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SeaSonic USA > 
Item#: 9SIA4CP1GF9405

SeaSonic SS-400ES Bronze 400W ATX12V v2.31 80 PLUS BRONZE Certified Active PFC Power Supply - OEM

  • ATX12V v2.31
  • 80 PLUS BRONZE Certified
  • 47 - 63 Hz
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Learn more about the SeaSonic USA SS-400ES Bronze


SS-400ES Bronze


ATX12V v2.31
Maximum Power
8cm Double Ball Bearing
Main Connector
80 PLUS BRONZE Certified
Over Voltage Protection
Input Frequency Range
47 - 63 Hz
>100,000 Hours
CUL, TUV, CB, CCC, CE, FCC, C-tick
5.9" x 5.5" x 3.4"


Support the latest Intel & AMD Socket
PCI Express & Serial ATA ready
Double forward converter circuit
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

Manufacturer Warranty

3 years limited
3 years limited

Quick Info


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

Customer Reviews of the SeaSonic USA SS-400ES Bronze

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  • Anthony V.
  • 6/2/2010 7:58:08 AM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsRock Solid and Quiet

Pros: You might pass over these SeaSonic supplies because they aren't flashy. You won't see much chrome or really any LEDs, but what good are LEDs if the supply dies in a year? I need a solid stable supply that lasts. I have this particular model in my media center computer and and just keeps humming ( quietly ) along.

Doesn't rely on a 120mm side fan for cooling. Great for small cases and media cases.

Cons: None

Other Thoughts: Not for gaming rigs... but if you're building a gaming rig you should know that.

Did you find this review helpful? Yes No

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Computer Hardware > 
Power Supplies > 
Power Supplies > 
SeaSonic USA > 
Item#: 9SIA4CP1GF9405
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