Top 10 400 Watt Power Supply of 2022

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It’s not always simple to purchase a 400 Watt Power Supply. Being dazed is easy when you see hundreds of variations are available in the market for the same 400 Watt Power Supply by different manufacturers. According to the performance, quality, longevity and overall user experience, they are so similar that you may get hard to make your final buying decision. On that situation, only one thing can assist to find out the best 400 Watt Power Supply and make a winning deal for you.

There are few very essential topics which you must count before buying a 400 Watt Power Supply, and that is what we are going to discuss about in the below. It’s a proper review guideline for you that will include the advantages and disadvantages of your preferred product, as well as its sustainability, affordability, functionalities, and practical benefits. There will also be a solid comparison of a few related products. Now you can easily choose the best one for you. Let’s take a look inside.

Last update on 2024-03-17 at 13:16 / Affiliate links / Images from Amazon Product Advertising API

Top 10 Best 400 Watt Power Supply Review In 2022

In this section, we attempted to identify the top ten 400 Watt Power Supply from thousands of products. This list will make you feel confident in your ability to obtain your chosen 400 Watt Power Supply in a matter of minutes. We prioritized their utility, performance, durability, look, cost, and previous user experiences. We are confident that this list of the top 10 400 Watt Power Supply will help you find the one that best fits your needs.

SaleBestseller No. 1
Thermaltake Smart 500W 80+ White Certified PSU, Continuous Power with 120mm Ultra Quiet Cooling Fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0500NPCWUS-W
  • Delivers 500 Watt Continuous output at plus 40 degree. Compliance with Intel ATX 12 Volt 2.31 and EPS 12V 2.92 standards
  • 80 PLUS Certified, 80 percentage efficiency under typical load
  • Supports (2) PCI E 6plus2pin Connectors. Active (PFC) Power Factor Correction, MTBF: 100,000 hours
  • Industry Grade Protections: (OPP) Over Power Protection, (OVP) Over Voltage Protection, (SCP) Short Circuit Protection
  • High Quality Components
SaleBestseller No. 2
APEVIA VENUS450W 450W ATX Power Supply with Auto-Thermally Controlled 120mm Fan, 115/230V Switch, All Protections
  • Apevia Venus 450W ATX Power Supply.
  • Connectors:1 x 20/24pin Main Power, 1 x 8pin (4+4pin) 12V, 3 x SATA, 3 x Peripheral
  • Auto-Thermally Controlled Black 120mm Fan. 115/230V Switch. 5% Tolerance of 5V, 3.3V & 12V Output
  • IMPORTANT: The power supply will not power on simply by connecting the power cord to both the power supply and wall outlet. Ensure that all the power supply cables are properly connected to the PC for it to power on.
  • IMPORTANT: The 8pin CPU connector can be split apart to become a 4+4 connector by pushing one end of the 4pin down and the other end of the 4pin up for motherboards that require a 4pin power connector.
Bestseller No. 3
EVGA 100-N1-0400-L1 , 400 N1, 400W, 2 Year Warranty, Power Supply 100-N1-0400-L1
  • EVGA 400W N1 series
  • Fan Size/Bearing: 120 millimeter sleeve bearing - Quiet and intelligent auto fan for near-silent operation
  • Heavy-duty protections including OVP, OPP, and SCP
  • 2 year & EVGA's 24/7 technical support
Bestseller No. 4
Raidmax XT Series 400W550W Power Supply - ATX 12V, PCI Express, SATA, Efficient PC Internal Power (400W)
  • High Power Output: Provides 400/550W of power, ensuring reliable and consistent performance for your PC.
  • Efficient Cooling: Utilizes an air cooling method to maintain optimal operating temperatures for your system.
  • Versatile Connectors: Features ATX 12V, 20+4 Pin, Floppy, PCI Express, and SATA connectors for compatibility with a wide range of components.
  • ATX 12V Compliance: Meets ATX 12V V2.3 standards, ensuring compatibility with modern systems.
Bestseller No. 5
Coolmax I-400 400W ATX 12V V2.0 Power Supply (not Compatible with PCI-E)
  • ATX12V version 2.0
  • Single +12V output design
  • Serial ATA 150 ready
  • Total Power: 400 W. Input- 100 ~ 132V AC / 200 ~ 264V AC
  • Connector: 1x 20+4-pin Main Connector; 1x?P4 Mainboard Power Connector; 2x 15-pin SATA Connectors; 3x Peripheral Connectors; 1x 4-pin Floppy Connector
Bestseller No. 6
inShareplus 400W DC 12V Power Supply, IP67 Waterproof Outdoor LED Driver,AC 90-140V to DC 12 Volt 33.3A Low Voltage Transformer, Adapter with 3-Prong Plug for LED Light, Computer Project, Outdoor Use
  • 12V power supply has a sturdy aluminum alloy metal shell, which facilitates heat dissipation and ensures long-term stability, durability, and reliability. Sealed and 100% waterproof IP67 for outdoor use protection. These 12v dc transformer designs can withstand harsh environmental conditions and are used to provide reliable and safe electrical power in environments where moisture, humidity, or water exposure is a concern.
  • Input: 90-140V AC 50/60HZ, Output: 12V DC 33.3A 400W. Whether it is outdoor lighting, industrial settings, or outdoor events, waterproof dc power supply ensure reliable and safe electrical power, enabling the smooth operation of equipment even in challenging conditions. 【⚠️Suggestion: The power used should not exceed 80% of the power of the 12v dc power supply】
  • Converts 110V AC to 12V DC, 2 output,each output is 200W, total is 400W, widely use for LED strip lights, led light bulbs and other 12V DC led lights(≤400W).⚠️Please make sure to place the dc power supply in a well-ventilated environment to efficiently lower its operating temperature. Otherwise, there's a possibility of triggering the over-temperature protection, causing the power supply to temporarily shut down. Once the temperature has cooled down, you can resume using it.
  • Automatic protection for: short circuit, overload, over voltage, over current, high temperature. Protection type: Hiccup mode, auto-recovery after fault condition is removed. They can operate at temperatures of -20℃~+60℃, 20%~90%RH (non condensing) without affecting performance and can be used in various environments.These safety measures ensure that 12 volt power supply remains operational even in demanding conditions,safeguarding both the equipment and the users.
  • LED power supply high quality with 1 year warranty, and our seller support team always stand behind our products in any way, so please contact us for replacement if you have any quality problems.
SaleBestseller No. 7
Apevia SPIRIT600W Spirit 600W ATX Power Supply with Auto-Thermally Controlled 120mm Fan, 115/230V Switch, All Protections
  • Apevia 600W Spirit ATX Gaming Power Supply with black sandblasted casing. Supports Dual/Quad/Multi-core CPUs. Supports single 12V output for higher power usage.
  • Connectors : 1 x 20/24pin Main Power, 1 x 4+4pin 12V, 2 x PCI 6+2pin, 4 x SATA, 4 x Peripheral
  • Auto-thermally controlled 120mm black fan. Output: +3.3V@16A, +5V@20A, +12V@45A, [email protected], [email protected]
  • Heavy-duty protections: Short-Circuit/Over-Current/Over-Voltage/Over-Power/Under-Voltage/Over-Temperature Protections
  • The power supply will not power on simply by connecting the power cord to both the power supply and wall outlet. Ensure that all the power supply cables are properly connected to the PC for it to power on.
SaleBestseller No. 8
APEVIA SFX-AP400W Mini ITX Solution / Micro ATX / SFX 400W Power Supply
  • APEVIA SFX-AP400W Mini ITX Solution / Micro ATX / SFX 400W Power Supply
  • Cooling: 1 x 80mm Automatically Thermal Sensing Fan. All Cables are Sleeved
  • Connectors: 1 x 20+4pin Main Power, 1 x 4pin 12V(P4), 1 x 6/8pin PCIe, 2 x SATA, 2 x 4pin Molex, 1 x 4pin Floppy
  • Output: +3.3V@12A, +5V@12A, +12V@28A, [email protected], [email protected]
  • Dimension: 125mm x 100mm x 63.5mm (4.92" x 3.94" x 2.5") - L x W x H
Bestseller No. 9
Rextin Switching Power Supply12V 400W 33A Regulated Transformer Led Driver SW for LED Strip Lights (400W)
  • Led switching power supply 12V 400W transformer driver SW, Input: AC 110V/220V 50/60Hz, Output: 12V 33A 400W
  • Smart device surge protection for Short-circuit Protection, Overload Protection, Over Voltage,Over Temperature Protection. High efficiency, High Reliability, Low Temperature Rise
  • Certificates: CE/RoHS/FCC Approved
  • Warnings: Don't open or modify the led power supply. Please leave children, kids far away from high voltage power source. Please use it under professional electrician's guides. Any abuse or improper use will void warranty.
  • widely used in LED lighting, Home Appliance, Instrumentation, Office Automation, Telecom, Process and Engineering Industries etc
Bestseller No. 10
Raidmax XT Series Power Supply (400W)
  • Powerful Performance: Get the reliable and consistent power your PC needs with the Raidmax 400XTB, delivering 400 watts of stable performance.
  • Enhanced Cooling: The 120mm cooling fan ensures efficient airflow, keeping your components cool and extending their lifespan.
  • Safety First: Built-in protections including Over-Voltage, Over-Power, and Short-Circuit protection, safeguard your system from potential damage.
  • Compatibility: With a variety of connectors, the Raidmax 400XTB is compatible with most motherboards and components, making it an ideal choice for your gaming or productivity PC build.

Last update on 2024-03-17 at 13:16 / Affiliate links / Images from Amazon Product Advertising API

Here Are Some Tips For Choosing 400 Watt Power Supply

As a human being, this is quite impossible to know everything well. You can know about some more thing but you cann’t be a jack of all trades. In that scenario, reading a thorough buying guide can prevent us from making a costly mistake after buying a 400 Watt Power Supply due to a lack of knowledge.

You do not have to be an expert on that specific product in order to purchase it. Just emphasize on few important things which we are going to discuss in the below. Taking these simple considerations into account may make your shopping experience more pleasant and straightforward. Let’s get started.

Identify what you wants

The first thing you need to discover that what your needs or requirement. If you aren’t aware of your demands, there’s a big chance you’ll buy the wrong things at the wrong time and waste a lot of money. So, first of all and probably most important, we suggest that you take time to consider your necessities for a 400 Watt Power Supply. You can make a short list about your needs. This simple task will lead you to simplify your purchasing process. Then you will be able to know your prioroties which is the most important thing.

Budget vs. Cost

Budget is that one issue which you can’t ignore before you decide to purchase anything else. Any amount of price can be set for your desired product. Different expences like manufacturing, raw material purchasing, logistics and other operational costs and most importantly compny’s brand value as well are the key factors of pricing. The higher quality you demand, the higher amount of money you may have to spend for that. This is the reason, budget really matters for. And it is true as a universal truth for the 400 Watt Power Supply too.

You may heard this popular sayings, “Cut your coat, according to your cloth”. So, find your desired products as per your wishlist first. Analyze the features and prices carefully.Compare them well and choose the best one. The biggest question may come to your mind at this point which is your pocket is ready to spent such amount of money to buy this 400 Watt Power Supply or not. If yes, then go for it. If your pocket refuges to do so, then think about the second best option that you got.

Choose the Right Brand

Because of our emotional links, we are frequently predisposed towards certain companies. But not everytime this practice results get good. Besides all we agree that we have to rely on renoened brands. Because having enough cash in your pocket makes making decisions half as easy. But remember, not every brand is good for everything. As a result, you must tread cautiously when deciding whether or not you have picked the appropriate brand for your specific product.

People are divided into two groups. One is dependent on a particular brand, while the other is unconcerned. What he requires is the right product for the amount he is paying. As we don’t have any idea about your typo.But there are few tips which may come adjuvant for both of you at the time of choosing the right brand for the right product.

  • Make certain you are familiar with the brand.

  • What people are saying about this brand.

  • Analysis the reviews of any specific products of that brand.

  • Contrast the features with those of competitors.

  • Are you satisfied with the features?

Check the features section

Whether you buy it online or offline, the first thing you should check is while buying is the features of 400 Watt Power Supply. This little effort will assist you to get a clear picture about the product. It will make you understand, that product does match with your requirements or not.

The features part also helps us in analysis the differences between ourselves and others. Then, based on the features, you can compare it to similar products. One will have a better understanding of quality as a result of this work, making it easier to move forward with our final decision.

Benefits and Drawbacks must be considered.

Every item has its own set of advantages and pitfalls. It is our duties to carefully examine them out first before buying them. So, keep yourself cool and figure out the negatives you expected from that 400 Watt Power Supply. Perhaps another manufacturer created the ideal one for you. Just don’t be too lazy to compare your options with theirs before making your final decision.

The section of Pros and Cons can be found on the majority of websites. That section should be read with caution. If you have any further questions, simply contact them via email or phone to seek their assistance.

Quality & Durability

Color, Style, Performance, Materials, and, most importantly, Durability are all components of quality. Before making a purchase, you must consider the facts about ensuring quality. When you make this your own, you will demand the quality first. Does this 400 Watt Power Supply worthy or not against your investment? The answer of this question can be found by its quality.

Know About Warranty and Return Policies

Every producers produces products. Good quality products are being maintained by some of them. They make creative advertise also to attract buyers like you and me. Still, everything is okay. But one thing remains yet to think about and that is After Sales Service. For many, it’s really a big deal and it is quite able to make a big difference.

Warranty, gurantee and return policies are so vital that not checking them will be a great mistake. Antyhing can be occured even after buying the best quality product by spending a huge amount of money. Not a single thing will last forever in this universe. Still the expence you will do for the 400 Watt Power Supply, don’t you think that you deserve a minimum return of value from that? So, be careful about checking policies. Sometimes, there may be some hidden issues which they won’t make you clear with words. At that time, simply ask their delegate about thier policies again and have patience until you get the whole thing unequivocally.

Checking FAQ & Customer Reviews make your task easy

Cheking customer reviews and FAQ answers can save your precous time greatly. FAQs are few common questions that were asked frequently by mass people like you and they have been answered as well. In the mean time, you can get a clear picture of the product according to the experience of the real users of it through the customer reviews.

So, checking out these two things, you will get the idea of both. You may find there such informations which might not come in your mind to ask if you didn’t go through. Then you will be able to decide strongly buying this 400 Watt Power Supply will be worthy or not.


The final suggesion is you must consider about the value that the 400 Watt Power Supply providing you is justified enough with the price you are being asked to pay for it. Do you think it is worthy to pay so? Does your demands be fullfilled with that? That’s the thing that should get the most importance we guess.

We hope this article will help you to recognize and buy the best 400 Watt Power Supply in the market and so that you enjoyed it as well. If you think it’s a good guideline for you, then all of our efforts will get success. End of the day, we measure our happiness with your satisfaction.

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