Best Power Supply 2022: (10 Best PSUs for Gaming)

best psu

In this Article
We have reviewed top rated PSUs 2022 to make it easy for you to select one. The article holds products reviews with key specifications and designs. Similarly, PSUs are not easy to directly pick when you are not much familiar. For technical information, we have included a detailed buyer’s guide section with all key factors. Go through all the included best PSUs and choose one that matches your requirements.

If you’re looking for the best power supply, you are not sure which one to get because of the tons of options available. Here we are, enlightening you with a range of PC power supplies that you can genuinely call the best PSU 2022.

All your best desktop power supply questions will be answered in this buyer’s guide about the best budget PSU.

Our best power supply guide focuses mainly on the best gaming power supply units, both high-end, mid-range and good affordable PSU’s. The price to performance ratio of all the power supply units reviewed here is as good as you want it to be.

Selecting a PSU totally depends on your needs and PC power. But, if you are not sure yet and your needs are not too high, you may pick any PSU below 800 wattage. It will address all your needs and won’t cost you too many bucks. Else, you should go for the top chunk, which will really give a good time with all your PC needs, primarily gaming.

Also Read: Best Gaming Laptops

Editor’s Top 3 Picks

Corsair AX1600i

Corsair AX1600i

Wattage: 1600w
Efficiency: 80+ Titanium
Modularity: Fully Modular
Corsair HX1200

Corsair HX1200

Wattage: 1200w
Efficiency: 80+ Platinum
Modularity: Fully Modular
Corsair SF750

Corsair SF750

Wattage: 750w
Efficiency: 80+ Gold
Modularity: Fully Modular

Choosing the Best Power Supply?

You’ve got to keep the following things in your mind before you buy a power supply unit for computer.

Power Draw & Efficiency

This is a basic test that can help you understand which power supply would fit with your PC. You need to first check how much power draw your PC is doing under load. For that, using Cooler Master’s online calculator would be the right choice. It’s easy to use, effective and gives good estimates.

After finding that out, you need to consider the efficiency of the power supply as 80Plus . Here is a neat chart you can take help from.

power supply efficiency rating 2019

This chart is essential to understand when choosing PC PSUs as they tell you how much margin you have before you’re pushing your supply to the limit.

Suppose your PC estimated power draw is 400W, for example (let’s say it’s 430 watts for good measures), and you go for a 500W Bronze power supply. In that case, it will basically be right around the edge under full load. Under that kind of stress, it won’t last very long.

This means a bronze rated 500-Watt PSU at 100% load will give you an effective 410 watts of power. But at this point, it will be screaming for mercy. You need to understand and calculate efficiencies and power draw as well before choosing a power supply.

It is also good to buy a power supply above your rated system draw to leave room for improvements later. Plus, running your power supply at 100% or close to 100% isn’t recommended at all.

Quality vs Budget

Some people believe that High-quality PSUs are magical and can never fail on you, whereas budget power supplies. Well, think again.

It’s not about the price of the CPU that defines its efficiency; it’s the components used. In fact, you will come across certain PSUs with the same wattage, but one will perform better than the other.

While yes, the general guiding principle is that the more expensive, the better in terms of PSUs, but it isn’t the case 100% of the time.

You must also consider that sometimes similar priced are listed in different tiers of power supply units. So, going for the only price isn’t always the best rule when buying power supplies.

SLI / CrossFire

While there are only a tiny number of people who actually do Crossfire / SLI GPUS together, it is still something that many people consider.

If you have a VEGA 64 / 56 crossfire setup, then getting a power supply unit rated at least gold and 850 Watts to 1000 Watts is recommended or higher (considering the rest of your system specs). This is because these graphics cards have a relatively higher power draw.

For current-gen Nvidia graphics cards (the GTX 1000) series, you could get away with SLI 1080tis at 750 Watt to 850-watt gold-rated or better power supplies (depending on the rest of your system). The best rule is to use the Cooler master calculator mentioned above to ensure the power draw is within your PSUs capabilities.

You may also need to consider the 12V rail amp for the PSU and the load regulation along with it.

Modularity

This is a personal preference; most people prefer getting modular PSUs mainly because they’re more accessible to manage. And getting custom length (and color) is a thing that ties together the rest of the build.

Non-modular PSUs aren’t less quality than their counterparts but are more focused on closed case builds (no windows) and manufacturer-built systems. While getting a non-modular PSU doesn’t mean you made a wrong choice, it does restrict you from managing cables and all that mentioned above.

However, if you want the best of both worlds, getting a semi-modular powers supply is a sound choice. It comes with the price advantages over a modular power supply while providing most of the functionality. Plus, you can customize it with different length cables and custom colored ones as well.

Connectors

It is essential to consider that the PSU you are going to buy can connect each system component. If not, then it is useless to go with. There are several vital connectors that you always should prioritize. The first is the main connector that connects the power supply unit to a motherboard. The said connector comes in two types: a 20-pin connector and a 24-pin connector. The latter 24-pin connector is getting popular in most of the latest systems.

Next is the Processor power connector; this connector connects the power supply unit to the processor. Processor power connectors are of two different types, 4-pin and 8-pin versions. Look for one that is compatible with your system. Usually, a 4-pin Molex connector is used to connect optical drives, Hard disk drives, and other devices.

Best PSU 2022

1. Corsair AX1600i

Powerful 1600 watt PSU

Corsair AX1600i

SPECIFICATIONS
  • Wattage: 1600w
  • Efficiency: 80+ Titanium
  • Modularity: Fully Modular
WHY BUY?
  • Monitoring Software
  • Quality
  • Gallium instead of Silicon
WHY AVOID?
  • Price

AX1600i beats all other 1600w PSUs. Besides supplying power, it has other good things like Corsair Link software for adjusting power settings. It is rated as 80+ Titanium.

Corsair AX1600i is the best 1600w PSU you will get this year.

It’s the best power supply for gaming that supports ATX and will give you all your power needs. And not a single game will be left beyond where you may need some more power.

Pretty evident that the power supply of this wattage will come with a considerable price, but the price won’t matter if you really want some good power. It never degrades and will constantly be giving you the energy your PC needs.

Previously EVGA 1600 T2 was the best 1600 watt power supply and still is a good option. Still, it is analog, whereas the Corsair AX1600i is digital, and as per several tests and experiments, it performs better.

Rated as 80+ Titanium in terms of efficiency, there is nothing beyond that. Of course, suppose we switch to Cybenetics’ ETA efficiency standards. In that case, it does not reach the ETA A++ standard but is rated at ETA A+.

One of the factors that makes it best is the quality of components. Under the hood, this 1600w PSU has 105°C Japanese capacitors. Also, they’ve switched from silicon to gallium which decreases the losses in switching and brings in more efficiency.

Besides, using the CORSAIR LINK software, you can adjust the power settings and obtain what you need. The software lets you monitor and control several things.

Corsair AX1600i is a fully modular power supply, and you can also choose what color you want. In addition, the “Zero RPM Fan Mode” is amazing and dead silent when operated at low or medium load.

• OVP (Overvoltage protection)
• UVP (Under voltage protection)
• OPP (Over Power protection)
• SCP (Short Circuit protection)
• OCP (Over Current protection)
• ICP (Inrush Current protection)
• SP (Surge protection)

You may face some noise when operated at a high load. But because it works at 1600w and gives you above 94% of efficiency, the noise is not a big deal. Overall, if you really need and want to buy a 1600w PSU, don’t look here and there for more suggestions. This one is the best you can get with all the features and a warranty of 10 years.

2. Corsair HX1200

Platinum rated, 1200w PSU

Corsair HX1200

SPECIFICATIONS
  • Wattage: 1200w
  • Efficiency: 80+ Platinum
  • Modularity: Fully Modular
WHY BUY?
  • Price
  • Mostly Silent
WHY AVOID?
  • No Monitoring Software

The HX1200i is an 80+ Platinum rated power supply. It’s a fully modular power supply using Japanese capacitors, which ensures the best performance. It’s the best power supply in the 1200 watts range.

Corsair HX1200 stands to be one of the best 1200w PSU among the best powers supply units of 2022.

You will almost get all the same features in PSU’s from different companies. Still, Corsair is durable with an impressive 10 years warranty and their state of the art customer service. Sometimes these things save your back.

Adding a 1200 watt power supply in this guide is that sometimes people want to get a high wattage power supply although they don’t need it. In that case, you can always choose a 1200 watt power supply instead of going to 1500w or 1600w, which are very costly.

The HX1200 is 80+ Platinum rated, which means it is highly efficient, giving above 90% efficiency.

It does not have a digital circuitry for using the monitoring software by Corsair. Sometimes people just don’t want the monitoring stuff because connecting an extra cable to the motherboard is messy and hectic. This also makes it a few bucks cheaper than other variants which have the monitoring functionality.

This Corsair power supply unit is fully modular, comes with a range of connectors and cables and is dead silent when there is no high load.

Finally, under the hood, it has Japanese capacitors that don’t degrade so easily.

• OVP (Overvoltage protection)
• UVP (Under voltage protection)
• OPP (Over Power protection)
• SCP (Short Circuit protection)
• OCP (Over Current protection)
• OTP (Over Temperature protection)
• SP (Surge protection)
• ICP (Inrush Current protection)

One may say that this PSU has got no special features that bring it to the second position, but it has everything that a 1200 watt PSU needs to have. Functionality wise it is awesome, and the fact that it is from Corsair makes it a durable and reliable PSU.

3. Seasonic PRIME TX-1000

Best Performance, Quality Build

Seasonic PRIME TX-1000

SPECIFICATIONS
  • Wattage: 1000w
  • Efficiency: 80+ Titanium
  • Modularity: Fully Modular
WHY BUY?
  • Loads of Cables
  • Quality Components
WHY AVOID?
  • Pricier

With its superb build quality and amazing base platform, Seasonic PRIME TX-1000 is one of the best power supplies this year. A whopping 12 years of warranty, clean soldering and the use of Japanese capacitors is proof of quality in this PSU. Seasonic is a widely popular name for power supplies and similar components, and no doubt they have kept their integrity here as well. With 80+ Titanium rating, high-quality components and silent operation under loads make it one amazing PC component to own. One does not necessarily need a 1000w PSU. However, if you have a heavy-duty graphics card, especially the new RTX series, it is always good to above what the graphics card recommends. For its protection mechanisms, as always, all the best PSUs have these.

• OVP (Overvoltage protection)
• UVP (Under voltage protection)
• OPP (Over Power protection)
• SCP (Short Circuit protection)
• OCP (Over Current protection)
• OTP (Over Temperature protection)

4. EVGA Supernova 1000 T2

Best 1000w PSU

EVGA Supernova 1000 T2

SPECIFICATIONS
  • Wattage: 1000w
  • Efficiency: 80+ Titanium
  • Modularity: Fully Modular
WHY BUY?
  • ECO Mode
  • NVDIA SLI Ready
WHY AVOID?
  • Noise Under Load

EVGA always rocks among power supplies. The same is the case in the 1000 watts range. The 1000 T2 by EVGA is the best performing power supply and is good on budget compared to performance.

In the 1000w category of power supplies, EVGA Supernova 1000 T2 is the best 1000 watt power supply.

EVGA is well known for developing amazing power supplies and is one of the widely used PSU brands.

Efficiency wise it is rated as 80+ Titanium which makes it over 94% efficient.

It is fully modular and so becomes portable and easy to use. Also, it is NVIDIA SLI ready, so you can use multiple graphics cards, and it will bear the burden easily for you.

EVGA mainly adds the ECO-friendly feature to their power supplies. This best 1000w PSU also has it. You can always switch to ECO mode when you want.

The fan operates at semi-fan or even fanless mode when at low or medium load. This saves you from hearing fan noise every time. It will only be noisy when you really put a high load and put it to stress.

This beast also comes with a 10 years limited warranty.

• OVP (Overvoltage protection)
• UVP (Under voltage protection)
• OPP (Over Power protection)
• SCP (Short Circuit protection)
• OCP (Over Current protection)

EVGA, as always, comes with great power supplies for PC, but the fact that this PSU is SLI ready and comes with an ECO mode makes it one of the best 1000w power supply. It is Titanium rated, so all your electricity is used where it is supposed to be, no energy is spoiled.

5. Corsair AX850

Best Value Power Supply

Corsair AX850

SPECIFICATIONS
  • Wattage: 850w
  • Efficiency: 80+ Gold
  • Modularity: Fully Modular
WHY BUY?
  • Powerful
  • Reliable
WHY AVOID?
  • Price

Even though the Corsair AX850 will urge you to pay a handy price, but how is that possible that you ask for power & efficiency and the AX850 never provides. It is one of the most powerful power supply unit in the Corsair lineup, pushing efficiency boundaries to some other level. The Corsair, for so long, has been famous for bringing true masterpieces to the market with a warranty that provides enough peace of mind as well. The Corsair AX850 costs around $398 but provides enough power with perfect voltage regulations and the minutest noise. It ideally ensures power consistently around the unit.

Specification-wise, the Corsair AX850 is perfect from every perspective paying enough for its price. This amazing PSU is 80+ Titanium, ensuring the Corsair AX850 delivers 94% of power efficiency, ultimately lowering the noise, extra energy consumption and keeping the temperature as low as possible. The 105-degree Japanese capacitors radiate reliability and uninterrupted power.

The Corsair AX850 is being equipped with enough protection mechanisms to offer your reliability and durability.
• OVP (Overvoltage protection)
• UVP (Under voltage protection)
• OVP (Over Current Protection)
• SCP (Short Circuit protection)

You might be confused as to whether to go for this one or not. Surely yes if you are not short on budget. Corsair AX850 is highly reliable with providing power and efficiency to keep your system up with demanding works. The magnetic side labels can be made customized to perfectly suit your other system internals. The 135mm cooling fan ensures powerful airflow, keeping the system lower under intensive tasks. With this many excellent specifications, you need to think twice before selecting any other.

6. Seasonic Prime 850W

Good Choice for Gamers

Seasonic Prime 850W PSU

SPECIFICATIONS
  • Wattage: 850w
  • Efficiency: 80+ Titanium
  • Modularity: Fully Modular
WHY BUY?
  • Protection
  • 6 PCIe connector slots
WHY AVOID?
  • Connector Length

Seasonic power supplies are always well-performing. But most of the time, they have a slightly higher price tag. Seasonic Prime 850w also falls into the same category.

Seasonic Prime 850W is a High End, Stable Power Supply 2022.

A fully modular, high-efficiency, and nicely performing titanium power supply that is perfect for gaming.

What makes it one of the best 850 watt PSUs? It can run most SLI and Crossfire builds and make short work of any hardware you throw at it.

It is a very high-end, best power supply that focuses on low heat and power wastage and is Titanium rated.

Best of all, you get it at the price of some gold and platinum power supplies.

Seasonic’s Prime 850 is an excellent PC Power and is an amazing PSU unlike no other.
Receiving 4.4 stars out of 5, this power supply is well received by the higher-end gaming and the mining community.

It is rated at 80+ Titanium, it has an efficiency rating of above 90% with an operating temperature of 0-50° Centigrade.

The Seasonic Prime 850W also comes equipped with a 135-mm fluid dynamic bearing fan and weighs 2KG (4.41 lb.)

It is also fully modular, and the included cables are some of the best we’ve seen. Coming with 3 included 8 + 2 pin PCIe cables, which are 6 available, you can easily connect multiple cards for a mining rig.

It’s also capable of dashing out 70 Amps on the 12-Watt rail, making it perfect for running SLI / Crossfire.

Based on its Voltage Control, it is exceptionally efficient and keeping the load regulated. It does so much better than its competitors.

• OVP (Overvoltage protection)
• UVP (Under voltage protection)
• OPP (Over Power protection)
• SCP (Short Circuit protection)
• OTP (over-temperature protection)
• SP (Surge protection)

CTUVus, TUV, CB, CCC, BSMI, EAC

While this power supply is at the higher end of the spectrum, it is extremely efficient if you’re looking for a high-end, extremely stable and professional power supply. This is one of the best power supplies we have reviewed to date. Besides its perfect stability to your components, it is extremely efficient. It has a relatively good price to performance ratio, great build quality, and a nice amount of connections that make it perfect for miners and gamers.

7. Corsair SF750

Top Rated Corsair PSU

Corsair SF750

SPECIFICATIONS
  • Wattage: 750w
  • Efficiency: 80+ Gold
  • Modularity: Fully Modular
WHY BUY?
  • Price Performance Value
  • Battery
WHY AVOID?
  • Weight

Next coming on the list of best power supply units is the Corsair SF750 series unprecedented power supply unit. The said power supply is greatly efficient and strives hard to level the power consumption of a system.

Corsair SF750 is appreciated by the experts for its amazing performance under intensive workloads, keeps the system’s temperature low with advanced heat dissipation techniques.

Even though it comes with a premium price tag, the Power Supply, but when it comes to performance, the Corsair SF750 indeed is a beast providing reliable and robust performance.

This top-rated power supply unit don’t produce any disturbing noise with its 92mm cooling fan that don’t spin until and unless you need it. The 105 degree high electrolytic capacitors make the Corsair SF750 a reliable and trustworthy PSU. The PSU comes with a fully modular cable and SFX to ATX bracket, making it easy to install in any compatible ATX case.

If you’re concerned about your components, here’s a list of the safety ratings and the protection mechanisms in this computer gaming power supply.
• OVP (Overvoltage protection)
• UVP (Over Current Protection)
• SCP (Short Circuit protection)
• OTP (Over temperature protection)

If you can pay slightly more, don’t look further for anything except the Corsair SF750. One of the finest quality power supply units ensures high performance with outstanding and highly reliable internals. Building a gaming rig for professional gamers is no longer a hectic job if you have this much interesting and powerful equipment’s available in the market.

8. Corsair RM750x

Fully Modular 750w PSU

Corsair RM 750x PSU

SPECIFICATIONS
  • Wattage: 750w
  • Efficiency: 80+ Gold
  • Modularity: Fully Modular
WHY BUY?
  • Performance
  • Design and Looks
WHY AVOID?
  • Ports
  • Battery

750 watts is the widely used range in power supplies. That’s because it works for most of the tasks. RM750x by Corsair hits the top position and becomes best power supply among 750 watt PSUs.

Corsair RM750x stands at the top of the best 750w PSU list and is the best budget gaming power supply.

Compared to its competitors, namely the Corsair RMi series and the EVGA Supernova G series, this power supply packs a punch in terms of performance per dollar and keeping a tight leash on voltage. An excellent performing power supply provides Performance Per Dollar at an astonishing 154 / $ ratio.

This gaming PSU can run all the current generation graphics cards and systems with support for SLI and Crossfire.

If you’re looking to run a crossfire Rx VEGA, on the other hand, you may want to consider getting the 850 or 1000-Watt versions of this PSU.

Rated at 80+ gold, this PC Power device supports an inherent Zero RPM Fan mode that allows it to turn off the fan when a certain temperature threshold is not reached, set at 40° C. With a 135mm Rifle Bearing fan that boasts long life and consistent performance.

The RM750x is worth buying if you want a PSU to handle 62.5 Watts at 12-Watt Rail at a great price. Being one of the best prices for relative performing PC Power supplies on the market, you can crossfire 1080Tis and 1080s without a problem.

If you’re concerned about your components, here’s a list of the safety ratings and the protection mechanisms in this computer gaming power supply.
• OVP (Overvoltage protection)
• UVP (Under voltage protection)
• OPP (Over Power protection)
• SCP (Short Circuit protection)
• OTP (over-temperature protection)

FCC, ICES, CE, UL / CUL, CSA, C-Tick/RCM, TUV, CB, CU, KC Mark, RoHS, WEEE, RoHS (China), REACH.

If you’re wondering if the Corsair RM750x is worth buying, then you need to consider your needs. It is excellent for gamers who want the best Price to Performance rating, voltage control, and safety mechanisms to protect their components as a gaming power supply. It works best with all graphics cards for gamers. Conclusively, this desktop Power supply is a perfect blend of good performance, great value and a really lovely overall voltage regulation, especially on lower rails.

9. Seasonic Snow Silent 750W

Powerful but Expensive

Seasonic Snow Silent 750 Titanium

SPECIFICATIONS
  • Wattage: 750w
  • Efficiency: 80+ Titanium
  • Modularity: Fully Modular
WHY BUY?
  • Silent
  • Semi Passive
WHY AVOID?
  • Price

The Snow Silent 750w by Seasonic is a nicely designed PSU and looks excellent within any CPU casing. Previously, a platinum version of the same PSU was reviewed, which we have removed now. This titanium standard is more efficient and has the guts to supply power to your power thirsty components. Additionally, performance-wise it is semi-passive and works dead silent.

Seasonic Snow Silent is the best 750-watt power supply which is silent yet efficient.

Similar to the 1000W variant, the 750W snow silent power supply is a very high-rated titanium efficiency fully modular power supply with a maximum operating temperature (full load) of 50° C.

It comes in totally white, which is why it has been named snow. And for this reason, it becomes a good one for white PC builds. However you can add to the black one too, it might give a good look peculiarly. Other than that, it has a semi-passive operation which makes it silent in use for the most part. And not to forget it has “PREMIUM HYBRID FAN CONTROL”, which enables you to keep the fan level at a minimum. This way, no noise and neither is unwanted heat coming out of your PC.

Using this beast here, you could SLI two newest gen (1000 series) Nvidia graphics cards like the GTX 1080 or even the 1080 Ti, but you will have trouble with the Vega 64 and 56 by AMD. So make sure what you will be used alongside.

A 135mm fluid dynamic bearing fan has an 80 Plus titanium efficiency, which means it will have an efficiency over 92% – 94%. Besides, you get 12 years of warranty alongside an amazing 50,000 hours life expectancy and some of the most necessary protection mechanisms mentioned below. Also, it is capable of dashing out 62 Amps on the 12-volt rail.

• OVP (Overvoltage protection)
• UVP (Under voltage protection)
• OPP (Over Power protection)
• SCP (Short Circuit protection)
• OTP (Over Temperature Protection)
• OCP (Over Current Protection)

CTUVus, TUV, CB, CCC, CE, FCC, C-tick

You would love the way it keeps tight voltage and load regulation. It is the type of component which will rarely annoy you. It always is up to the mark. Performance-wise we discussed everything above and the design as well as a stunning one for white PC builds. It may cost a few bucks higher than its competitors in the same efficiency range, but this one is definitely worth it.

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10. Thermaltake Grand RGB 750W

Budget RGB PSU

Thermaltake Toughpower Grand RGB 750W

SPECIFICATIONS
  • Wattage: 750w
  • Efficiency: 80+ Gold
  • Modularity: Fully Modular
WHY BUY?
  • Price
  • Ripple Supression
WHY AVOID?
  • Single EPS connector

Thermaltake as the pioneer who incorporates RGB lights into PSUs has launched the Thermaltake Toughpower Grand RGB Gold Series. Coming with a pre-installed, patented 256 Colors Riing 14 RGB fan with 5 lighting modes to choose from and built-in memory. Featuring capacities ranging from 650W to 850W Plus Gold certification, Toughpower Grand RGB Series adopts the highest quality components and fully modular design that always accommodate any mainstream build under any circumstances. The TPG-0750F is highly efficient and has excellent ripple suppression. It is definitely worthy of your attention given its good pricing scheme, the Japanese caps, and the HDB fan.

The Thermaltake 750W is equipped with a 256-colour Riing fan measuring 140mm in diameter. There are five lighting models, and thanks to a built-in memory unit, that can “remember” the last setting. Besides manual control, there is the option for custom RGB lighting since Thermaltake provided compatibility with popular RGB-ready mainboards, including models from Asus, MSI, Gigabyte, AsRock, and Biostar.

A 140mm HBD Riing fan uses blades designed for high static pressure requirements, offering increased airflow to the PSU’s internals. The hydraulic bearing augments reliability over time and also helps reduce operating noise. Further, Thermaltake uses rubber pads on the fan frame’s corner to absorb vibrations. The minor rails have more than 100W combined capacity, while the +12V rail can deliver 62.5A. It’s strong enough to support a couple of high-end graphics cards, to be sure. Finally, the 5VSB fence is a little bit stronger than what we are used to.

• OVP (Overvoltage protection)
• OCP (Over Current protection)
• UVP (Under voltage protection)
• OPP (Over Power protection)
• SCP (Short Circuit protection)
• OTP (over-temperature protection)

Thermaltake Toughpower Grand RGB 750W is a highly efficient and silent power supply with good ripple suppression, HDB fans, and Japanese caps. It also features RGB lighting, which its primary opponents (Corsair RM750x and Seasonic focus plus Gold 750w) lack.

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Frequently Asked Questions

What is 80+ Rating Certification?

80+ is a certification program which tells us if a power supply is 80% efficient under 20%, 50% and 100% loads. Power supplies from brands who claim to have passed the 80+ test are actually tested in independent labs. Th levels in this rating mechanism are, 80 plus, 80 plus bronze, 80 plus silver, 80 plus gold, 80 plus platinum and 80 plus titanium. If you do not understand and get confused in all this, just make sure that the PSU you buy is 80+ certified and is higher up among these mentioned levels.

How many watts do I need on my PSU?

There is no single answer to this. Every system is different, and each hardware component of a PC has its own recommended minimum wattage. When calculating the required power supply for your PC, the best thing to do is to find an online PSU wattage calculator and determine how many watts you need. Then add another 100 extra watts to the final value. This way, you always have more wattage than necessary for the system, and you are always on the safe side.

What are power supply safety and protection mechanisms?

Power supply in your PC deals with current and delivering power to all your components. This makes it a risky component because any issues will directly affect all other components connected to it. Therefore, to stay on the safe side, make sure the PSU you buy has all or most of the listed safety and protection mechanisms.

UVP (Under Voltage Protection)
OPP (Over Power Protection)
OCP (Over Current Protection)
OTP (Over Temperature Protection)
SP (Surge Protection)
SCP (Short Circuit Protection)
OVP (Over Voltage Protection)

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