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SeaSonic SS-350TGM Retail 350W TFX12V (v2.31) 80 PLUS GOLD Certified Full Modular Active PFC Power Supply

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  • TFX12V (v2.31)
  • Full Modular
  • 80 PLUS GOLD Certified
  • +3.3V@12A, +5V@16A, +12V1@18A, +12V2@18A, -12V@0.3A, +5VSB@2A

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

A blend of performance and quality, the Sonic SS-350TGM TFX power supply is a great choice for ultra compact PCs or other small form factor systems. High in efficiency and low in ripple, this unit is 80 PLUS Gold certified for better use of every watt of input AC power. Robust power output means your rig can run stably and reliably, while superb protection circuits help avoid device damage. One quiet fan provides great air flow so your PSU stays cool, even at demanding load levels.

  • newegg 80 PLUS Gold-certified efficiency The 80 PLUS GOLD certified power supply provides high power efficiency of at least 87% at any load between 20% and 100%, saving your money on your electric bill, reducing heat in your computer's system, and prolonging its life.
  • newegg Robust Power With its DC-to-DC converter design, this unit delivers a robust 350W of maximum power for your rig. Dual +12V rails with 348W maximum combined output provide sufficient juice for your multi-core CPU and power-hungry graphics card. 100% hi-pot test, 100% burn-in test, and high temperature cycled on/off guarantee reliability and stability.
  • newegg Premium Protection Short circuit protection on all outputs, over voltage protection, and over power protection safeguard your valuable components from power abnormalities.
  • newegg Silent Cooling Fan The super low noise fan produces a massive air flow that keeps your PSU running cool and always at peak performance.

Learn more about the SeaSonic USA SS-350TGM Retail

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 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.
Ownership: more than 1 year
Verified Owner
1/ 5
Maybe if you need something for a short time, this would be great!

Pros: Quiet and small. Works like a champ until it doesn't.

Cons: Lasted less than 2 years and then it stopped working. I opened the cover to see if there was obvious damage, which there wasn't, but I guess this voided my warranty.

Overall Review: Ha! I WAS given a choice and DID buy this again -- this is my second one that died -- the first one lasted 3 years 2 months, this one lasted 22 months. I think I'll try a different power supply (and so should you!)

1 out of 1 people found this review helpful. Did you?
Ownership: 1 month to 1 year
Verified Owner
1/ 5
not so good

Pros: price, tech support

Cons: blew out in less than 1 month

Overall Review: replacement seems to be fine, so far!!

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

Thank you for your comment and sorry for this issue. We always try our best to avoid such situation with PSU failing qo quickly. Unfortunately, it may happen and we will always stand behind our products in such case. We do hope your replacement went smoothly and that you are now enjoying your power supply. If you have any question or comment, you can always contact us at: newegg@seasonic.com

Thank you very much for your comment and trust in our products.
Best Regards,
Seasonic Team
Ownership: 1 week to 1 month
Verified Owner
4/ 5
Works as its supposed to, slightly false advertising

Pros: -True TFX PSU
-Advertised wattage is what you are truly getting
-Seasonic quality (which is very good, Corsair uses Seasonic PSUs for some of their lineup)
-Very quiet
-Great quality for effeciency and tightness for such a small PSU

Cons: -Not a true full modular PSU, I feel as if it is lying because the cables provided require all of it to be plugged in, which in the end is just causing you to take up more space instead of less, which is the whole point of getting a fully modular case. I used this with a MicroATX Slim case and the cables pinched down on the optical drive slot when it was secured back into place. Was concerning, but it did work. I found another SeaSonic PSU that was not modular and will be getting that next time.

Overall Review: -Is an excellent PSU, but in the particular case I used, the "modular" design was actually detrimental.

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
3/ 5
Great...for a year

Pros: Great power supply

Cons: short life...died after 11 1/2 months

1 out of 1 people found this review helpful. Did you?
Manufacturer Response:
Hi Thomas,
Thank you and sorry for the inconvenience of the failed power supply. Please visit www.seasonicusa.com for RMA service and if you have any questions, please contact: newegg@seasonicus.com Thank you.
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Excellent for HTPC or slim case

Pros: Fits perfectly into slimline cases and provides solid, reliable juice.
It's 80 Plus Gold which is awesome.
It's Seasonic, a brand that makes outstanding power supplies.
It's technically fully modular which is cool, but you have to use all the cables anyways. But still, I like to see that kind of dedication to awesomeness even in a small, non-enthusiast level product.
It was exactly what I needed at a good price.

Cons: None at all.

Overall Review: I basically built an HTPC for the living room from spare parts I had leftover from other builds and discarded stuff from work. I wanted to put the strongest possible graphics card I could that would fit in a half height case so I could do some light gaming on it. I ended up buying a used GT 640, the ddr5 version. The nameless power supply from Nexlink didn't have enough juice. So this power supply had enough power at an awesome efficiency level to do the job. Highly recommended if you are doing something similar.

1 out of 1 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
1/ 5
Unstable Power

Pros: Should work great on paper

Cons: Asus motherboard stated the power was too unstable to run. Had a 250W power supply that came with the case that worked fine; so took it out and threw it in a box. Live overseas so returning it wasn't an option.

Did you find this review helpful?
Manufacturer Response:
Hi Karl, please note, very often the read out from the MB is not accurate and often instability is caused by the VRM. If you have any questions or concerns, please contact us at: newegg@seasonicus.com Thank you.
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Great Choice for Small Form Factor

Pros: Quiet, powerful for its size

Cons: None

Overall Review: Probably the best choice for a TFX form factor power supply. If you're needing to buff up a small form factor computer, this is the one to get.

Did you find this review helpful?
Ownership: less than 1 day
Verified Owner
1/ 5
Full Modular is Lies

Pros: Newegg shipping, as always, was excellent. The product, however, was not only useless but a complete shill.

Cons: This product was Dead On Arrival. Of all PC components, a power supply is probably the one that should have the most QA performed on it. Furthermore, I bought this expensive $80 power supply because I expected "Full Modular" to imply that I could connect to the power supply only the power cables I would need for my system. As it turns out, "Full Modular" in this product's description means "not modular at all." The only difference between this and a standard TFX12V power supply is that you have to plug the bundle of cables into the box before installing it.

2 out of 4 people found this review helpful. Did you?
Manufacturer Response:
Hi Michael, I am sorry about your experience with our power supply. Please contact our USA office and we will sort out your issue as soon as possble.

As for definition of Full Modular, from our perspective when the cables are modular, then it can be disconnected completely from the power supply unit and does not define if the cables are in a bundle or not. Due to the limited back panel size, the number of connectors are limited and therefore, this limits the cable set options.

If you have questions or concerns about this issue, please contact me at: newegg@seasonicus.com Thank You.
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