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SeaSonic USA > 
Item#: N82E16817151072

SeaSonic S12II S12II 380B 380W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

  • ATX12V v2.3
  • 80 PLUS BRONZE Certified
  • 100 - 240 V 50/60 Hz
  • +3.3V@20A, +5V@20A, +12V1@17A, +12V2@17A, -12V@0.8A, +5VSB@2.5A
IronEgg
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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Learn more about the SeaSonic USA S12II 380B

Model

Brand
SeaSonic
Model
S12II 380B
Series
S12II

Spec

Type
ATX12V v2.3
Maximum Power
380W
Fans
1 x 12cm Double Ball Bearing Fan
PFC
Active
Main Connector
20+4Pin
+12V Rails
2
PCI-Express Connector
1 x 6-Pin
SATA Power Connector
4
SLI
No
Haswell Support
No
CrossFire
No
Modular
No
Efficiency
up to 85%
Energy-Efficient
80 PLUS BRONZE Certified
Over Voltage Protection
Yes
Input Voltage
100 - 240 V
Input Frequency Range
50/60 Hz
Output
+3.3V@20A, +5V@20A, +12V1@17A, +12V2@17A, -12V@0.8A, +5VSB@2.5A
MTBF
>100,000 Hours
Dimensions
5.9" x 5.51" x 3.39"

Features

Connectors
1 x Main connector (20+4Pin)
1 x 4 Pin CPU
6 x Peripheral
4 x SATA
2 x Floppy
1 x PCI-E
Features
Multiple +12V Outputs
Enhanced +12V current capability broadens utilization possibilities.

Super High Efficiency [up to 85%]
Optimal solution for low energy consumption, noise & heat.

Active Power Factor Correction [99% PF]
Reduces line loss & power distortion.

Double Forward Converter Design
Advanced topology for the highest efficiency.

Conductive Polymer Aluminum Solid Capacitors
Advanced ultra-low resistance, high temperature capacitors on critical 12V rail.

12cm Double Ball Bearing Cooling Fan
Increases airflow & lifetime and reduces rotation speed ad noise.

Smart & Silent Fan Control
Smart thermal control to balance noise & cooling.

Soft-Mounting Rubber Cushions
Reduces fan rotation & vibration noise.

Ultra Ventilation [Honey Comb Structure]
Minimized airflow resistance for maximum cooling.

All in One DC Cabling Design(*applies to models 430W and above.)
Supports PC, IPC, workstation, server, & dual CPU systems.

Universal Video Card Support
Support new PCI-E video card technologies

Universal AC Input [Full Range]
Plug & run safely anywhere in the world.

Patented Easy Swap Connector
Unplug the connectors easily & quickly.

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 S12II 380B

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Showing 27 of 27 reviews - Clear Filters

  • Chad S.
  • 7/21/2014 3:00:55 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsDOA

This review is from: SeaSonic S12II S12II 380B 380W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Couldn't say...

Cons: DOA, would not even spin internal fan...

Manufacturer Response:

Hi Chad, Apologies for the inconvenience and I hope NewEgg can resolve your issue quickly. I also kindly ask that you check all connectors to be seated properly and that the MB is in proper operations. If you have any issues, please contact us at newegg@seasonicus.com Thank You.

Did you find this review helpful? Yes No

  • Dennis N.
  • 2/19/2014 5:07:13 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsSuperb Product

This review is from: SeaSonic S12II S12II 380B 380W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Absolutely silent running in my Pavilion! Cabling is a bit of a tight fit but manageable. Overall a very high quality product for a reasonable price. Kudos to Seasonic!

Cons: None!

Other Thoughts: Delivered to my door in 24 hrs! Wow! Way to go Newegg!

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

  • Donald Q.
  • 12/24/2013 8:33:07 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsPower Supply for five year old.

This review is from: SeaSonic S12II S12II 380B 380W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Big and black, how I like them. Very Easy to install. Works quiet well for the five year old computer I have, whose stock PSU died. It seems to do a really good job and is quiet. Well..compared to the old supply, anything is good.

I like the fact this unit has lots of connectors, though I will need a bigger case to utilize them all. But, one thing at a time.

Cons: Cons? KAAAAAAAAAHN(s)....

well, NewEgg took an incredibly ridiculous amount of time to pick and ship this order. They "claim" it was due to high volume on Cyber Monday. Ya THINK? Duh....HIRE MORE TEMP HELP....problem solved.
No issues with the PSU yet but it's only been installed a couple weeks.
Rated four stars simply because of NewEgg's laziness.
PS..I love you NewEgg, but you KNOW that CM is a big day..please plan ahead.

Other Thoughts: This is a good looking unit, worked out of the box and installed in my mid case easily, although the mass amount of cabling needs to be dealt with, but you have to expect that and, in a bigger case, having all the extra connections would be beneficial. Sure, it's not modular, but it wasn't modularly priced either. Good price, good unit, works well powering my system and low mid level card.
I recommend this to anyone needing a replacement for a mid power PSU. Simply put, it's beautiful.

Manufacturer Response:

Hi qcubed,
Sorry about your product delviery experience with NewEgg. But please note, this review is about the product and not about the service from NewEgg.
Thank you

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

  • Claude B.
  • 12/8/2013 5:21:27 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsCould not use on a modern Intel Mobo

This review is from: SeaSonic S12II S12II 380B 380W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Good price, seemed like a deal

Cons: Could not use it, my Intel LGA 1155 mobo requires an 8 pin 12V power connector rather than the older 4 pin and this PSU doesn't have it. It's my fault, but knocking an Egg since there should have been some warning on the description and the instructions included are a joke.

Other Thoughts: I thought an ATX compatible PSU was ATX compatible. I suppose the description "ATX 12V v2.3" is the key. Better would be 1) why put in 12V? aren't they all 12V?? and 2) instead of v2.3 (version 2.3), why not "v2.3 4 pin connector only"???

Did you find this review helpful? Yes No

  • Glen K.
  • 11/6/2013 12:19:55 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsDOA

This review is from: SeaSonic S12II S12II 380B 380W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Arrived as ordered, I will review the replacement and adjust the review accordingly love the newegg RMA system - easy peasy.

Cons: DOA - will not power on at all

Other Thoughts: Since this meets my spec I will order a replacement

Manufacturer Response:

Hi GKinney, we are sorry for any inconvenience this DOA may have caused you and I hope the new unit will serve you better. If you have any issues or concerns, please contact us at any time. Thank you.

Did you find this review helpful? Yes No

  • Nolan L.
  • 8/13/2013 11:58:04 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsEfficient

This review is from: SeaSonic S12II S12II 380B 380W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Quiet, cool, lots of connectors, shielded, easy to install, efficient, good color.

Cons: Slightly under-powered. I bought this by mistake. I wanted a 500W PSU. It works for everything I have hooked up to it, so far. 3 hard drives, 3 fans, DVD drive, and Graphics card.

Other Thoughts: I love that it runs a lot cooler than my previous 2 PSU's
I think 1 I bought was defective cause it heated up my entire room A LOT. Also I was thinking my case had the PSU screw holes off-center because my other 2 PSU's on this build 1 screw hole was always off a bit. This PSU went in just fine with no hassles.

Did you find this review helpful? Yes No

  • Anonymous
  • 8/6/2013 12:48:40 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

4 out of 5 eggsnot perfect

This review is from: SeaSonic S12II S12II 380B 380W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: - slim flat cables
- easy & clear text moating what connectors goes where.
- subdue colour scheme & black cables.

Cons: The powder coating is not a coating at all but a cheep PAINT!
Which scratches to easy, & make overall build quality less then
impressing! (far apart from Enermax high quality of build & coating)

Other Thoughts: overall its ok plus so it looses 1 egg for me.

Did you find this review helpful? Yes No

  • Corey S.
  • 1/21/2013 5:57:45 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsDead Silent!

This review is from: SeaSonic S12II S12II 380B 380W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: This thing might as well be silent. Great for HTPC application. This is a well built power supply.

Cons: None. Completely happy.

Other Thoughts: I put this in an HTPC frontend. You really can't hear it!

Did you find this review helpful? Yes No

  • Mary M.
  • 12/22/2012 5:32:43 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsSmall put powerful

This review is from: SeaSonic S12II S12II 380B 380W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Powers a 2 hdd, 1 dvd drive average system for day to day usage. Cables are pretty long.

Cons: I don't expect to SLI two huge cards on this but thats not what I bought it for anyway.

Other Thoughts: This thing only comes with a single 4 prong connector for the CPU 12v extra line. Why it does this I have no idea but I looked around and it seems that as long as you don't over clock to 6.0 ghz its fine.

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

  • Jeffrey P.
  • 11/7/2012 8:41:52 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWorks great

This review is from: SeaSonic S12II S12II 380B 380W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

Pros: Plugged in and worked like a charm. Very silent.

Cons: none so far

Did you find this review helpful? Yes No

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Item#: N82E16817151072
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