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Item#: N82E16817151074

SeaSonic S12II 430B 430W ATX12V V2.3/EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

  • ATX12V V2.3/EPS12V
  • 80 PLUS BRONZE Certified
  • 100 - 240 V
  • +3.3V@20A, +5V@20A, +12V1@17A, +12V2@17A, -12V@0.8A, +5VSB@2.5A
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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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Learn more about the SeaSonic USA S12II 430B

Quick Info

Warranty

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


Customer Reviews of the SeaSonic USA S12II 430B

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Showing 59 of 59 reviews - Clear Filters

  • Peter C.
  • 2/7/2015 11:03:06 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsExtremely quiet

This review is from: SeaSonic S12II 430B 430W ATX12V V2.3/EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Like all Seasonics I've ever owned, it is wonderfully quiet.

The SATA power connectors are in 2 strings of 4 connectors each. Perfect for my 4-drive main bay, and the other string for my 5th drive mounted next to my optical drive. (my optical drive is so old that it's MOLEX/IDE, not sata power, but w/e).

Cons: Higher capacity than I needed. A 300W would have been enough, but I wanted one with lots of SATA connectors. Seasonic's 300 and 350 units that newegg carries only have what looks like 4 SATA power connectors, all on the same chain.

(I have a low-power GPU, and a CPU that isn't too thirsty either, but I'm turning my machine into an IO monster with 5 hard drives for now.)

This PS isn't explicity certified to work with Haswell's deepest power-save idle state, but from what I read, you should be fine to enable that in the BIOS anyway due to other loads on the 12V rail.

Other Thoughts: Not modular, so the cables take up more space. Dunno if modular was an option in this capacity range, but it wasn't something I wanted to pay for anyway. Not listing this under cons, because I wouldn't have paid more for modular.

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  • Brent H.
  • 1/11/2015 6:23:51 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAwesome PSU!!

This review is from: SeaSonic S12II 430B 430W ATX12V V2.3/EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Very quiet PSU with good stable voltages. Powers everything nicely.

Cons: None

Other Thoughts: This is my first Seasonic PSU and Seasonic is supposedly a reputable so I thought I would try them out and see how well they are.

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  • Brent H.
  • 1/10/2015 12:46:22 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGreat PSU!

This review is from: SeaSonic S12II 430B 430W ATX12V V2.3/EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Very quiet PSU with stable voltages. Powers everything nicely without any issues.

Cons: None so far

Did you find this review helpful? Yes No

  • Michael C.
  • 11/3/2014 6:00:30 PM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs

This review is from: SeaSonic S12II 430B 430W ATX12V V2.3/EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: I've had this PSU installed in my desktop PC which doubles as a home file server for just over a year now. Computer is powered on 24/7 and I have had zero issues. This power supply had all of the connections that I needed and it just looks and feels like it is high quality.

Cons: Wish it is was modular so I could ditch a couple of the unused molex cables but I knew that going into it.

Other Thoughts: Love this PSU and will probably lean towards Seasonic PSU's for future builds as well.

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  • Jennifer A.
  • 8/26/2014 7:15:44 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggs2 failures inside of 2 weeks

This review is from: SeaSonic S12II 430B 430W ATX12V V2.3/EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Sturdy. Looks nice.

Cons: Had 2 of them fail inside of 2 days -- the second one didn't last 2 hours. Brand new PSUs powering brand new hardware. And it was Ivy-bridge, not Haswell.

Other Thoughts: Seasonic is a renowned brand in the PSU industry that are recognized as being head-and-shoulders above their similarly priced competitors. I've gone through 12-15 SS-300/350/400ET for all of the new systems and PSU replacements here at my office. Not a single failure -- some are still going strong after years. Really not sure why these 2 particular units failed, they were both S12II 430Bs b/c Newegg didn't have the SS-300ETs in stock at the time.

They were powering a fairly typical run-of-the-mill business system(s) (19 systems like this total):
ASUS P8H77-M/CSM or P8Q77-M/CSM
Intel Core-i5 3570K
8GB (2x4) Corsair Dominator Platinum 1600 1.5V
Samsung 840PRO 128GB
Western DIgital Black 500GB
Plextor PX-891SAW or PX-L890SA
Fractal Design Core 1000

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  • Anonymous
  • 6/27/2014 12:28:14 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week

4 out of 5 eggs

This review is from: SeaSonic S12II 430B 430W ATX12V V2.3/EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: -decent sleeving
-great performance
-most power cables are nice and long

Cons: -short 8-pin connector (and 4 pin if you use that instead)
-non-modular (you should know this going into the purchase)

Other Thoughts: Great power supply to work with. Sleeving wasn't extremely stiff so it was easy to get cables to bend to your will. The 8-pin and 4-pin CPU cables are fairly short, unfortunately. I was doing a build in my friend's Phantom 410 and it can barely reach the 8-pin on the AsRock Z97 Pro4 (8-pin on this is right above the top left LGA1150 heatsink mounting hole). Also doesn't come with zip ties but that's not really something to complain about.

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  • Caleb V.
  • 9/17/2013 5:01:17 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsNot what I was hoping for.

This review is from: SeaSonic S12II 430B 430W ATX12V V2.3/EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Looked nice, had good reviews.

Cons: Failed after two months

Manufacturer Response:

Hi, very sorry for the failed unit, have you contacted Seasonic USA for RMA service? Is everything now ok? Please send mail to newegg@seasonicus.com thank you.

2 out of 5 people found this review helpful. Did you? Yes No

  • JACOB D.
  • 8/6/2013 12:25:22 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsBest PSU Ever!

This review is from: SeaSonic S12II 430B 430W ATX12V V2.3/EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Very low "Ripple" rate, excellent A\C - D\C conversion.

Extremely tight regulation on the 12V - rails

Cons: Fan is not the best in the market, like Sanyko Denki

The fan Makes a "Tapping" noise much like a person's finger-nail tapping a wooden desk

I would attribute this to the possibility of a poor and inadequate lubrication of the ball bearings with-in the fan.

This only occurred after 48 hours of constant use of the PC.

Specifications:

i5 3470-S

Saber-tooth Z77

Corsair Venegance 1600MHZ DDR-3 memory/ram

Asus Nvidia 520 GT "Silent" GPU (uses passive heat-sink)

Other Thoughts: An over all decently performing PSU, compared to the competition!

Perhaps even more so, than the supposed "OEM" market that *MOST* OEM'ed branded companies use sea-sonic components with i.e. (corsair, silver-stone, etc)

Think of it like having an Jaguar,Porsche or any other "hot-rod super-car" engine, licensed to be made in other cars, only with those specific vendors making their own tweaks and modifications done by slightly less brilliant engineers .

meaning that it will work, and *MOST* End-users won't see any difference , except for the most seasoned Enthusiast who brings out their equipment , not just volt-o-meters/kill-a-watt's but sine wave frequency monitors/other snazzy equipement as well

it's basically like the difference between using a "stock" cpu cooler and using a water-block.

Get's the job done, but has no fancy bells or whistles and also, *Theoretically* your computer may last a bit longer if both a "sea-sonic" PSU and a water-block was used in your system, specifically for the reasons of cleaner electric current/conversion (PSU) and cooler Temperatures (Water-block)

0 out of 2 people found this review helpful. Did you? Yes No

  • John D.
  • 7/27/2013 9:42:15 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Quality. Whisper Quiet

This review is from: SeaSonic S12II 430B 430W ATX12V V2.3/EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Heavy, Long cables, Whisper Quiet, has all the connections, 120mm fan. Excellent voltage and amperage, clean power.

Cons: None

Other Thoughts: Great power supply for non gaming rig. I suppose it could handle an entry level to mid level card. I use this in all my business pc's because of the stability, reliability, and silence. The ladies really appreciate no annoying humming or buzzing sounds. They think I am a magician. I use them in the real dirty environments as well and they just keep on going.

2 out of 2 people found this review helpful. Did you? Yes No

  • Russ N.
  • 5/5/2013 4:26:14 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

This review is from: SeaSonic S12II 430B 430W ATX12V V2.3/EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Powered my Zambezi build without issue

Cons: None

Other Thoughts: Used this PSU in a build for a recording studio. Tested out fine and works great. Fans are quiet.

Did you find this review helpful? Yes No

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  • 2-4 $55.99 ea.
  • 5-9 $54.99 ea.
  • 10+ $52.99 ea.

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