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Item#: N82E16817151070

SeaSonic SS-300TFX 300W TFX12V 80 PLUS Certified Active PFC Power Supply - OEM

  • TFX12V
  • 80 PLUS Certified
  • 100 - 240 V 50/60 Hz
  • +3.3V@20A,+5V@20A,+12V1@18A,+12V2@18A,-12V@0.8A,+5VSB@2.0A

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  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the SeaSonic USA SS-300TFX

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details

Customer Reviews of the SeaSonic USA SS-300TFX

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  • Rebecca W.
  • 9/22/2009 6:32:43 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsDell Studio Slim 710S upgrade necessity

Pros: 300W in a weird and small form factor.
more molex connectors than I knew what to do with. I had to stuff them in the only available drive bay.
runs quiet and keeps cool enough.

Cons: No PCIE power connector is kind of a downside; and it almost lost an egg for that; however, I didn't need it because the card I put in sucks power from the mobo. Also, remember, if you need to power a PCI express card, get an adapter from 2 molex to a PCIE and you should be fine. Below is one in case you need it.

Other Thoughts: This is for a friend's Dell Studio 710S. The stock PSU comes with 125W power supply! I've never seen one so low. He was getting a 1.0 Vista graphics index with his onboard graphics and therefore his computer rated the same 1.0. putting this as well as a 9400GT in the computer fixed all of his issues. Now his processor gets enough power to do what it wants to do and his experience index has shot up to 5.4. If you're looking to upgrade a slim case, power might be your issue and this will fix that, it almost tripled my friend's available power.

Newegg only sells 3 TFX PSUs and this just stuck out to me as the best. I can't guarintee that it'll fit in your case since its so weird to start out with (some people have had issues with the screw holes, but I didn't have any). I took a chance on it and it worked out for me, so if you have the same computer as my friend, then get this one. If not, check your specs and take a chance as well.

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

  • Davis L.
  • 8/8/2009 3:44:29 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsgreat psu but a little too big

Pros: i had to get this thing to power my galaxy 9600gt lp and it works great so far. I used to have a no-name psu and i wasn't confident it was puttin out what it said it was. So i got this because i know seasonic makes great products.

Cons: I was afraid that it wouldn't fit by looking at one of the other reviews and a couple of pictures and i was right. It is just a tad bit too wide, but i got it to fit anyway i just cant screw it in. But if you are really cramped in your case make sure you know that you have enough room for this.

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  • Eric S.
  • 8/1/2009 6:20:46 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsshood be better

Pros: This thing is beast in the guts department. 80 plus certified , quiet and powerful,

Cons: large in size...had to remove the top fan from my slim rosewill case I bought from here. The bolt holes seem to be fits right in but, mounting is 2 screws with washers holding it in.

Other Thoughts: Im guessing seasonic messed up somehow with the location of the mounting wont be a problem if your power supply is spaced from the top most or bottom most position inside of the case. I really want to give it a better rating but for the should be more will be nice when flex cases become more popular, were still paving the road.

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  • William M.
  • 7/11/2009 1:21:00 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsMost powerful TFX PSU so far...

Pros: It meets the PSU system requirement to run my Asus GeForce EN9400 GT video card. Price is about average for TFX form PSU.

Cons: Do not like "bubble wrap only" as method of protecting item from shipping , but the PSU is working great so far!

Other Thoughts: PSU came in with a bubble wrap to protect it from damage. BUT i dont like bubble wrap eventhough its OEM. anyways, i guess i'll do just fine since it is still working great from first day i installed into my PC.

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

  • Michael B.
  • 5/1/2009 9:39:13 PM
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsToo wide

Pros: None.

Cons: Does not fit where my other "standard" TFX power supply did. Looks like I'm going to exchange it. This one is about 1/2 inch too wide. Other dimensions are on spec.

2 out of 4 people found this review helpful. Did you? Yes No

  • Adam D.
  • 3/22/2009 8:45:54 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsIt works, it's quiet

Pros: Quiet enough for HTPC, well, works, enough connectors.

Cons: A bit pricey for tiny power supply:(

Other Thoughts: Allowed me to update my HTPC (I like my current Silverstone case) to newer hardware so I can play HD video. It's quiet enough, but could be really q bit better, still no major complaints here. I'm happy I found a supply in this format that supports newer hardware: 4-pin mobo plug, etc.

Did you find this review helpful? Yes No

5 out of 5 eggsBUY IT!!!

Pros: It's efficient, cool, and quiet. It's perfect for an Atom 330 computer.
It has all the necessare plugs... Molex, SATA, and even the 4 pin plug for the motherboard too.

If your running an Atom 330 and your case accepts a TFX power supply, this is the one to buy.

Cons: New Egg is out of stock... They need to get a few more in.

Other Thoughts: I used this power supply to replace the one included in my Winsis Wi-02 Black SGCC / ABS Mini-ITX Tower Computer Case and it was a perfect fit. The power supply stays quiet and very cool when running my Atom 330 computer. I've noticed that my atom actually runs better with the extra juice. I had a 80 watt power supply before and I would see artifacts on the display and seems to run slower. They disappeared with the new supply.

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

  • Daniel D.
  • 1/31/2009 9:09:55 AM
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsWe've got power!

Pros: Easy to install and did the trick!

Cons: No 6 pin PCI-e connector.

Other Thoughts: Bought this to power a 9600GT in my Dell Studio Slim. Installed and it worked like a champ

4 out of 4 people found this review helpful. Did you? Yes No

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Item#: N82E16817151070
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