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Seasonic FOCUS PX-850, 850W 80+ Platinum Full-Modular, Fan Control in Fanless, Silent, and Cooling Mode, 10 Year Warranty, Perfect Power Supply for Gaming and Various Application, SSR-850PX.

Ships from China. Most customers receive within 7-9 days.

Sold and Shipped by Electronic Market a-seller

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
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  • COMPACT SIZE: 140 MM deep fits ALL ATX systems.
  • FULL MODULAR: Use only the cables you need to reduce clutter to maximize airflow for a better ventilated system.
  • 80 PLUS PLATINUM: Less energy gets wasted during power conversion; Cut down your electricity usage and be Eco-Friendly.
  • PREMIUM HYBRID FAN CONTROL: Unsurpassed silent performance in Fanless Mode. The fan control button at the back of the power supply allows users to customize cooling needs by selecting between Seasonic S2FC (fan control without Fanless Mode) and S3FC (fan control including Fanless Mode).
  • 10 YEAR WORRY-FREE WARRANTY: Our commitment to superior quality.

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews
Seasonic Focus side view and Seasonic logo and 80 plus icon
Seasonic Focus Length, width and height

Fits All
ATX Systems

140 mm deep
Compact size improves ventilation

Seasonic Focus internal structure close-up

High
Quality
Components

Solid performance and stable output

Seasonic Focus Modular Cables close-up

Fully
Modular
Cables

Easy installation and reduced clutter

Seasonic Focus and Packing box and cables and accessories
Unboxing

Learn more about the SeaSonic USA FOCUS PX-850 (SSR-850PX)

Warranty, Returns, And Additional Information
Anonymous
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Amazing PSU 6/16/2020 9:29:41 AM

Overall Review: This is a great PSU with all of the options that I could have wanted. Full modular is a big selling point, and provided for a clean install. I am currently running this PSU at around the mid way point for wattage, as that is where the best performace and quietest fan operation seems to be in my experience. Worth every penny of the normal retail price.

2 out of 2 people found this review helpful. Did you?
Anonymous
Ownership: 1 month to 1 year
Verified Owner
5/ 5
dead silent 6/14/2020 5:38:05 AM

Pros: high quality psu

Cons: none

Overall Review: highly recommended to everyone

1 out of 1 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Seasonic FOCUS PX-850, 850W 80+ Platinum Full-Modular, Fan Control in Fanless, Silent, and Cooling Mode, 10 Year Warranty, Perfect Power Supply for Gaming and Various Application, SSR-850PX 4/27/2020 10:39:01 AM

Pros: More than enough cables for an SLI setup.
Can supply the motherboard with both 2x8pin and 2x4pin power connectors.

Overall Review: Very happy with this power supply. It is working fine.

1 out of 1 people found this review helpful. Did you?
Anonymous
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Quiet and effortless install 4/22/2020 12:11:38 PM

Pros: Works with the Fractal Define Nano, no issues and the slim profile makes it super easy to route cables and give clearance for the GPU above.

Powers a 9900k and a 2080ti no problems even with OC.

I have it on normal mode but its still whisper quiet, I can't hear it.

Cons: It won't come with any fancy stickers or RGB.

Overall Review: Had the G-750 series for 7 years and finally replaced to put that in another build.
Buy the upper tier Seasonics if you value years of hassle free service and want to forget PSUs even exist.

Did you find this review helpful?
Ownership: 1 day to 1 week
Verified Owner
5/ 5
Seasonic power supply 850 watt 4/6/2020 5:06:53 PM

Pros: Works great, whisper quiet, fantastic eco mode.

Cons: None (seriously)

Overall Review: A fantastic product couldn’t ask for more for what I paid (sale) sticking with seasonic brand very reliable.

Did you find this review helpful?
Ownership: 1 day to 1 week
Verified Owner
4/ 5
Good value for the cost, time will tell. 3/19/2020 12:15:47 PM

Pros: I appreciate that it didn't have a ton of extra material in the box. You get what you need, and a whole bunch of cables for pretty much any set up you'd run for a modern PC. The reviews on the power delivery are what brought me to this PSU. I don't hear any noise, and it runs in my PC just fine.

On first boot, the MB did a test loop, since I failed to run the PSU through a "Test" boot as the instructions recommend. Once that was sorted, no issues so far.

Now to see how it runs for the next 5-10 years.

Cons: My previous EVGA 750 PSU had better cables.
The main power cables have a nice shield to them, but the PCI power cables, SATA, etc, are just plastic shielded without the nice cloth exterior. It may have 0 difference on longevity and power delivery, but it doesn't feel as quality in that respect.

Overall Review: +A good PSU with a large variety of modern cable options.
(If you want a plethora of IDE connectors, look elsewhere.)
+Quiet.
+Good consistent power delivery for in the segment.
+Worked out of the box. (Always a plus.)

-The SATA and PCI cables are plastic, with no cloth sleeving.
-I'd prefer a bit more venting on the top of the PSU, but I'm not the engineer. They obviously thought it was fine.

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Anonymous
Ownership: more than 1 year
Verified Owner
5/ 5
A very powerful but silent power supply 2/22/2020 9:12:02 AM

Pros: - Super quiet
- Ton of power ports to power just about any configuration
- Surprisingly compact

Overall Review: A solid power supply for any high end setups. I picked mine up back in March 2018 and it has served me well. My PC grew up over time and now runs an RTX 2080 and an I7-870K overclocked and this things has been delivering. The most surprising thing was when I came to clean the case PSU filter, I realized the fan never actually had to spin a single time since I started using it.

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
PSU 12/22/2019 6:29:08 AM

Pros: Easy to Install
PSU is more than I need
Not a single problem yet=Easy 7 month running time, looking forward to having this for many years

Cons: none that I know of

Overall Review: would order again, but only for a brand new computer build(may be several years on that)

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