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SeaSonic USA > 
Item#: N82E16817151115

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

  • 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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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


SS-350TGM Retail


TFX12V (v2.31)
Maximum Power
Main Connector
+12V Rails
Haswell Support
Full Modular
> 87%
80 PLUS GOLD Certified
Over Voltage Protection
+3.3V@12A, +5V@16A, +12V1@18A, +12V2@18A, -12V@0.3A, +5VSB@2A
>100,000 Hours
CUL, TUV, CB, CE, FCC, C-tick
6.9" x 3.3" x 2.5"
3 lbs.


Main Power (24/20P) x 1
ATX12V (4P) x 1
Peripherals: SATA, HDD, FDD
Support the latest Intel & AMD Socket

DC to DC converter design

High efficiency and reliability

Low ripple & noise

Super low noise fan control

Short circuit protection on all outputs

Over voltage protection

Over power protection

100% hi-pot test

100% burn in, high temperature cycled on/off

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the SeaSonic USA SS-350TGM Retail

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  • Stefan R.
  • 6/30/2014 9:49:00 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsThe power!

Pros: - 350 watts in a TFX form factor.
- Modular cables
- 80 plus gold efficient
- Seasonic PSU's are solid.

Cons: - Modular cables are sort of useless unless you want to sleeve them or something, because you need all of them to be plugged in anyway.

- It's a bit noisy.

Did you find this review helpful? Yes No

  • Phai T.
  • 12/14/2013 4:50:05 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsAwsome, thats all i can say

Pros: This powersupply works great, really quite. I barely hear any sound coming out of it. Easy to install, i recommand u this product.

Cons: This powersupply works great, really quite. I barely hear any sound coming out of it. Easy to install, i recommand u this product.

Did you find this review helpful? Yes No

  • robert f.
  • 10/30/2013 2:30:40 PM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsworked great for a year

Pros: perfect fit for my hp slim line, ran quite easy to install
worked great till it died only lasted a year i currently
have it as 3 eggs i will adjust that after i see how
smoothly everything goes when i try to return it

Cons: died after a year

Manufacturer Response:

Hi, Sorry for the inconvenience, I hope the RMA process went smoothly, if not, please drop me a mail at Thank you.

Did you find this review helpful? Yes No

  • Tim H.
  • 6/15/2013 9:36:41 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month

1 out of 5 eggsNoisy!

Pros: Variable fan actually works! Cables not an issue like all the other people on here.

Cons: Very noisy power supply, and not the fan...the power supply itself! I have owned hundreds of power supplies over the years and have never ever heard one emit the high pitch whine that this one does! Obviously I hope it is just a defective unit...

Other Thoughts: Using as a replacement for a Dell 620S since i needed more power connections to add pci-e usb 3.0 cards.

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

  • Jacob C.
  • 3/21/2013 11:50:52 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsCable mess

Pros: 80 plus Gold Certified, great efficiency. Quiet and powerful.

Cons: "Full Modular" I think not. From the pictures it looks like there are two cables included, one being a standard 24 pin cable. This is not the case, there are two plugs on the PSU, yes, but there is one single giant cable monster that plugs into both. The cables are so bulky I had to remove the case fan from my IN WIN BP655 case because the cables wouldn't fit, fortunately I have a 120mm fan on my CPU cooler and it manages by itself. Perhaps this PSU is "modular" because you could buy your own wires and plugs and make your own cables to fit it.

Think twice before buying if you have a cramped case.

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

  • Adam K.
  • 3/20/2013 5:26:16 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsDOA

Pros: Nicely packed

Cons: DOA... now to pay return shipping and wait for another... ugh

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

  • Alan D.
  • 3/5/2013 4:36:30 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBest TFX out there

Pros: Fit in a 8 year old A-Open Slim Line desktop case(old Pentium 3 system) had lying around. Runs as a Media PC now using Phenom II X4 965BE

Cons: None

Other Thoughts: This thing is uber quiet. I never hear the fan in it running. Very stable voltages across the board after 6 months of nearly constant use. My cpu fan makes more noise.

Did you find this review helpful? Yes No

  • Andrew O.
  • 1/15/2013 1:53:10 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsRuns a quad core Phenom II and HD-7750

Pros: From my research, this is the best PSU in the TFX form factor. It offers more current on the 12V rail than any 400W model I have found.

I would prefer the SS-350TGW, as the modular cables interfere with the 80mm fan loccation on my In-Win BL631 case. There is also no benefit to the Modular, as there are only two plugs and the wire harness is all tied into one assembly.

Cons: Modular sounds good, but offers no benefit. It results in added clearance requirements on the back of the PSU, which seems a poor choice on a PSU for SFF cases.

Did you find this review helpful? Yes No

  • Edward S.
  • 11/26/2012 4:29:57 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsThis is how they all should be made

Pros: Fit absolutely perfectly into my HP Pavilion Slimline s5380t PC. Fan aligned with case cover cutouts, rear plug cutouts, and internal case lock tab. Well done. Whisper quiet even on 3DMark11 load. I bought this TFX PSU to upgrade the video adapter, CPU, and HDD of this unit from stock and am very pleased with this product.

Cons: I would rather SeaSonic not include the three case screws and instead include a few nylon ties. It's a big wad of cables to get neatly tucked into a small case like the HP Slimline. And why would I need screws for a replacement PSU anyway?

Other Thoughts: 3 year warranty is icing on the cake.

Did you find this review helpful? Yes No

  • Frederick K.
  • 10/26/2012 11:24:23 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsInstalled in mini-ITX Case

Pros: This Seasonic SS-350TGM power supply fit in a Foxconn RM-224 mini-ITX case with only a minor modification to the case. To make the power supply fit perfectly, I had to grind away about 1/8" at the rear of the case.

That is, I had to enlarge a small area on the rear of the case so that the plastic surrounding the power plug would fit through to the back of the case. A small grinding wheel on a hand drill did the job in a couple of minites. One could also use a file for this job, if needed. Not all cases would need this modification.

Otherwise, the power supply fit perfectly. I removed the 150 watt power supply that came with the Foxconn case, and upgraded it with this Seasonic 350 watt unit.

I had no issues with the bundle of cables that comes with the Seasonic power supply. I simply hid the unused cables under the cage holding the CD-ROM drive. I don't see why anyone would blame Seasonic for ones own failure to not notice that this power supply has no detachable cables. This arrangement is in plain sight and Seasonic makes no claim to the contrary.

My computer runs Windows 8, with a 65W Intel i7-3770s 3.1GHz processor, and a PowerColor HD-7750 low profile video card. It also has the other typical items, such as a motherboard, CD-ROM drive, SSD hard drive, etc.

Cons: This power supply has no cons worthy of mentioning.

Other Thoughts: I like the 80 plus gold efficiency of this power supply. This means it produces power with less heat than lower efficiency rated power supplies.

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

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Item#: N82E16817151115
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