Top 6 Best 400 Watt PSU In 2022

It can be tough to find the right power supply for your needs. There are so many different wattages and brands to choose from, how do you know which one is right for you? You might think that because you’re only looking for a 400 watt PSU, any old one will do. But if you want the best performance and longest life out of your power supply, it’s important to choose wisely. 

We’ve done the hard work for you and found the best 400 watt PSUs on the market. Whether you’re looking for a gaming rig or just a new home PC, we’ve got the perfect PSU for you. Check out our top picks below!

1. EVGA 400W Power Supply

The EVGA 400W is a power supply that comes with many features that are beneficial to the user. Some of these features include a 120mm sleeve bearing which helps make it operate quietly, as well as an intelligent auto fan that further reduces noise.

Unique Protection System

This PSU comes with a unique protection system that includes over-voltage protection, as well as overpower and short circuit protection. This makes it a very durable and reliable product.

Great Power Output

It has a great power output of 400 watts which is more than enough for most computers. It also works with a wide range of voltages, making it compatible with many different types of computers.

Silent Operation With Auto System

This power supply is very quiet due to the 120mm sleeve bearing. The intelligent auto fan system further reduces noise, making it one of the quietest power supplies on the market.

Why Do I Suggest This Power Supply?

I suggest this power supply because it is a great product for the price. It comes with many features that are beneficial to the user, such as a silent operation and a great power output. This product is compatible with many different types of computers, making it versatile.

2. CORSAIR VS Series 400 Watt Power Supply

CORSAIR VS Series 400W PSU is a great choice if you are looking for a quality power supply unit. This PSU is 80+ White certified and is also backward compatible with versions. It comes with a 120mm thermally controlled sleeve bearing fan which makes it ideal for gaming rigs or home PCs.

Great Amount of Power Supply

This power supply unit from CORSAIR can provide up to 400 watts of power. This is great for those who want a durable and long-lasting PSU for their gaming rig or home PC.

Safe To Use

It’s also very safe to use as it comes with Over-voltage protection, under-voltage protection, short circuit protection, overpower protection, and over-temperature protection. Due to high protection technology, you can also use this product in high-temperature conditions.

Amazing Compatibility

This is compatible with the latest ATX12V v2.31 and EPS 2.92 standards and is backward compatible with ATX12V 2.2 and older systems. You can also use this product in different types of regions due to its high compatibility.

3. APEVIA SFX 400W PSU

APEVIA SFX 400W PSU is a great choice if you’re looking for a powerful and reliable power supply unit. It can easily handle even the most demanding system builds. Not a bad choice if you’re looking for a power supply unit that’s compatible with mini ITX or micro ATX form factors.

Easy To Connect

It comes with all the necessary cables and connectors for easy installation. All the cables are also sleeved for a neat and tidy look inside your case. With the help of this, you can even route and manage the cables easily.

Silent Operation With Unique Design

This PSU features an 80mm automatically thermal sensing fan for quiet and efficient cooling. The design of this power supply is also unique and it will surely give your rig a great look.

Highly Reliable With Super Power

This PSU is highly reliable and super powerful. With a total output of 400 watts, it can easily handle even the most demanding system builds. So, you can be sure that your system will get the power it needs even during heavy loads and gaming.

4. PC Power & Cooling Silencer Series 400W Power Supply

PC Power & Cooling Silencer Series 400W power supply is a great choice for those who are looking for a reliable and durable PSU. It’s very important to choose wisely when it comes to PSUs because a good one can result in better performance and longer life. This power supply is semi-modular, which means it has some cables that are permanently attached to the unit and some that can be removed.

Super Quiet Operation

The 120mm variable RPM fan helps to keep noise to a minimum so you can focus on your game or work without being distracted. Due to the quiet operation, you can also keep this PSU in your living room without having to worry about it being too loud.

Safety Features with Good Efficiency

It comes with heavy-duty protection circuitries to keep your components safe in the event of a power surge or other issues. Plus, this PSU is also 80 Plus Bronze-level efficiency, meaning it uses less power and creates less heat.

Great Power Output and New Design

It can output up to 400 watts of power. It has a new design that is smaller and lighter than previous models, making it easier to install. In addition, this can help you save space if you’re building a smaller PC.

What Do I Love In This PSU?

The super-quiet operation and the safety features with good efficiency. I also appreciate that it is modular and has a sleek design. Moreover, it has a great new design which makes it easier to install.

5. SeaSonic 400W Platinum Fanless Power Supply

SeaSonic Platinum Fanless power supply is one of the best 400 watt PSU. This power supply is ultra-ventilated, modular cabling design, an all-in-one DC cabling design, and an easy swap connector.

New Design Connector

This power supply is easy to connect and disconnect. You don’t need any special adapters or cables. And it has a new design that is more reliable and easier to use. Plus, it can also be used with older power supplies.

Great Efficiency and Power Supply

It’s great for gaming rigs or just a new home PC. It delivers 400 watts of power and has a high +12V output. It’s also 80 PLUS Platinum certified, meaning it’s extremely efficient. Plus, it has a DC to DC converter design for even better performance.

Active PFC With Good Safety

The power supply has active PFC, which is 99% typical. It also has a good safety rating with CB, CCC, TUV, , BSMI, CE, UKR, FCC, and C-tick( safer than most of the other power supplies).

Long Life and Reliability

This power supply is built to last with long-life electrolytic capacitors. Plus, it has an MTBF of over 100,000 hours, so you can be sure it will last for years to come.

6. ATHENA AT40 400W POWER SUPPLY

The ATHENA AT40 400W power supply is a great choice for anyone looking for a high-quality, reliable PSU. This PSU has 100,000 hours MTBF on the maximum load at +25°C and comes with a variety of connectors, and dimensions of 5.75W x 3.25H x 5.5D (it can fit in most cases).

Enough Power Delivery

It has enough power delivery for 400W with an Active PFC. So, whether you’re looking for a gaming rig or just a new home PC, this is the PSU for you. However, you can also use this PSU for other devices that require ATX power supplies, such as medical equipment or industrial machinery.

Reliable With Different Connectors

This power supply also comes with different connectors, including an AT P8/P9 6+6pin, an AT Push Button 4pin, a Molex 4 Pin, and a Floppy 4 Pin. So, you can be sure that this PSU will work with a variety of devices and components.

Efficient and Compatible

It’s also very compatible with a variety of efficiency standards, including the 80 Plus Bronze standard. So, you can be sure that this PSU is efficient and will work with a variety of devices.

Factors To Keep In Mind While Buying 400 Watt PSU

Now that we’ve gone over some of the best 400 watt PSUs on the market, let’s talk about what you should keep in mind while you’re shopping for one. Here are a few factors to consider:

1. Wattage

As we mentioned before, wattage is one of the most important factors to consider when you’re shopping for a PSU. Make sure to choose a PSU with enough wattage to power your devices.

2. Modularity

Another important factor to consider is modularity. A modular PSU is one that allows you to connect and disconnect cables as needed. This is a great feature to have because it makes installation and upgrades easier.

3. Efficiency and Quiet Operation

You’ll also want to consider efficiency and quiet operation when you’re shopping for a PSU. Choose a PSU that is 80 PLUS certified for maximum efficiency. And, if you’re looking for a quiet PSU, make sure to choose one with low noise levels.

4. Protection System

Finally, you’ll want to make sure that the PSU you choose has a protection system. This will help prevent your devices from being damaged in the event of a power surge.

Now that you know what to look for in a 400 watt PSU, check out our top picks and find the perfect one for your needs!

Conclusion

After you’ve read this article, you should have a good understanding of what to look for when shopping for the best 400 watt PSU. Keep in mind the factors we discussed, such as wattage, modularity, efficiency, and quiet operation. And, make sure to choose a PSU with a protection system. With these factors in mind, you’re sure to find the perfect PSU for your needs!

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