Are you an E-Blast Insider?
Make informed decisions with expert advice. Learn More

Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.
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
- ATX12V v2.3 / EPS12V v2.91
- 80 PLUS Platinum Certified
- Fanless
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.


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.

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

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

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

Enjoy maximum safety and stability thanks to comprehensive approvals.
What's Included:

Warranty & Returns
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
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-626-969-9966
- Support Website
- View other products from SeaSonic USA
Pros: Great build quality Great performance Good price 80+ Platinum Completely silent Fully modular What more do you need to know? If you want a silent PSU for a low power work rig or HTPC or heck even a light gaming rig, this is the PSU for you.
Cons: Because you have to mount it one way, if you have a case without two sets of PSU screw holes to allow you to mount your PSU upside down/rightside up, you may wind up in a situation where you cannot mount this PSU properly.
Overall Review: Wanted a fully modular, high quality, silent PSU to power my office rig, and couldn't be happier with this. Using a Fractal Node 304 case, ASRock FM2A85X-ITX mobo and A8-5600k so didn't need much power. I don't have a PSU tester so I cannot comment directly on the electrical quality of the unit, but review sites with the equipment to test properly, like jonnyguru, give this unit top scores.