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SeaSonic USA > 
Item#: N82E16817151032

SeaSonic S12 II SS-380GB 380W ATX12V V2.3 80 PLUS Certified Active PFC Power Supply

  • ATX12V V2.3
  • 80 PLUS Certified
  • 100 - 240 V 47 - 63 Hz
  • +3.3V@20A,+5V@20A,+12V1@17A,+12V2@17A, -12V@0.8A,+5VSB@2.5A
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Learn more about the SeaSonic USA SS-380GB

Model

Brand
SeaSonic
Model
SS-380GB
Series
S12 II

Spec

Type
ATX12V V2.3
Maximum Power
380W
Fans
12cm Double Ball Bearing Cooling Fan
PFC
Active
Main Connector
20+4Pin
+12V Rails
2
PCI-Express Connector
1 x 6-Pin
SLI
No
CrossFire
No
Modular
No
Efficiency
up to 85%
Energy-Efficient
80 PLUS Certified
Input Voltage
100 - 240 V
Input Frequency Range
47 - 63 Hz
Output
+3.3V@20A,+5V@20A,+12V1@17A,+12V2@17A,
-12V@0.8A,+5VSB@2.5A
MTBF
100,000 hours at 25°C under full load
Approvals
UL, CE, CB, TUV, FCC

Features

Connectors
1 x Main Connector (20+4Pin)
1 x 12V (P4)
6 x peripheral
4 x SATA
2 x Floppy
1 x PCI-E
Features
Conductive Solid Capacitor on the critical +12V rails
Multiple +12V Outputs
All in One DC Cabling Design
PCI-E video card support
Active PFC [99% PF Value]
Smart & Silent Fan Control (S2FC)
Ultra Ventilation [Honey Comb Structure]
Easy Swap Connector
12cm Ball Bearing Cooling Fan
Soft-Mounting Rubber Cushions
Universal AC Input [Full Range]

Manufacturer Warranty

Parts
5 years limited
Labor
5 years limited

Quick Info

Warranty

  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years


Customer Reviews of the SeaSonic USA SS-380GB

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  • Christopher B.
  • 1/27/2011 6:45:43 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsstill going after 3+ years!

Pros: This is a follow up review to my original one (8/2007). I've been beating on this little PSU 24/7, and it is still holding up. My folding computer has burned through one motherboard, a fan, and the CPU cooler, but it is still chugging away thanks to this Seasonic. And it's as efficient as ever!

Cons: Well, they don't make it any more...

Other Thoughts: Awesome PSU, sticking with Seasonic

Did you find this review helpful? Yes No

  • Kurt L.
  • 3/24/2009 5:47:26 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsgreat htpc power supply

Pros: Extremely quiet, i was debating between this and a fanless power supply and am glad i chose this.

Currently powers everything just fine in my htpc, has the right amount of connectors, not too many, not too few.

Cons: none

Other Thoughts: none

Did you find this review helpful? Yes No

  • Steven P.
  • 1/26/2009 11:49:00 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

5 out of 5 eggsQuiet, efficient, reliable

Pros: Quiet, if not completely silent. Very efficient--low heat output from case even under load. Lots of connectors. Slick sleeved cabling. Great build quality--my kids might inherit the thing.

Cons: Had to use the included adapter cable for the floppy drive (yeah, I still have one), consuming one molex connector.

Other Thoughts: This is my second Seasonic P/S. I have a 330W S12 (a now discontinued model) which has been running almost continuously for nearly 3 years and shows no signs of failure. My SS-380 has been in service for about 6 months, so I expect that it will be providing good service for a long time to come.

I only buy power supplies now with the big 120mm fans mounted on the underside of the unit. The 80mm fans mounted on the sides of many cheap power supplies have to turn more than TWICE AS FAST (given the same depth and blade pitch) to move the same volume of air. Faster rotation means more noise and in all likelihood, shorter bearing life, leading to fan failure and P/S failure soon after.

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

  • King M.
  • 1/10/2009 1:06:48 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsQuiet Power Supply

Pros: - Very quiet
- Nicely wrapped cables
- Reliable

Cons: - None

Other Thoughts: Works great in an HTPC because it is so quiet and the cables are easy to work with in small spaces.

Did you find this review helpful? Yes No

  • James P.
  • 12/17/2008 6:25:51 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsNice P/S

Pros: Quiet. Cables are plenty long. Runs my HTPC with no problems (Athlon 64 dual core 65W).

Cons: None so far.

Other Thoughts: It would be great if the cables were removable, but at this price, you can't expect it. I'll probably use one of these again for my next HTPC.

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

  • James P.
  • 12/17/2008 6:20:02 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGreat Value

Pros: Nice looking case. Pleasantly surprised to find that the entire front is metal, including the flip-down panel. Plenty of drive bays. Accommodates full height cards.

Cons: As mentioned by others, but back panel is _very_ flimsy. Other than being careful when putting in cards, it's probably not an issue, but it's really easy to bend out of shape. Fortunately it's just as easy to bend back into shape.

Other Thoughts: Even with the back panel, this case is very nice. I'll probably order a second one of these days.

0 out of 8 people found this review helpful. Did you? Yes No

  • Joseph C.
  • 12/1/2008 8:11:43 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsQuiet and reliable

Pros: I installed six of these during the past year. No problems whatsoever. I even put one in my main personal computer.

Cons: None.

Other Thoughts: CPU and hard drive specs sell new computers. Power supplies are usually mentioned in a computer ads only as power output ratings. Yet as I have learned over many years from a series of fried motherboards and short-lived hard drives, the quality of the PSU is a critical factor in the longevity and reliability of a computer.

If you want to build a better computer than the typical Dell or HP, start with a better power supply. You will not go wrong with Seasonic.

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

  • Duane K.
  • 10/20/2008 11:39:05 AM
  • Tech Level: Average
  • Ownership: more than 1 year

5 out of 5 eggs3 years old and running strong

Pros: Three years old or more, is installed in it's third computer. Most recently installed into an HTPC build. I originally ordered 550w mushkin supply for build. But used this supply instead because it is absolutely silent. Am so impressed, am writing this review after playing with the three year old seasonic. Definately a silent power supply. Did I mention it's silent?

Cons: Wiring not modular. Used cable harnesses from the automotive store to tidy up wires in build...turned out great.

Other Thoughts: Currently powering this system:2.5g dual core (85w) 2 gigs of ram, 8800gt card, sound card, tv tuner card, 2 case fans, aftermarket cpu and gpu fans, 750g hard drive, dvd rom, dvd r/w; seems like a big load. Used fan controllers to quiet all the fans in system (big heatsinks and slow turning fans) plus this supply runs absolutely silent (can't tell that it is on)...overall, the computer is silent...I mean silent..you have to put your ear to it to barely hear anything at all. I love this little power supply!

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

  • Roger W.
  • 9/4/2008 6:36:07 PM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsAn Efficient, Quiet, Reliable Power Supply

Pros: This is an excellent power supply. I bought a Seasonic S12 SS-380GB two years ago for a micro-atx media PC project I built for a close friend. What I like about this power supply is the excellent quality, quiet operation, conversion efficiency and stability of output voltages. This power supply has worked well in my friend's PC for two years. I cannot hear the cooling fan of this power supply during operation The fan on the 7600GT graphics is louder. This power supply is certainly worth the money and I would not hesitate to buy another.

Cons: None.

Other Thoughts: This power supply is perfect for a micro-atx media system with a mainstream graphics card (such as a 7600GT/8600GT). It has a 24-pin Main, 4-pin CPU, a 6-pin PCI-E, four SATA, two floppy and and six Molex connectors approprately sized for a micro-atx case. The easy swap Molex connectors are very convienent -- much easier to use than the standard Molex in tight spaces. These cables were easily routed and neatly tucked away within a SILVERSTONE SST-TJ08-B micro-atx case.

I typically choose a power supply with a rating double the needed power because best efficiency occurs at 50% load. Power supplies operate quieter and cooler at 50%.

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

  • Cynthia Q.
  • 7/30/2008 9:51:59 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Stock fan rather loud to my SPCR ears. I would get a Slipstream for it if you are a fellow quiet computing nut. I'm running this PSU as is for a server, but I really enjoy my other Seasonic (500W model) in my P182 with a 800rpm Slipstream @ 6v (superly awesomely quiet). A 500rpm Slipstream would be a good choice for those of you who would like to make the fan swap, but don't want to mess with undervolting or splicing the new fan into the PSU fan controller.

Cons: A bit expensive for a 380W compared to a (Seasonic manufactured?) Antec EarthWatts 380W or even other Seasonic-branded Seasonic manf. PSUs...but you get a cool paint job with this one. ;)

Other Thoughts: SPCR = silentpcreview (google for it if interested)

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

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Item#: N82E16817151032
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