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SeaSonic USA > 
Item#: N82E16817151094

SeaSonic S12II 520 Bronze 520W ATX12V V2.3 / EPS 12V V2.91 80 PLUS BRONZE Certified Active PFC SeaSonic USA S12II 520 Bronze Power Supply

  • ATX12V V2.3 / EPS 12V V2.91
  • 80 PLUS BRONZE Certified
  • 100 - 240 V 50/60 Hz
  • +3.3V@24A, +5V@24A, +12V@40A, -12V@0.8A, +5VSB@2.5A
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SeaSonic USA S12II 520 Bronze

Today, Sea Sonic Electronics launches the S12II "Bronze" Series - the updated version of the award winning S12II Series - to meet the growing demand for high efficiency and yet price-competitive power supplies.

The S12II Bronze Series achieves the 80 PLUS® Bronze standard of at least 82%, 85% and 82% power usage efficiency at 20%, 50% and 100% operating loads respectively. This, combined with Active Power Factor Correction, enables the S12II Bronze to reduce energy waste, boost power efficiency and more importantly, reduce energy costs for you.

In addition to the efficiency upgrade, the S12II Bronze Series maintains the strong foundations of the S12II series. Important features such as the stable and proven Double Forward Converter circuit design, the industry-leading Smart and Silent Fan Control (S2FC) and the use of high reliability, Japanese-brand capacitors are all carried forward in the "Bronze."

The S12II Bronze Series, similar to its predecessors, is available in the standard ATX form factor and in wattages that are most common for a PC system. In addition to the all-in-one cabling design, the 520W and 620W models come with additional EPS connectors for IPC and server systems, and supports both 6P and 8P PCI-E connectors for the most current and high-end dual graphic cards.


1. AC Input and DC Output Voltages (100V ~ 240V, 50Hz / 60Hz )


2. Wire Configuration

3. Dimensions (HxWxD): 86mm x 140mm x 150mm

4. Total Protection

Over Voltage / Over Power / Short Circuit Protection
Total protection for your power supply, your system, and you.

5. Operating Environment

Operating temperature: 32°F to 122°F (0°C to 50°C). Relative Humidity: 20% to 80%.
(The rated power will reduce from 100% to 80% from 104°F to 122°F (40°C to 50°C)
 
 

Learn more about the SeaSonic USA S12II 520 Bronze

Quick Info

Warranty

  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years


Customer Reviews of the SeaSonic USA S12II 520 Bronze

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  • Skyler H.
  • 11/30/2014 2:23:42 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsRELIABLE !

Pros: In almost every build I've done for others and all my own builds I use SeaSonic !
Never ever let me down !

Cons: NONE NADA NILL !

Did you find this review helpful? Yes No

  • Phil B.
  • 10/13/2014 6:03:46 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat PSU

Pros: -Very little fluctuation in voltages
-plenty of connectors

Cons: -none

Other Thoughts: I bought this due to a series of reviews showing its excellent voltage regulation. I have to agree with them. A lot of the more recognized brands are much worse because they do not produce their own PSUs. Seasonic does and other brands regularly rebrand Seasonic PSUs.

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  • Timothy W.
  • 8/19/2014 5:05:46 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsDoes everything a PSU should do.

Pros: Reliable, easy to use, electrically efficient, fits my case well (Bitfenix Shinobi)

Cons: Not modular (but you know that going in, so whatever).

Other Thoughts: PSU reviews are fairly simple. Seasonic products, for me at least, have always worked right out of the box, consistently, and without issue for a long time. I've owned this PSU for 15 months now, so I can't speak to super longevity, but I've been running a system with about 420 watts TDP, and have had 0 problems. I've got an Intel 3570k, a Radeon HD 7950, and both are overclocked without problems. I wish the cables had been modular for slightly easier setup, but they certainly have a modular version available in their M12II series, so get that if that's important.

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  • Gregory M.
  • 7/20/2014 10:44:31 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsClass rig, high number of connectors

Pros: I upgraded my wife's workstation with a larger video card so I also needed a higher wattage PS. No problems and running for almost 2 full years with the unit never turned off. Plus it is a classy looking rig, and no want of needed connectors. I bought the SeaSonic because of superior ratings and reviews. Not disappointed at all.

Cons: None.

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  • Giuseppe G.
  • 6/16/2014 6:48:41 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsMakes Buzzing Noises Occasionally

Pros: - Very Quiet
- It works
- Comes with a 5-year warranty

Cons: - Makes buzzing noises occasionally
- Screw holes do not line up (Corsair Carbide 500R)

Other Thoughts: I think this PSU is OK, but if you're going with a Corsair case I'd rather get another PSU brand.

Manufacturer Response:

Hi Giuseppe,
In terms of buzzing noise, please send a mail to newegg@seasonicus.com and please let us know more details. Please check to make sure your ERP Stand By Energy Savings modes are all ENABLED in your BIOS and possibly you will need to disable VSync in your VGA.
As for mount holes not lining up, the power supply case mount holes are made in accordance to Intel specifications and normally speaking, the case holes should be oval shaped to allow for tolerance.
Thank you

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  • Daniel M.
  • 4/28/2014 6:11:59 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsIts Seasonic

Pros: This is the second one of this model I've purchased, The first was the modular version back in 2010. It's still going strong with a MSI 890, Phenom2 x4, ATI 5770, and 4 GB 1333 Mhz all overclocked for years. Have used many Seasonic PSU's never had a problem. Silent like all the 120mm versions.

Cons: Kinda wish I got the modular version, Seasonic doesn't skimp, The cables are long and thick.

Other Thoughts: Lovely packaging as usual Seasonic, always reminds me of Crown Royal HaHa.

Did you find this review helpful? Yes No

  • Anonymous
  • 4/14/2014 5:29:52 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsQuiet and cool

Pros: Have two of these running Haswell (Pentium and i3)-based PCs. Extremely quiet and efficient with a fantastic 5-year warranty. No complaints.

Cons: None.

1 out of 1 people found this review helpful. Did you? Yes No

  • Brien S.
  • 4/9/2014 4:37:31 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsNice

Pros: Very nice construction with a quality feel and look. It runs nice and quiet as well.

Cons: none

1 out of 1 people found this review helpful. Did you? Yes No

  • Jared I.
  • 3/28/2014 9:41:41 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggs

Pros: Good price/performance value. Quiet.

Cons: Cables are pretty short.

Other Thoughts: This is a great power supply but I have to knock it down an egg because the cables are pretty short. It's obvious this power supply was designed to be mounted on the bottom of a case where its closer to the video cards and hard drives.

Did you find this review helpful? Yes No

  • Douglas M.
  • 3/23/2014 11:04:12 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsSimply the best

Pros: It's SeaSonic they are the standard against which others are measured. If you do some web searching you will discover that many of the top tier power supplies are indeed made for other companies by SeaSonic.

Cons: zip, zilch, nada

Other Thoughts: Don't skimp on your power supply it's the heart of your system.

1 out of 1 people found this review helpful. Did you? Yes No

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Item#: N82E16817151094
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