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SeaSonic S12G S12G-550 550W ATX12V / EPS12V 80 PLUS GOLD Certified Active PFC Power Supply

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Marketplace Seller
  • ATX12V / EPS12V
  • 80 PLUS GOLD Certified
  • 100 - 240 V 50/60 Hz
  • +3.3V@20A, +5V@20A, +12V@45A, -12V@0.3A, +5Vsb@2.5A

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews

SeaSonic S12G Power Supply

The S12G Series, available in 450, 550, 650 and 750 Watts, provides superior dynamic response, greater system stability, and maximum 12VDC rail output. The 80 PLUS Gold certified power supply provides high power efficiency of at least 87% at any load between 20% and 100%, saving you money on your electrical bill, reducing heat in your hardware, and prolonging your computer's life. Intelligent thermal control ensures an optimal balance between silence and cooling.


Features

SeaSonic S12G
  • DC to DC Converter Design
  • Conductive Polymer Aluminum Solid Capacitors
  • Highly Reliable 221°F (105°C) Aluminum Electrolytic Capacitors
  • Smart and Silent Fan Control (S2FC)
  • Active Power Factor Correction (up to 99%)
  • Ample +12V Output
  • 120mm Ball Bearing Cooling Fan
  • Multi-GPU Technology Support
  • Ultra Ventilation (Honeycomb Structure)
  • Gold Plated High Current Terminals
  • Soft-Rubber Mounting Cushions
  • Universal AC Input (Full Range)
SeaSonic S12GSeaSonic S12G

Product Information

1. Dimensions (L x W x H): 5.5 x 6 x 3.3 inches (140 x 150 x 86mm)

2. AC Input & DC Output Voltages / Wire Configuration


Model: S12G-450

SeaSonic S12G


Model: S12G-550

SeaSonic S12G


Model: S12G-650

SeaSonic S12G


Model: S12G-750

SeaSonic S12G



Safety

SeaSonic S12G


Learn more about the SeaSonic USA S12G-550

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Standard Return Policy.
Anonymous
Ownership: 1 day to 1 week
Verified Owner
5/ 5
This is where Seasonic quality starts S12G 550w 80 plus GOLD 4/9/2017 8:00:00 AM

Pros: Quality, cool, quiet, solid foundation for a gaming pc.

Cons: Not modular

Overall Review: I have been building computers for 20 years now. Add a cheap power supply and your just asking for problems. Add a mid grade to highend Seasonic and you will be 100% happy you did. Reliable cool power is an amazing thing to experience.

0 out of 1 people found this review helpful. Did you?
Anonymous
Ownership: 1 week to 1 month
Verified Owner
2/ 5
Good for a few minutes 4/1/2017 12:12:56 PM

Pros: Easy install, and more than enough connectors for my modest build. has 3 velcro ties and zip ties for cable management. This model has good ratings.

Cons: Lasted less than 10 minutes. Unit had a rebate, but I had to wait for additional parts so I mailed the rebate in before ps was tested. Therefore even though this power supply only lasted 10 minutes I cannot return to newegg, and going thru Seasonic may not include free return shipping. I will continue to shop for the most bank for my dollar, but I will be avoiding rebates as the requirements can conflict with my schedule.

Overall Review: I searched reviews trying to find a reliable power supply, but I understand a faulty product can make it to a customer. It may be a rarity, but failure or doa seems to happen quite often, at least in the customer reviews I read here on newegg. Also I intend to use modular or semi modular with my next build.

1 out of 5 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Nice upgrade for my Dell XPS 3/20/2017 4:58:58 PM

Pros: - great fit & finish
- quiet, practically silent
- plenty of connecting cables with enough length for my case
- cool, all-black cabling
- great budget-minded PSU from a top maker
- 5yr warranty

Cons: - not modular, but knew that when purchasing

Overall Review: Was looking for a reliable PSU for a budget-minded upgrade to pair with a new Sapphire RX480 card. This fit the bill perfectly - top-notch manufacturer's mid-range product, but much better than the cheap Dell PSU in my 3-yr old XPS 8700. Plus it has the same exact dimensions, so no need to try to squeeze it into the tower. It's NOT a modular PSU, but just tucked the extra cabling into an empty drive bay where it won't inhibit airflow.

Did you find this review helpful?
Anonymous
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Great PSU, very stable 2/24/2017 9:59:47 PM

Pros: Very stable hosting my Git repos with a 6700K at 4.5GHz.
Runs cool and silent with water cooling (details below).

Cons: None really.

Overall Review: I probably have 10 Seasonic high-end PSUs across various machines at this point.
In nearly a decade of heavy use I have had *zero* failures.
Cooling -- Corsair Hydro Series H80i V2 Water / 120mm
Case -- Cooler Master Elite 130 - Mini-ITX

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Great Product! 12/31/2016 8:02:19 PM

Pros: Works great, love the modular wiring

Cons: none that I have found

0 out of 3 people found this review helpful. Did you?
Ownership: 1 day to 1 week
Verified Owner
1/ 5
Apparent Failure 10/8/2016 9:07:57 PM

Pros: Still looking...

Cons: Approx 3 hours after install it went "pop" and died.

Overall Review: exploring options

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

Thank you for your comment and sorry about the issue you have encountered. We always do our best to avoid such situation with a new product. May I suggest you to check our troubleshooting page (www.seasonic.com/troubleshooting) and see if our Jump Start Guide can't help you to make sure that PSU is defective. You may need to unplug all cables first and wait a bit for PSU to discharge before using our Jump Start Guide. You can also contact us anytime at newegg@seasonic.com for any help or question.

Thank you.

Best Regards,
Seasonic Team.
Anonymous
3/ 5
It was decent for half a year, then... 10/2/2016 2:45:39 PM

Pros: - Supplies enough consistent power for my gaming setup at load
- Relatively quiet when it was working fine

Cons: - Short length of cables makes cable management difficult
- Cable connector quality seems to be lower than average (part of one just fell off)
- After half a year the fan started rattling and it's been making my system loud since

Overall Review: - It's difficult to recommend this product to someone if the manufacturer RMA process consists of the consumer sending the PS back, waiting 2-3 weeks, then receiving a new one in the mail
- Seasonic does not do Advance RMA, and has stated that they do not intend on providing it

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

Thank you for your comment and sorry to hear about this issue. Unfortunately, we do not provide yet advance RMA and we are really sorry for this. We are also sure that the RMA process won't take 2 to 3 weeks. In USA, it's a matter of only few days and we will be glad to take care very wickly of your exchange.

Thank you.

Best Regards,
Seasonic Team.
Ownership: 1 day to 1 week
Verified Owner
5/ 5
Great PSU 7/26/2016 8:16:52 PM

Pros: It puts out juice.

Cons: Some cables weren't long enough for me, so I have to order adapters.

Overall Review: It's a fantastic stable piece of hardware and you really can't go wrong with SeaSonic ever honestly.

Did you find this review helpful?
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