to build a mid-range SFF gaming PC or powerful HTPC. This Thermaltake SFX power pack comes with an ultra quiet 80mm zero RPM smart fan that will not spin when the load on the power pack is low. All cables are braided and are quite strong. There are two 8-pin (6 + 2) PCI-E power connectors for graphics cards and the power supply comes with an SFX to ATX adapter bracket for use in normal ATX cabinets. There is also a 600W model available for this power supply for users who have higher power requirements with their SFX gaming version.

The fan is a zero-speed model, which means that when you don’t press down on the power supply, it will be quiet. It’s also a fully modular power supply, so you can go ahead and use only the cables you need. Overall, although slightly more expensive than the competition, the Toughpower SFX450W is a great power supply.

Seasonic Focus SGX-650 650W

Seasonic Focus SGX-650 650W 80+ Gold SFX 12 V/ATX...
  • High Efficiency, 80 PLUS Gold Certified: 90% efficient at 50% load
  • Compact SFX-L Size: Fits both SFX & ATX form factor cases (with ATX bracket adapter)
  • Tight Voltage Regulation: keeping the 12 V, 5 V and 3.3 V rails within ? 3% range

The Seasonic Focus SGX 650 is an SFX-L power supply, with many technologies that make it one of the best choices for your future compact build. Instead of going with a dual bearing fan as is the industry standard, the Focus SGX-650 rocks a smooth dynamic fan bearing, making it as quiet as possible, even when carrying loads. higher. Seasonic always gets outstanding recommendations from industry influencers. By sponsoring large eSports organizations, streamers, and tech-related content, you can always count on the quality and resilience of their products.

For cooling, it comes with a 120mm fan with Dynamic Fluid Bearing (FDB) for longevity and quiet operation. The hybrid silent fan control of this power supply operates in three modes: fanless mode, quiet mode and cooling mode. Up to 30% load, it works in fanless mode (0dB noise), from 31% to 50%, it works in silent mode, and above 50%, it works in cooling mode. The modular cables that come with this power supply are flat, making them tangle-free and creating a little less clutter. However, the cables are not braided. The power supply has all security and protection features including OPP, OVP, UVP, OCP, OTP, SCP. An SFX to ATX adapter is included with this power supply for use in regular ATX cases. So if you are looking for a powerful SFX-L power supply for your compact gaming version, this is the best sfx power supply for you.

Fractal Design Ion SFX 650G

Fractal Design Ion SFX 650G - 80 Plus Gold...
  • New Ultra Flex cables that twist and bend to fit your installation
  • 80 plus Gold efficiency for optimized performance and reduced heat
  • Semi-passive mode s silent operation under lighter loads

It is a fully modular 650 watt power supply with 80 Plus Gold certification. It has a single 12V rail that carries 54A current, which is enough to build a high end system. The power supply comes with two 8-pin (6 + 2) connectors to power a high-end graphics card for your SFF gaming version. The power pack is cooled by a thin 120mm fan (15mm thickness) with smooth dynamic bearing and it is quite quiet in operation. In addition, the semi-passive Zero RPM mode of this power supply ensures completely silent operation at low load.

The modular cables of this SFX-L power supply are very flexible and can be bent easily to reach tight places. The power supply is equipped with all the protection features that include over voltage protection, over voltage protection, short circuit protection, under voltage protection, over current protection and overheating protection. An SFX to ATX mounting bracket is also included with this one for use in enclosures that support standard ATX power supplies. All in all, a high quality SFX-L power supply to build a small form factor enthusiast computer.

FSP Dagger Pro 650W Mini ITX Solution

FSP Dagger Pro 650W Mini ITX Solution/SFX 12V /...
  • Micro ATX Compatible
  • Latest standard SFX12V V3. 3 & ATX12V V2. 4
  • 80 PLUS Gold certified | Efficiency ≧ 90% at typical load | UL-62368

The FSP Dagger 650W power supply can handle high-end graphics cards without any problem and to power them it comes with two 8-pin PCI-E cables (6 + 2). For cooling, it is equipped with an 80mm fan with double ball bearing, and its operation is quite quiet. Other features of this high-end SFX power supply include OCP / OVP / SCP / OPP / OCP / OTP protection, active PFC, DC to DC module design and 100% Japanese capacitors. It comes with an ATX mount for use in PS2 ATX cases. It is also available in the 500W variant and you can check them both by going to the link below. All in all a high quality SFX power supply for powerful small form factor builds.

The Dagger Pro 650W SFX power supply. This particular power supply is designed for system builders with size constraints in mind, such as mini-ITX or mini ATX versions. The small power supply is barely 125 × 100 × 63.5mm, which is significantly smaller than the typical ATX power supply (150 x 140 x 86mm). Despite the small size of the unit, FSP doesn’t seem to leave anything out. The power supply is fully modular, supports 2x PCIe slots, 2x CPU EPS slots as well as a handful of SATA / Molex slots. On top of all this, the unit has an 80+ Gold efficiency certification which should keep us in the> 90% efficiency range.

FSP has created a heavy-duty power supply for small form factor fans or even those looking to fit a smaller unit into their more massive build. The Dagger Pro SFX does its job well and is backed by a 7-year warranty to make sure that if something goes wrong, you’re covered. FSP provides a robust SFX solution in the Dagger Pro 650W Gold SFX power supply. It handles a sustained load of the entire system while remaining cool and manageable. The Dagger Pro is a solid choice for any SFF build.

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