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SeaSonic M12II 520 Bronze EVO Edition 520W ATX12V v2.3 / EPS 12V v2.91 SLI 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply

Ships from United States.

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  • ATX12V / EPS12V
  • Full Modular
  • 80 PLUS BRONZE Certified
  • 100 - 240 V 50/60 Hz
  • +3.3V@24A, +5V@24A, +12V Combined@40A, -12V@0.8A, +5VSB@2.5A

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
 
 

SeaSonic Electronics launches the M12II "Bronze" Series, the new and upgraded version of the M12II Series in response to the growing demand and anticipation for more energy-efficient products. The M12II Bronze Series inherits the same output and wattage options as well as the superb quality and ultimate silence from the M12II Series. The M12II Bronze Series, available in 520W and 620W, offers buyers with a mid-range power output solution with cable management to meet their exact system needs—cable management is now made easier than ever.

Features
SeaSonic M12II

The M12II Bronze Series achieves the 80 PLUS® Bronze standard of at least 82%, 85% and 82% efficiency under 20%, 50% and 100% operating loads respectively. Combined with Active Power Factor correction (Active PFC), the M12II Bronze reduces energy waste, boosts power efficiency and more importantly, helps users save energy and reduce their electricity bill.

SeaSonic M12II

While upgrading in efficiency, the M12II Bronze Series maintains an advanced design and quality components from the past M12II line. Such designs and components including Double Forward Converter design, Smart and Silent Fan Control and highly reliable Japanese-brand capacitor also boost the overall performance in stability and silence. The M12II Bronze Series is available in a standard ATX Form Factor and in wattages that are beneficial for a PC system. With the all-in-one cabling design and EPS connectors, the M12II Bronze Series is geared to support IPC and server systems and as well, both 6P and 8P PCI-E connector for latest and high end dual graphic cards. Moreover, the modular design also provides a flexible solution for orderly cable management.

SeaSonic M12II

The M12II Bronze Series is made reliable by featuring safety regulations such as Over Voltage Protection (OVP), Short Circuit Protection (SCP), and Over Power Protection (OPP). Major safety and EMC directives and as well, the environmental certifications RoHS and WEEE increase safety and usage reliability for the users.

Special Features

  1. Super High Efficiency (Up to 87%)
  2. Highly Reliable 221°F Aluminum Electrolytic Capacitors
  3. Ample +12V Outputs
  4. Active Power Factor Correction (99% PF Typical)
  5. Double Forward Converter Design
  6. SMART and SILENT FAN CONTROL (S²FC)
  7. 12cm Ball-Bearing Cooling Fan
  8. Soft-Mount Rubber Cushions
  9. Universal Video Card Support
  10. All-in-One DC-Cabling Design
  11. Detachable Modular Cables
  12. Patented Easy-Swap Connectors
  13. Universal AC Input (Full Range)
  14. Ultra Ventilation (Honeycomb Structure)
What's in the Box
SeaSonic M12II

Learn more about the SeaSonic USA M12II 520 Evo Editon

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details
  • Return Policies
  • We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1, 2019 and December 24, 2019 you will have until January 31, 2020 to return your product. There's nothing additional that you have to do!
    • Return for refund until: January 31, 2020
    • Return for replacement until: January 31, 2020
  • This item is covered by Newegg.com's Extended Holiday Return Policy.
Ownership: more than 1 year
Verified Owner
5/ 5
Perfect Power Supply 12/10/2019 1:27:52 AM

Pros: Modular, Gives power to everything that I use such as Motherboard, 2 SSDs, 2 Hard Drives (4 Drives Total), LG Blu-Ray Optical Disc Drive, GTX 1060 6GB with its 6-pin connector, 5 fans (all with Blue LEDs, especially the CPU's Cryorig H7 Quad Lumi), DeepCool LED Strips (two), Case Lights (HDD, Power Indicator) and even 16GB DDR4 RAM with LED.

Cons: I cannot gripe about this product. I want to, but there is nothing wrong with it.

Overall Review: Having used SeaSonic in two different builds for only two years. I have not had an issue with their Power Supply Units.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
1/ 5
Worked for a few days and now dead. 12/9/2019 8:25:43 PM

Pros: Few days of fun.

Overall Review: Computer suddenly shut off, from my testing and all, the problem lays in the PSU. It lasted a few days and now it's useless. Not worth it.

Did you find this review helpful?
Ownership: 1 day to 1 week
Verified Owner
5/ 5
fully modular and cheap 11/23/2019 6:05:39 PM

Pros: modular and goes on sale for a steal. good for a mid range workstation build auto cad inventor or solidworks

Cons: cant find any for my purposes works well. Mabye not for a high end gaming or workstation

Overall Review: good price good product wokrs flawlessly

1 out of 1 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Works great 11/23/2019 3:01:40 PM

Pros: Does everything I need it to without issue so far

Cons: None

Overall Review: MSI B450 Gaming Plus MB
AMD Ryzen 5 2600 - 6 core CPU 3.4ghz
16gb TridentZ RGB DDR4 3200mhz
MSI GeForce GTX 1660 Ventus
500gb WD SSD 250gb Samsung SSD
Rosewill gaming case
Sea sonic 520wt PSU

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
3/ 5
LOUD 11/17/2019 2:34:33 PM

Pros: Cables are easy to manipulate
Modular

Cons: Very loud

Overall Review: Good budget PSU

Did you find this review helpful?
Manufacturer Response:
Hello Evan,

Thank you for your comment and sorry for this issue with the noise. Would it be possible for you to email us more information (PC specs, serial number of the PSU) in order to see what is causing such issue: newegg@seasonic.com.

Once again, sorry for the inconvenience and we hope to be in touch in order to assist you the best regarding this issue.
Thank you.

Best Regards,
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Nice PSU! 10/27/2019 11:02:13 AM

Overall Review: I picked up this power supply while on sale. It is fully modular and comes with all flat ribbon-like cables, with the exception of the 24pin being sleeved and round, thus making it easier to hide and tuck these wires in cramped quarters behind the motherboard. Have been using this for a few months now with no issues.

2 out of 2 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
good value product from a trusted company 10/22/2019 4:14:08 AM

Pros: Fully Modular
Good Value
Good instructions
Worked right out of the box

Cons: GPU cable is only for single power. Not a flaw, but good to know depending on setup.

Overall Review: Product was as expected. I trust it will work for the life of my build.
GPU cable has a single connector on it. If you have a double connector required on one slot, you might want to check if 2 separate cables can be connected to a single video card. The fancier one I ordered for a friend had 2 connectors on a single cable. This is a value product, and with rebate, exceeded my expectation. If I have any issues, I'll update this review.

1 out of 1 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Solid Offering 10/3/2019 9:11:18 PM

Pros: Modular,
Wrapped power lines,
Quiet operation,
Extremely affordable with rebate

Cons: There was a little bit of guesswork with the cords at first, but in about 15 minutes I had swapped out my old power supply with this and really enjoy it.

Overall Review: This is my first build using a modular power supply, and I'm glad I made this purchase.
The power supply worked like a charm and the wrapping on the power cords are attractive.
With my video card and cpu fan on I really can't even tell it is there.
Thanks for offering this power supply at a reasonable price. (mail in rebate was icing on the cake)

1 out of 1 people found this review helpful. Did you?
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