20 Best Seasonic 520 [2025]

Are you looking for the best seasonic 520? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling seasonic 520.

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# Preview Product
1 520W Seasonic SS-520H1U 1U 520W EPS12V PFC Single Power Supply SS520H1U 520W Seasonic SS-520H1U 1U 520W EPS12V PFC Single Power Supply SS520H1U
2 Seasonic PRIME 1000 Titanium SSR-1000TR 1000W 80+ Titanium ATX12V & EPS12V Full Modular 135mm FDB... Seasonic PRIME 1000 Titanium SSR-1000TR 1000W 80+ Titanium ATX12V & EPS12V Full Modular 135mm FDB...
3 Seasonic PRIME 1300 Gold SSR-1300GD 1300W 80+ Gold ATX12V & EPS12V Full Modular 135mm FDB Fan Power... Seasonic PRIME 1300 Gold SSR-1300GD 1300W 80+ Gold ATX12V & EPS12V Full Modular 135mm FDB Fan...
4 PFC-100 Platinum Series Camo, Kryptek Highlander, A PFC-100 Platinum Series Camo, Kryptek Highlander, A
5 Seasonic Flagship Prime Series SSR-1000PD 1000W Platinum Full Modular ATX12V & EPS12V 135mm FDB Fan... Seasonic Flagship Prime Series SSR-1000PD 1000W Platinum Full Modular ATX12V & EPS12V 135mm FDB...
6 Seasonic PRIME 1000 Platinum SSR-1000PD 1000W 80+ Platinum ATX12V & EPS12V Full Modular 135mm FDB... Seasonic PRIME 1000 Platinum SSR-1000PD 1000W 80+ Platinum ATX12V & EPS12V Full Modular 135mm FDB...
7 Seasonic FOCUS Plus 750 Platinum SSR-750PX 750W 80+ Platinum ATX12V & EPS12V Full Modular 120mm FDB... Seasonic FOCUS Plus 750 Platinum SSR-750PX 750W 80+ Platinum ATX12V & EPS12V Full Modular 120mm...
8 Seasonic PRIME 1300 Platinum SSR-1300PD 1300W 80+ Platinum ATX12V & EPS12V Full Modular 135mm FDB... Seasonic PRIME 1300 Platinum SSR-1300PD 1300W 80+ Platinum ATX12V & EPS12V Full Modular 135mm FDB...
9 Seasonic S12III 500 SSR-500GB3 500W 80+ Bronze ATX12V & EPS12V Direct Cable Wire Output Smart &... Seasonic S12III 500 SSR-500GB3 500W 80+ Bronze ATX12V & EPS12V Direct Cable Wire Output Smart &...
10 Saint Asonia White Logo Black Baseball Hat Three Days Grace (SM/M) Saint Asonia White Logo Black Baseball Hat Three Days Grace (SM/M)
11 Seasonic FOCUS Plus 850 Gold SSR-850FX 850W 80+ Gold ATX12V & EPS12V Full Modular 120mm FDB Fan... Seasonic FOCUS Plus 850 Gold SSR-850FX 850W 80+ Gold ATX12V & EPS12V Full Modular 120mm FDB Fan...
12 Seasonic FOCUS GX-650, 650W 80+ Gold, Full-Modular, Fan Control in Fanless, Silent, and Cooling... Seasonic FOCUS GX-650, 650W 80+ Gold, Full-Modular, Fan Control in Fanless, Silent, and Cooling...
13 Seasonic PRIME PX-850, 850W 80+ Platinum, Full Modular, Fan Control in Fanless, Silent, and Cooling... Seasonic PRIME PX-850, 850W 80+ Platinum, Full Modular, Fan Control in Fanless, Silent, and...
14 Seasonic FOCUS Plus 850 Gold SSR-850FX 850W 80+ Gold ATX12V & EPS12V Full Modular 120mm FDB Fan... Seasonic FOCUS Plus 850 Gold SSR-850FX 850W 80+ Gold ATX12V & EPS12V Full Modular 120mm FDB Fan...
15 Seasonic FOCUS 750 Gold SSR-750FM 750W 80+ Gold ATX12V & EPS12V Semi-Modular 7 Year Warranty Compact... Seasonic FOCUS 750 Gold SSR-750FM 750W 80+ Gold ATX12V & EPS12V Semi-Modular 7 Year Warranty...
16 Seasonic FOCUS Plus 550 Gold SSR-550FX 550W 80+ ATX12V & EPS12V Full 120mm FDB Fan Compact 140 mm... Seasonic FOCUS Plus 550 Gold SSR-550FX 550W 80+ ATX12V & EPS12V Full 120mm FDB Fan Compact 140 mm...
Bestseller No. 1
Bestseller No. 2
Seasonic PRIME 1000 Titanium SSR-1000TR 1000W 80+ Titanium ATX12V & EPS12V Full Modular 135mm FDB...
  • MICRO TOLERANCE LOAD REGULATION (0.5 %); Seasonic's latest design keeps the output voltage within a very tight range
  • FULL MODULAR - use only the cables you need to reduce clutter and improve airflow for a better ventilated system.
  • 80 PLUS TITANIUM - 92% efficient at 20% load, 94% efficient at 50% load, 90% efficient at 100% load
  • PREMIUM HYBRID FAN CONTROL; a state-of-the-art fan control that enables users to keep the overall fan noise at the lowest possible level
  • 12 YEAR WARRANTY - Our commitment to superior quality.
Bestseller No. 3
Seasonic PRIME 1300 Gold SSR-1300GD 1300W 80+ Gold ATX12V & EPS12V Full Modular 135mm FDB Fan Power...
  • MICRO TOLERANCE LOAD REGULATION (0.5 %); This impressive electrical performance and stability makes this power supply an ideal choice for...
  • FULL MODULAR - use only the cables you need to reduce clutter and improve airflow for a better ventilated system.
  • 80 PLUS GOLD - 87% efficient at 20% load, 90% efficient at 50% load, and 87% efficient at 100% load.
  • PREMIUM HYBRID FAN CONTROL; a state-of-the-art fan control that enables users to keep the overall fan noise at the lowest possible level.
  • 12 YEAR WARRANTY - Our commitment to superior quality.
Bestseller No. 4
PFC-100 Platinum Series Camo, Kryptek Highlander, A
  • 100% polyester
  • Moisture management
  • Structured
  • six-panel
  • mid-profile
Bestseller No. 5
Seasonic Flagship Prime Series SSR-1000PD 1000W Platinum Full Modular ATX12V & EPS12V 135mm FDB Fan...
  • High performance Fluid Dynamic Bearing (FDB) fans are designed to take advantage of the impact absorbance effects of oil
  • The Seasonic PRIME Series is designed with very favorable level of acoustics and it uses carefully selected components and innovative circuit design...
  • Seasonic's latest design keeps the output voltage within a very tight range, achieving under 0.5 % (1 % for 1000 W and above) load regulation
  • Seasonic's engineers have implemented a new design feature, where instead of cables; the back panel and the PCB (Printed Circuit Board) are connected...
  • 10 Years Warranty
Bestseller No. 6
Seasonic PRIME 1000 Platinum SSR-1000PD 1000W 80+ Platinum ATX12V & EPS12V Full Modular 135mm FDB...
  • MICRO TOLERANCE LOAD REGULATION (0.5 %); This impressive electrical performance and stability makes this power supply an ideal choice for...
  • FULL MODULAR - use only the cables you need to reduce clutter and improve airflow for a better ventilated system.
  • 80 PLUS Platinum - 90% efficient at 20% load, 92% efficient at 50% load, and 89% efficient at 100% load.
  • PREMIUM HYBRID FAN CONTROL; a state-of-the-art fan control that enables users to keep the overall fan noise at the lowest possible level.
  • 12 YEAR WARRANTY - Our commitment to superior quality.
Bestseller No. 7
Seasonic FOCUS Plus 750 Platinum SSR-750PX 750W 80+ Platinum ATX12V & EPS12V Full Modular 120mm FDB...
  • COMPACT SIZE - 140 MM DEEP; High power output to size ratio.
  • FULL MODULAR; use only the cables you need to reduce clutter and improve airflow for a better ventilated system.
  • 80 PLUS PLATINUM; 90% efficient at 20% load, 92% efficient at 50% load, and 89% efficient at 100% load.
  • HYBRID SILENT FAN CONTROL; The industry's first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and...
  • 10 YEAR WARRANTY; Our commitment to superior quality.
Bestseller No. 8
Seasonic PRIME 1300 Platinum SSR-1300PD 1300W 80+ Platinum ATX12V & EPS12V Full Modular 135mm FDB...
  • MICRO TOLERANCE LOAD REGULATION (0.5 %); This impressive electrical performance and stability makes this power supply an ideal choice for...
  • FULL MODULAR - use only the cables you need to reduce clutter and improve airflow for a better ventilated system.
  • 80 PLUS Platinum - 90% efficient at 20% load, 92% efficient at 50% load, and 89% efficient at 100% load.
  • PREMIUM HYBRID FAN CONTROL; a state-of-the-art fan control that enables users to keep the overall fan noise at the lowest possible level.
  • 12 YEAR WARRANTY - Our commitment to superior quality.
SaleBestseller No. 9
Seasonic S12III 500 SSR-500GB3 500W 80+ Bronze ATX12V & EPS12V Direct Cable Wire Output Smart &...
  • Fixed cabling - Provides all the necessary cables required for a standard pc.
  • 80 plus Bronze - 82% efficient at 20% load, 85% efficient at 50% load, and 82% efficient at 100% load.
  • 120 mm SLEEVE BEARING FAN; The 120 mm fan inside is regulated by the Seasonic S2FC fan control, which optimizes the fan speed according to the needs...
  • 5 year warranty; Our commitment to superior quality.
Bestseller No. 10
Saint Asonia White Logo Black Baseball Hat Three Days Grace (SM/M)
  • Brand New - Official - Licensed - Authentic
  • Embroidered Logo Design on Front
  • 98% Cotton, 2% Spandex
  • Great for any fan!
Bestseller No. 12
Seasonic FOCUS GX-650, 650W 80+ Gold, Full-Modular, Fan Control in Fanless, Silent, and Cooling...
  • COMPACT SIZE: 140 MM deep fits ALL ATX systems.
  • FULL MODULAR: Use only the cables you need to reduce clutter to maximize airflow for a better ventilated system.
  • 80 PLUS GOLD: Less energy gets wasted during power conversion; Cut down your electricity usage and be Eco-Friendly.
  • PREMIUM HYBRID FAN CONTROL: Unsurpassed silent performance in Fanless Mode. The fan control button at the back of the power supply allows users to...
  • 10 YEAR WORRY-FREE WARRANTY: Our commitment to superior quality.
Bestseller No. 13
Seasonic PRIME PX-850, 850W 80+ Platinum, Full Modular, Fan Control in Fanless, Silent, and Cooling...
  • Micro Tolerance Load Regulation (under 0. 5 %): this impressive electrical performance and stability makes this power supply an ideal choice for...
  • Full modular - use only the cables you need to reduce clutter and improve airflow for a better ventilated system.
  • 80 plus Platinum - less energy gets wasted during power conversion; cut down your electricity usage and be Eco-Friendly..
  • PREMIUM HYBRID FAN CONTROL: Unsurpassed silent performance in Fanless Mode. The fan control button at the back of the power supply allows users to...
  • 12 year worry-free WARRANTY : Our commitment to superior quality.
Bestseller No. 14
Seasonic FOCUS Plus 850 Gold SSR-850FX 850W 80+ Gold ATX12V & EPS12V Full Modular 120mm FDB Fan...
  • COMPACT SIZE - 140 mm DEEP; High power output to size ratio
  • FULL MODULAR; use only the cables you need to reduce clutter and improve airflow for a better ventilated system.
  • 80 PLUS GOLD; 87% efficient at 20% load, 90% efficient at 50% load, and 87% efficient at 100% load.
  • HYBRID SILENT FAN CONTROL; The industry's first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and...
  • 10 YEAR WARRANTY; Our commitment to superior quality.
Bestseller No. 15
Seasonic FOCUS 750 Gold SSR-750FM 750W 80+ Gold ATX12V & EPS12V Semi-Modular 7 Year Warranty Compact...
  • COMPACT SIZE - 140 MM DEEP; High power output to size ratio
  • SEMI-MODULAR; The semi-modular cabling design provides the most common connections while allowing flexibility on the peripherals
  • 80 PLUS GOLD; 87% efficient at 20% load, 90% efficient at 50% load, and 87% efficient at 100% load
  • 120 mm FLUID DYNAMIC BEARING FAN; The 120 mm FDB fan inside is regulated by the Seasonic S2FC fan control, which optimizes the fan speed according to...
  • 7 YEAR WARRANTY; Our commitment to superior quality
Bestseller No. 16
Seasonic FOCUS Plus 550 Gold SSR-550FX 550W 80+ ATX12V & EPS12V Full 120mm FDB Fan Compact 140 mm...
  • COMPACT SIZE - 140 MM DEEP; High power output to size ratio.
  • FULL MODULAR; use only the cables you need to reduce clutter and improve airflow for a better ventilated system.
  • 80 PLUS GOLD; 87% efficient at 20% load, 90% efficient at 50% load, and 87% efficient at 100% load.
  • HYBRID SILENT FAN CONTROL; The industry's first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and...
  • 10 YEAR WARRANTY; Our commitment to superior quality.

Having trouble finding a great seasonic 520?

This problem is well understood by us because we have gone through the entire seasonic 520 research process ourselves, which is why we have put together a comprehensive list of the best seasonic 520s available in the market today.

After hours of searching and using all the models on the market, we have found the best seasonic 520 for 2023. See our ranking below!

How Do You Buy The Best Seasonic 520?

Do you get stressed out thinking about shopping for a great seasonic 520? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching seasonic 520, which is why we have assembled a comprehensive list of the greatest seasonic 520 available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for seasonic 520 that you consider buying. Your questions might include the following:

  • Is it worth buying an seasonic 520?
  • What benefits are there with buying an seasonic 520?
  • What factors deserve consideration when shopping for an effective seasonic 520?
  • Why is it crucial to invest in any seasonic 520, much less the best one?
  • Which seasonic 520 are good in the current market?
  • Where can you find information like this about seasonic 520?

We’re convinced that you likely have far more questions than just these regarding seasonic 520, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for seasonic 520, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible seasonic 520. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an seasonic 520 buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available seasonic 520 currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of seasonic 520 has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an seasonic 520?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your seasonic 520.
  5. Customer Ratings: Number ratings grade seasonic 520 objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their seasonic 520.
  7. Product Quality: You don’t always get what you pay for with an seasonic 520, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an seasonic 520 is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining seasonic 520 information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding seasonic 520 is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: Is the SeaSonic 80 Plus Platinum 92% energy efficient?

A: The title says it all: A fanless 80 PLUS Platinum 92% efficient power supply from Seasonic, the company which pioneered super-quiet power supplies. Can this product meet the expectations of its eagerly awaiting fans?

Q: Is SeaSonic a good PSU brand?

A: Seasonic is a pretty trusted brand and i’ve had no issues as the voltage is well over the requirement for my gaming system (16gb RAM, 1060 gtx, ryzen 5 1600). If you’re building your first build i highly recommend this PSU!

Q: When did the SeaSonic 400W come out?

A: The Seasonic 400W two years ago in Q4 of 2010. Those 90% efficient PSUs swept all other fanless models in every measure of performance. The only serious competition was the and surpassed the Seasonic X series in efficiency. With greater brand presence gauntlet with the Stryker STR-500.