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Item#: 9SIA25V2SC3301

SeaSonic M12II 620 Bronze 620W ATX12V V2.3 / EPS 12V V2.91 SLI Ready 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@24A, +12V2@24A, -12V@0.8A, +5VSB@2.5A

BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the SeaSonic USA M12II 620 Bronze

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details

Customer Reviews of the SeaSonic USA M12II 620 Bronze

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Showing 297 of 297 reviews - Clear Filters

  • Debbie H.
  • 8/24/2015 11:33:13 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsCoil Whine

This review is from: SeaSonic M12II 620 Bronze 620W ATX12V V2.3 / EPS 12V V2.91 SLI Ready 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply

Pros: Powers my i3+7870 system without a hitch, would recommend without issues I had.

Cons: Came without main power cable for outlet, such an odd thing to not include. Seasonic however hooked one up for me though with some basic order info. Main issue is the coil whine. It makes this weird ticking noise that can get very annoying. It happens at random times and will leave and return without warning. Im annoyed but too lazy to RMA it.

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  • Kevin J.
  • 8/17/2015 10:34:19 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGood little PSU

This review is from: SeaSonic M12II 620 Bronze 620W ATX12V V2.3 / EPS 12V V2.91 SLI Ready 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply

Pros: Nicely packaged, Silent, fully modular. Works great no issues! Great price for full modular

Cons: The main MOBO connectors are nicely wrapped. But the "sleeving" that goes with all the additional power cables eg PCIE cables feel plasticy.

Other Thoughts: For the price a great unit.

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  • Carole O.
  • 8/10/2015 6:48:00 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsFailed after less than a year.

This review is from: SeaSonic M12II 620 Bronze 620W ATX12V V2.3 / EPS 12V V2.91 SLI Ready 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply

Pros: Was great while it lasted, easy install, reasonably long cables.

Cons: It failed after less than a year, making it the only one I have ever had die on me. I have worked on a lot of computers, and this is the only Seasonic I have ever owned or worked on, and it's also the only one to ever fail. Very disappointed.

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  • Teresa L.
  • 6/18/2015 7:05:20 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggs

This review is from: SeaSonic M12II 620 Bronze 620W ATX12V V2.3 / EPS 12V V2.91 SLI Ready 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply

Pros: A modular power supply that's sli and crossfire capable

Cons: None so far

Did you find this review helpful? Yes No

  • Ryan G.
  • 6/18/2015 5:51:33 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsA dream come true

This review is from: SeaSonic M12II 620 Bronze 620W ATX12V V2.3 / EPS 12V V2.91 SLI Ready 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply

Pros: I've cut costs on builds by skimping on power supplies that promise adequate output and then burn out everywhere from 2 days past your 30-day return at a-zon to 6 mos.... This baby is well built it's obvious, and after a year with 0% problems I'm very grateful. Full modular to boot the inside of your case will no longer look like nasty spaghetti, instead every cable, every wire will now have a direct purpose in your case.... F'in sweet right?

Cons: None to date.

Other Thoughts: I've been building computers for 20 years, and I'm glad to say I am very satisfied with this unit.

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

  • Ryan G.
  • 6/7/2015 2:15:57 PM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsPower supply

This review is from: SeaSonic M12II 620 Bronze 620W ATX12V V2.3 / EPS 12V V2.91 SLI Ready 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply

Pros: Works great, no problems after almost 2 years.

Cons: none

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  • Douglas H.
  • 5/22/2015 1:20:12 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsgood psu

This review is from: SeaSonic M12II 620 Bronze 620W ATX12V V2.3 / EPS 12V V2.91 SLI Ready 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply

Pros: these are the best psu's you can get

Cons: the only reason I purchased this unit was because at the time it had a good rebate and was on sale, so I thought I'll just get it as a back up.
That was Oct. 14 now late may 15 and no rebate! I guess I really did not need the back up deal after all!

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  • Kathrynn F.
  • 5/4/2015 10:38:32 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDo not buy from Seasonic

This review is from: SeaSonic M12II 620 Bronze 620W ATX12V V2.3 / EPS 12V V2.91 SLI Ready 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply

Pros: None.

Cons: I have been through three of these things since I bought my first one about a year ago. I contacted Newegg after the second one and they told me that there was nothing they could do for me, as Seasonic had already replaced the one that had my computer restarting every few hours. The hardware I have right now doesn't require any more watts than what this thing puts out, so I know that that wasn't the issue. Seasonic has sent me two refurbished replacements since after literally months of headaches and no computer use. I finally got tired of waiting to be able to use it and put another brand in, and now it works fine. Seasonic refused to refund me my money because it was outside of warranty; the only reason being that I had to wait so many months to get help from them that it conveniently fell out of warranty. Great job, Seasonic! I won't be buying anything from you guys for as long as I live. Newegg, you have been good to me in the past, so I will make an exception this time, even though I really expected better of you for how helpful you usually are in situations like these. However, eleven dollars short of 100 sure is a lot of money for someone who makes next to nothing to just be throwing it out the window, which is essentially what I am forced to do now that I am stuck with a refurbished power supply from Seasonic that no one wants. I have it listed on Craigslist, but will probably just end up throwing it away, as it is worth nothing to anyone.

Do not buy from Seasonic. You can't reach a person when you call their customer help line. You can't even reach an automatic service! It directs you straight to their voice mail, and don't be expecting a phone call back if you decide to bother leaving a message.

Other Thoughts: Seasonic sucks.

Manufacturer Response:

Hi Kathrynn F.,

I am sorry but to my understanding if you purchased this unit about 1 year ago, then it should be under warranty and I am certain Sea Sonic USA will not refuse to honor your warranty. If they have already replaced the unit 2x for you, then it is very possible this is a non-PSU related issue.

Please note, if you made the purchase from NewEgg, then it is not possible for Sea Sonic to refund the money to you because you did not purchase the item from us. You will need to contact your point of sales for any refund issues.

As for service, we kindly ask that our customers contact us in writing so the issues can be documented and traced for future reference.

If you have any concerns or any other issues, please contact us at newegg@seasonicus.com Thank you.

0 out of 3 people found this review helpful. Did you? Yes No

  • Charles P.
  • 4/26/2015 4:49:59 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGood Purchase

This review is from: SeaSonic M12II 620 Bronze 620W ATX12V V2.3 / EPS 12V V2.91 SLI Ready 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply

Pros: Great PSU. Fully Modular, Quiet, Really easy to instal

Cons: None

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

  • Aaron S.
  • 4/21/2015 3:00:01 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsNo Post & Shuts off

This review is from: SeaSonic M12II 620 Bronze 620W ATX12V V2.3 / EPS 12V V2.91 SLI Ready 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply

Pros: cheap (was on sale when i bought it), has good features, modular

Cons: worked great for a few weeks, then the pc shut off, would power on with fans spinning but no post, (no power to cpu?), the it would fully boot for a few minutes then shut off and be dead for a few days thought it was the mobo but no this psu did the same on another system tried different PSU hx750 and both systems ran without fail, so i got a dud power supply, $$ wasted

Other Thoughts: i will stick with high quality, not cheap, brands i know are reliable, ...... it took me far to long to figure out it was this power supply, cause me grief, cash flushed

Manufacturer Response:

Hi Aaron,
I am sorry to read of your case. Have you started a RMA with our USA office?
Normally speaking, if the system will power on and fans spin but no post, this can very well be a MB or software issue or even a poor DC power cable connection issue.
If you have any issues, please contact us at newegg@seasonicus.com Thank you.

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Item#: 9SIA25V2SC3301
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