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SeaSonic Platinum Series SS-400FL2 Active PFC F3 400W ATX12V Fanless 80 PLUS Platinum Certified Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

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  • ATX12V v2.3 / EPS12V v2.91
  • 80 PLUS Platinum Certified
  • Fanless

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Power your system with ultimate efficiency and acoustics. The full modular and single +12V designed SeaSonic Platinum series fanless power supply is fourth generation Haswell CPU-ready and complies with the highest 80PLUS standard - 80PLUS Platinum. Fanless design with ultra-ventilated honeycomb structure offers silent operation without compromising cooling performance.

Exclusive DC Connector Panel with Integrated Voltage Regulation Module

Seasonic’s exclusive DC connector panel with integrated voltage regulation module optimizes efficiency and cooling by minimizing voltage drops and impedance for enhanced performance and reliability. The Platinum Series fanless power supply achieves up to ±2% of tight voltage regulation. This series power supply also has dual-sided PCB layout.

Exclusive DC Connector Panel with Integrated Voltage Regulation Module graph shows optimized efficiency

The full modular cabling design allows use of only the cables you need resulting in improved internal airflow and reduced system clutter. Easy-swap connectors allow for easy, quick and safe unplugging. High current gold-plated terminals ensure optimal signal transfer and stability of connected devices. All-in-one DC cabling design supports PC, IPC, workstation and server systems.

Full modular cabling design

80+ Platinum

80+ Platinum

This 80+ Platinum-certified series power supply delivers energy savings of up to 92% efficiency and a true power factor of greater than 0.9PF.

 

Japanese Capacitors

Seasonic uses durable 105°C Japanese Grade A capacitors and Conductive Polymer Aluminum Solid Electrolytic Capacitors on the Platinum Series fanless power supply for uncompromised performance, reliability and lifespan.

Strong Single +12V

Strong single +12V

The Platinum Series fanless power supply uses high single +12v rail design which provides enough power to your high-end components, including your high-end CPU and graphics card.

PCI-Express Connector

PCI-Express connector

One 6+2 / 6-pin PCI-Express connector supports high end graphics card for jaw dropping graphics performance.

Safety

Enjoy maximum safety

Enjoy maximum safety and stability thanks to comprehensive approvals.

What's Included:

box content

 


Learn more about the SeaSonic USA SS-400FL2 Active PFC F3

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 7 years
  • Limited Warranty period (labor): 7 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Standard Return Policy.
Ownership: more than 1 year
Verified Owner
3/ 5
Worked Great until it needed a fan!

Pros: Quite, great support. Easy install, all the wires disconnect, be perfect if it had a fan!

Cons: No fans, so dust builds up and fries the unit. I gave up on Seasonic after the 3rd unit failed.

Overall Review: If they re-designed it and added a super quiet fan to move air thru and stop dust from building up, then yes I would buy their power supplies again.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
1/ 5
DOA

Pros: N/A since unit is DOA

Cons: Dead On Arrival: does not power up. 5V light is on on the board but nothing happens when pressing either power or reset. Verified with an old Seasonic PSU that system is Ok. Very surprised to receive a dead unit.

Did you find this review helpful?
Manufacturer Response:
Hello Vitaly,

Thank you for your comment and sorry for this issue. We are also surprised and not really happy of such situation with your product because despite all our control, it happened to you and that's unpleasant to read. Please, kindly contact Newegg right away and ask for an exchange. They will quickly take care of this. Any questions or concerns you may have, you can contact us by email at usa@seasonic.com or newegg@seasonic.com

Once again, sorry for the inconvenience it may have caused.
Best regards,
Ownership: more than 1 year
Verified Owner
5/ 5
Still going strong 7 years later.

Pros: Quiet. Reliable.

Cons: None

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Yet another SeaSonic power supply purchased for my personal use!

Pros: Legendary quality with the SeaSonic brand and they back it up with a long warranty.
It's 100% modular connectors make a hassle free install, no tucking extra connectors that are not needed.
No fan means no noise produced.

Cons: None so far

Overall Review: You must have good air flow through this unit to keep it cool, heat is the enemy and it will not last if it stays
hot all the time.
I wish the manufacturers would incorporate some kind of method for the user to monitor the PSU temperature

1 out of 1 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
5/ 5
Going strong after 4 years of daily use!

Pros: I've used this PSU for hours a day for four years and it still works great. I'll probably buy the same to replace it.

Cons: None.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
1/ 5
Disappointing Combination of Cables and Connectors

Pros: None identified. Item was returned before installation.

Cons: - Too many molex connectors
- Not enough SATA connectors

Overall Review: For a modern PSU, this unit had far too many molex connectors and not nearly enough SATA. Without making a mess with adapters, it was not capable of powering my system. Aftermarket cables were difficult to find and it ended up taking less time to simply return it and purchase another brand.

2 out of 5 people found this review helpful. Did you?
Manufacturer Response:
Hello,

Thank you for your comment and sorry that the cable set didn't match your need. Just in case, if you need some extra cables, you can contact us and we will gladly assist you to let you know where to find our original cables. You can contact us using our website: www.seasonic.com/contact or newegg@seasonic.com. We do hope you will still consider us for any next power supply you may need.

Thank you for your comment and sorry the PSU couldn't match your needs.
Best Regards,
5/ 5
Continues to run flawlessly after 4.5 years

Pros: Quiet (obviously)
No power related unexpected shutdowns or reboots

Cons: none

Overall Review: This was mounted in a top-mount PSU case with a vent (with filter) at the top of the case, perfect design match for this PSU. With a 7 year warranty on it, I can only imagine it will work flawlessly for another 4.5 years.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Completely Silent

Pros: -Fanless
-Completely Silent
-80+ Platinum Efficient

Cons: -Somewhat Expensive, Unless you find it on sale, like I did
-"Haswell Ready" is kind of irrelevant, but it works just fine on newer platforms.

Overall Review: -The included cables were a little long for my build in the Node 304 (A fairly compact ITX case)
-The black sleeving is nice

Did you find this review helpful?
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