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Item#: N82E16817151093

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

  • ATX12V v2.3 / EPS 12V v2.91
  • Full Modular
  • 80 PLUS BRONZE Certified
  • 100 - 240 V 50/60 Hz
  • +3.3V@24A, +5V@24A, +12V1@20A, +12V2@20A, -12V@0.8A, +5VSB@2.5A
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Customer Reviews of the SeaSonic USA M12II 520 Bronze

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Showing 59 of 59 reviews - Clear Filters

  • SANDEEP G.
  • 1/13/2015 3:57:49 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsSolid Performer

This review is from: SeaSonic M12II 750 SS-750AM2 750W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Full-modular Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Does what it's supposed to do, Excellent price to performance

Cons: none

Did you find this review helpful? Yes No

  • Jonathan L.
  • 12/17/2014 8:18:57 PM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsover two years trouble free

This review is from: SeaSonic M12II 750 SS-750AM2 750W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Full-modular Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: no issues in over two years
price

Cons: none

Did you find this review helpful? Yes No

  • Gregory H.
  • 11/24/2014 7:28:01 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDied in less than 5 months

This review is from: SeaSonic M12II 750 SS-750AM2 750W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Full-modular Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Decent price at the time
quiet

Cons: died in under 5 months

Other Thoughts: Will not power on at all. Paperclip trick fails. Contacted seasonic about an rma and have not gotten any response, non existent customer service. will never buy seasonic again.

Manufacturer Response:

Hi Gergory,
I am sorry for the inconvenience this has caused you. We try our best to ensure top quality and when such incident occur, we will do our best to rectify the issue for you. Please visit www.seasonicusa.com to start the RMA procedure and if you have any questions, please contact me at newegg@seasonicus.com Thank you.

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

  • MYRON W.
  • 11/12/2014 3:47:30 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsIT IS SEASONIC

This review is from: SeaSonic M12II 750 SS-750AM2 750W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Full-modular Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: It is another quality, quiet.PSU. I checked it before installing and have no problems. Easy install and plenty of power. Cablec length is good.

Cons: NONE

Other Thoughts: I always try to buy PSU s manufactured by Seasonic as I have never had 1 fail. Seasonic manufactures PSU s for other brands. Just check the number on the side with the specs.

Manufacturer Response:

Thank you Myron for the support and the very nice review! This is very much appreciated!!!

Did you find this review helpful? Yes No

  • John D.
  • 10/17/2014 4:53:44 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

2 out of 5 eggsTerrible Fan + Support

This review is from: SeaSonic M12II 750 SS-750AM2 750W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Full-modular Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Excellent modular cable setup

Cons: Absolutely terrible fan - loud at idle and even louder at load

Other Thoughts: As another review(s) stated below, the fan on this thing is terrible! It was a big disappointment, as I had the computer all assembled and tidied up, with cable ties, etc., only to discover that the computer was unusable due to the fan noise! I could hear it across the house, in a separate room. It was loud at idle, then got even louder under load. I initially was confused what the source of the noise was, thinking it was the two GTX 780s or case fans, but low-and-behold it was this seasonic 750W PSU. The PSU was bottom mounted in a NZXT case, with plenty of gap between floor and PSU fan intake.

It was a shame, as I was really happy and impressed with the cabling. I had just what I needed, with room for growth. I will say that this was one of the best modular PSUs I have dealt with, in terms of cable selection, length, options, etc. Hopefully the RMA replacement or repaired unit works out, as it was a joy to work with the setup.

Oh, and regarding the RMA and tech-support. You just get an answering machine all day for their tech support, asking to send an email. I submit an RMA, and the approve it right away. So I am sending it back, though I would have like to discuss it with an engineer first. Oh well.

Manufacturer Response:

Hi John,
Our apologies for the inconvenience for the failure of the power supply and I hope our RMA process will soon rectify this issue for you. As for tech support, the best way to contact us is via e-mail as very often, phone tech support can offer very little assistant as the failure with the power supply cannot be fully determined unless the unit is tested by our service center. If you have any questions or concerns, please contact me at newegg@seasonicus.com Thank You.

Did you find this review helpful? Yes No

  • robert w.
  • 9/5/2014 6:59:10 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsHonest Brand

This review is from: SeaSonic M12II 750 SS-750AM2 750W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Full-modular Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Seasonic is one of the very few honest to gosh actual manufacturer of PSUs, Has 5 yr warranty. My last one lasted 5 years and a few months. It is highly regulated and protects my PC from power surges and irregularities.

Cons: none

Other Thoughts: why buy the products of fabless rebadging companies like Corsair when you can get the genuine article straight from the manufacturer? I bought a Corsair and had to return it because it wouldn't run my old AGP graphics card!

Did you find this review helpful? Yes No

  • Anonymous
  • 8/13/2014 8:50:45 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsjust over a year

This review is from: SeaSonic M12II 750 SS-750AM2 750W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Full-modular Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Modular, fair price, steady power output. Easy to install and worked great for a year

Cons: I bought this on 4/4/2013, It died on 8/13/2014. First PSU to ever die on me like this. I researched a lot and every source was saying Seasonic was the best. Well I'm replacing it with a Rosewill now. I will not buy another Seasonic PSU. It should have lasted longer than 15 months.

Manufacturer Response:

Hi, we are sorry to read of your experience with our product. It is possible from time to time, failures can happen but we do our best to produce and delivery products of the utmost quality and performance. May I ask you to please start a RMA process with our USA office and if you have any quesitons or concerns, please contact us anytime at: newegg@seasonicus.com Thank yoiu.

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

  • Rodney H.
  • 8/9/2014 11:55:57 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsGreat power, terrible fan.

This review is from: SeaSonic M12II 750 SS-750AM2 750W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Full-modular Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Underrated (can do about 750W on 12V alone), fully modular with flat black cables, high quality, plenty of cables included.

Cons: Much louder than it should be. It is the loudest part of my system at idle, audible even with headphones on.

Maybe the fan is defective? I don't know. The air it is pushing out isn't even warm, so I don't see why the fan is being so loud.

Other Thoughts: Its a shame this unit has such good test results but is stuck with a terrible fan.

Another thing to note: You can get an XFX P1-750B-BEFX for almost as much as this, which is the exact same as the Seasonic X-Series, which has a fan that turns off and is Gold rated.

Manufacturer Response:

Hi Rodney,
Very sorry for your experience with our power supply. I recommend that you RMA the unit so it can be tested to make sure the fan control is operating correctly. Thank you.

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

  • Andrew K.
  • 7/29/2014 5:37:40 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsAwesome

This review is from: SeaSonic M12II 750 SS-750AM2 750W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Full-modular Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: -lasted almost a year so far (early september 2013)
-Doesn't make too much noise
-hasn't exploded and taken the rest of my PC with it

Cons: -doesn't cook bacon
-not all of the cords are modular - my only real gripe but i knew that before i bought it.

Other Thoughts: Wait for a great deal. i got this new for $60 here on newegg after a $20 rebate.

Did you find this review helpful? Yes No

  • tommy l.
  • 6/26/2014 11:18:28 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGood deal, Good product

This review is from: SeaSonic M12II 750 SS-750AM2 750W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Full-modular Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Stable power, low cost, easy to manage cable.

Cons: In time I write this I got no problem

Did you find this review helpful? Yes No

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