Top 3 Best Flex ATX PSU for SFF PC In 2022

I was looking for a new power supply for my small form factor PC and mini-ITX case, but I wasn’t sure which one to get. There are a lot of different power supplies on the market, and it can be tough to figure out which one is right for you.

After doing some research, we’ve put together a list of the best flex ATX PSU for SFF PC, mini-ITX cases, and 1U servers.

1. SilverStone Technology 350W Power Supply

The Silverstone Technology 350W is one of the best flex ATX power supplies on the market, thanks to its continuous power output. This power supply is also rated for silent operation, meaning it can handle even the most demanding gaming PCs.

Classis Rail with High Efficiency

This PSU comes with a single 12V rail that can deliver up to 80 plus efficiency. The +3.3V and +5V rails are also combined into a single rail, which provides for more efficient power delivery.

Excellent Power Delivery

It can deliver up to 350W of continuous power, making it ideal for even the most demanding gaming PCs. Due to this, you can also be sure that your system will be stable and reliable.

Active PFC with Low Noise

It’s also Active PFC, which means that it can reduce noise and improve efficiency. In addition, the fan is designed to be low-noise, so it won’t be a distraction while you’re gaming.

Why Do I Want To Recommend This Power Supply?

I highly appreciate this power supply because it’s very easy to use and it delivers a great amount of power. Additionally, the fan is very quiet and it has high efficiency. I also like that it comes with a PCIe 6pin connector, which is great for gaming PCs. Overall, this is an excellent power supply for small form factor PCs.

2. FSP Group Mini ITX Solution And Flex ATX PSU

The FSP Group Flex ATX is one of the best Flex ATX PSU for SFF PCs. It has an internal 4 cm fan that delivers great ventilation, as well as a high-quality resettable power cut-off, low ripple, and noise-canceling features.

Amazing Power Output

It’s able to output 400 watts of power, which is more than enough for even the most strenuous gaming sessions or for powering multiple devices at once. Because of this, you can even use this power supply for industrial purposes. Additionally, the 100% burn-in under high ambient temperature (50) is a testament to its quality and durability.

Efficient and Cost-Effective

Not only does the FSP Group Flex ATX have a great power output, but it’s also an extremely efficient power supply. With an efficiency of 90%, you can be sure that your devices are getting the power they need without wasting any energy. Additionally, it’s one of the most cost-effective power supplies on the market.

Better Safety and Longevity

This PSU also comes with a resettable power shut down feature, which is extremely important for preventing damage to your devices. Additionally, the MTBF (mean time before failure) is 100,000 hours at 25, which is much higher than the average power supply.

3. FSP Mini ITX Solution 500W Power Supply

The FSP Mini ITX Solution 500W is a good choice power supply for small form factor PCs, mini-ITX cases, and 1U servers. This PSU is a Gold certified, meaning it can give high efficiency. Additionally, it comes with a 1U mounting bracket and has direct cable output. Finally, this PSU is fully protected with OVP, SCP, OPP, and OTP.

Fully Optimized For Protection

It has been fully tested for safety. This PSU is also protected by OVP (Over Voltage Protection), SCP (Short Circuit Protection), OPP (Over Power Protection), and OTP (Over Temperature Protection).

Gold Certified For Efficiency

This PSU is gold-certified for efficiency. This means that this power supply can give high efficiency. Plus, it can help save on your electric bill.

Silent With Sufficient Power Supply

It’s silent with a ball bearing fan and black coat finish. This PSU is also powerful, with a single +12V rail design. Plus, it has 100% Japanese-made electrolytic capacitors.

Things To Consider While Buying Flex ATX PSU

Now that you know the things to consider while buying the best flex ATX PSU for SFF PC, it’s time to choose the best one for you. Here are a few things to keep in mind:

1. Power Output

The first thing you need to consider is the power output. You need to make sure that the power output is enough for your needs. If you’re not sure how much power you need, you can use a power calculator.

2. Efficiency

You also need to consider the efficiency of the power supply. The higher the efficiency, the less power is wasted. If you’re not sure how to calculate the efficiency, you can use a power calculator.

3. Safety System

Another thing to consider is the safety system. You need to make sure that the power supply has a resettable power shut down feature. This is important for preventing damage to your devices.

Conclusion

Now that you’ve read the list of the best fanless flex ATX PSU and also buying guide on the best flex ATX power supply for SFF PCs, mini-ITX cases, and 1U servers, you should be able to choose the best one for you. Remember to keep in mind the power output, efficiency, and safety system when making your decision.

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