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Seasonic S12III 450 SSR-450GB3 450W 80+ Bronze, ATX12V & EPS12V, Direct Output, Smart & Silent Fan Control, 5 yr Warranty Power Supply

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  • Intel ATX 12 V
  • Non-Modular
  • 80 PLUS BRONZE Certified
  • 100 - 240 V 50/60 Hz
  • +3.3V@18A, +5V@18A, +12V@35A, -12V@0.3A, +5VSB@2.5A

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
Seasonic USA THE HEART OF YOUR SYSTEM LOGO Next to the S12III Product Graphic, The Power Supply Angled to the Right, The 80 PLUS BRONZE Badge and Text That Reads: 650W / 550W / 500W / 450W

SeaSonic S12III SSR-450GB3 Power Supply

Built with premium components and advanced technology, the S12III series power supplies deliver robust, stable output for a mainstream system or gaming rig. It achieves 80 PLUS Bronze standard, resulting in less heat generation, less power waste and therefore reduced power cost on your energy bill. Comprehensive protection mechanism including OPP, OVP, UVP and SCP provides solid protection for system components. Its 120mm fan uses sleeve bearing and features Smart and Silent Fan Control (S2FC) for the perfect balance between operation noise and cooling performance, so you can game, work and surf with great peace of mind.

Available in 450W/500W/550W/650W to meet the requirement of various setups.

Graph Showing Power Supply Efficiency for 230V internal non-redundant, 115V internal non-redundant from 20 to 100%

High Efficiency, 80 PLUS Bronze Certified

Graph Comparing Fan Speed in Silent and Cooling Mode from 0 (Silent) to 100% (cooling), Percentage of System Load Measured at 25°C ambient temperature, smart and silent fan control - fan mode activation points are estimated

Smart and Silent Fan Control

S12III Graphic Icon and the Seasonic USA Power Supply Facing Forward, Angled Down Slightly

Improved Compatibility
with the Latest Intel
and AMD Platforms

Seasonic USA Power Supply Angled to the Right with Text That Reads: 5 Years Warranty - Our Commitment to Superior Quality and Badges for 5 Year Warranty and 80 PLUS BRONZE

Learn more about the SeaSonic USA SSR-450GB3

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.
Anonymous
Ownership: 1 day to 1 week
Verified Owner
5/ 5
10/16/2019 2:15:32 PM

Pros: It was here in a timely fashion. Nothing missing

Cons: It was raining today ☹️

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
4/ 5
Solid power supply 8/8/2019 11:29:42 AM

Pros: Good for regular system with 1 graphic card that requires extra power.
80+ Bronze so it's pretty efficient.

Cons: It does have slight noise when plug in power. Will be noisy if you don't do the math on power requirements for your system.
Better off buying semi modular often for same price after rebate or even less!
Got the rebate exactly after 3 months.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Good Budget PSU 7/30/2019 7:37:30 AM

Pros: 80 Plus bronze rating, wires have enough length to reach all components.

Cons: Only the CPU and Motherboard power connector wires are sleeved.

Overall Review: PSU has been powering a desktop with an i5, GTX 1060, 1 HDD, 1 SSD, and 3 case fans with absolutely no problems.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Works just fine 7/27/2019 6:26:52 AM

Pros: Works just fine. Big fan and quiet. Great power connections. What more can you ask?

Cons: None

Overall Review: Worked as described. No problems after a month.

Did you find this review helpful?
Anonymous
Ownership: 1 week to 1 month
Verified Owner
2/ 5
Coil Whine on the the replacement unit after ordering a new unit. Stay away 7/19/2019 4:23:31 PM

Pros: It would of been a great psu if it didn't have the noise.

Cons: Coil whine, buzzing noise from a new Power supply. Should be ashamed of your manufacturer process. I've order EVGA models never had an issue like that and I'm pretty sure you guys make their psu's too.

Overall Review: Seems like it'd have potential if it didn't have coil whine I bought one from the company that is named after the largest River in the world (I can't say the name newegg no let me) and I think it even had coil whine but it was pretty minuscule, or I'm just imagining things but the 2 psu's the 450 watt bronze s12III I got from newegg one brand new and the second one a replacement that was obviously brand new both made coil whine or some kind of static buzzing noise the first brand new one I ordered had a louder noise and the replacement has a quieter but still pretty annoying noise even when the system is completely shut off if the psu is receiving power plugged in it'll make a noise even if you unplug the whole system and just run power only to the psu it'll still make a noise other reviewers are commenting on this as well so I'd stay away until they sort something out and just order an EVGA or some other reputable brand or a higher end model from Seasonic.

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
2/ 5
Common High Pitched Whine 7/3/2019 1:05:20 AM

Pros: It looks nice and is nice and quiet when on

Cons: High pitched whine when off.

Overall Review: I really wanted to like this power supply. It provides the power my computer needs, its silent, and it looks really nice in my case. Unfortunately, I started noticing a high pitched whine whenever I turned it off. At first, I thought it was my speakers, but then noticed that it was coming from my computer, and it turns out, the power supply is the culprit. I've tried different cables, different outlets, disconnecting everything from the back of my computer, and nothing makes it go away. Ive tried 4 other power supplies with the same cables, and none of them suffer from this issue, not even the cheap Dynex I got like 5 years ago. The only way to make it go away is to disconnect the cable from the power supply. Now, I'm stuck with a noisy power supply, and if I want to RMA it, ill be stuck without a computer for who knows how long, AND i'd have to pay for shipping. At first, i thought maybe i got a bad one, but apparently, its a common problem. My suggestion, look elsewhere.

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

Thank you for your comment and sorry for this issue. Please if not yet done, kindly contact our support department and they will assist you to quickly get a PSU without such noise: newegg@seasonic.com

Once gain sorry for the inconvenience.
Best Regards,
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Just what I wanted!! 6/28/2019 12:25:35 AM

Pros: I'll buy again and highly recommended.

Overall Review: No issue so far and the price is right.

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
1/ 5
Does not work !!! 6/19/2019 2:49:36 PM

Pros: does not work.

Cons: does not work and cant return it.

Overall Review: It took almost a month for the other parts to get here from china. I just got around to using the power-supply and it doesn't work at all. Nothing , Dead. and cant return it so don't waste you money.

1 out of 7 people found this review helpful. Did you?
Manufacturer Response:
Hello Mark,

Thank you for your comment and sorry for this issue. If you are beyond 30 days after purchase, please do not hesitate to contact us to start your RMA process. Your PSU is covered by a 5 years warranty and we will gladly assist you for this: newegg@seasonic.com

Thank you and sorry for the inconvenience it may have caused.
Best Regards,
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