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Seasonic FOCUS GX-850 - 850W - 80+ Gold - Full-Modular - ATX Form Factor - Low Noise - Premium Japanese Capacitor - 10 Year Warranty - Nvidia RTX 30/40 Super & AMD GPU Compatible (Ref. SSR-850FX)

  • Based on 3,336 reviews
Condition: Used - Very Good
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Availability: Only 1 left in stock, order soon!
Fulfilled by USA BUY

Arrives Jul 9 – Jul 10
Order within 17 hours and 27 minutes
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Style: Fcous V2


Size: Gold 850W


Features

  • COMPACT SIZE - 140 mm DEEP; High power output to size ratio
  • FULL MODULAR; use only the cables you need to reduce clutter and improve airflow for a better ventilated system.
  • 80 PLUS GOLD; 87% efficient at 20% load, 90% efficient at 50% load, and 87% efficient at 100% load.
  • HYBRID SILENT FAN CONTROL; The industry's first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and cooling. This Hybrid Silent Fan Control functions in three operational stages: Fanless Mode, Silent Mode, and Cooling Mode.
  • 10 YEAR WARRANTY; Our commitment to superior quality.

Description

Seasonic engineers have created a brand new product line based on advanced technology emanating from many years of intensive active research. The result of this development is the solid FOCUS+ Series, which implements modern design and shows outstanding electrical performance. This power supply is small and entirely modular, which will be hard to resist. It is available in 80 PLUS Gold efficiency ratings.

Model Name: FOCUS Plus 850 Gold


Brand: Seasonic


Compatible Devices: Personal Computer


Connector Type: ATX


Output Wattage: 850


Form Factor: ATX12V


Wattage: 850


Cooling Method: Air


Item dimensions L x W x H: 5.51 x 5.91 x 3.39 inches


Item Weight: 1.6 Kilograms


Brand: ‎Seasonic


Series: ‎FOCUS Plus 850 Gold


Item model number: ‎SSR-850FX


Item Weight: ‎3.52 pounds


Product Dimensions: ‎5.51 x 5.91 x 3.39 inches


Item Dimensions LxWxH: ‎5.51 x 5.91 x 3.39 inches


Color: ‎850FX


Power Source: ‎AC


Voltage: ‎110 Volts


Batteries: ‎1 Lithium Ion batteries required.


Manufacturer: ‎Seasonic


Language: ‎English, English, English, English


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎June 27, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 9 – Jul 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Amazing!
Style: Core V2 Size: Gold 650W
Works perfectly. Was easy to install too. I will say tho, the cables were mad long. Maybe that’s how it is usually but that’s the only problem. Looks amazing!
Reviewed in the United States on May 11, 2025 by Anonymous

  • Seasonic! 👏🏼
Style: Core V2 Size: Gold 650W
Al precio es muy buena opción premium de fuente para mantener tus componentes seguros.
Reviewed in the United States on May 4, 2025 by jhonfre

  • PODEROSA Y CONFIABLE
Style: Focus V3 Size: Gold 1000W
Fuente de poder excelente y confiable a buen precio
Reviewed in the United States on April 20, 2025 by ISoyFelipe

  • Bih
Style: Core V2 Size: Gold 850W
Working like a mf cuh
Reviewed in the United States on April 23, 2025 by Hayden

  • Solid build.
Style: Focus V3 Size: Gold 750W
Needed to purchase a 4 pin motherboard power split, since this is for current DIY builds. Solid power supply for an old AMD X4 Phenom board. Cables do look different than other power supply manufacturers that I usually buy and, considering you can't always swap cables because companies intentionally change up the individual wiring with the pin on the power supply not in the correct position and the wire having to cross to the correct pin on the molex going to the unit needing power, that makes it easier to not accidently mix. I had a problem with Corsair using a standard looking cable iwth no marking and I guess I had a similar cable on my table... which fried a 4K optical drive. Also keep in mind revision changes that also mean that the same model may not use the same cables either. Just enough room for the power supply fan on the small form factor case I was using. ... show more
Reviewed in the United States on January 18, 2025 by ElleWishes

  • Quality
Style: Core V2 Size: Gold 650W
In business for many years
Reviewed in the United States on April 20, 2025 by saberback

  • High Quality Power and Exceptional Versatility
Style: Focus V3 Size: Gold 850W
This is the best power supply if you are looking for one of the most reliable, efficient, and versatile options on the market. This power supply is fully modular which makes cable management a breeze when only using the cables you absolutely need. It also includes both standard PCIe power cables in addition to the 12VHPWR Cable that most newer NVIDIA graphics cards use. The cables themselves are well made, and they fit the aesthetic of most systems without the need for cable sleeves or extensions. For my system, this has powered everything effortlessly without any crashes, performance drops, etc. The power hungry parts in my PC are a Ryzen 7 7800X3D and an RTX 4080 Super which it handles just fine along with all the other components. I am not much of an overclocker, but I have found that it handles increased power limits on the GPU just fine too. The power supply is very efficient and doesn't waste or use any additional power than what is needed, and it has worked great for me in the few months I have owned it. I like that it includes all the cables needed to support a triple 8-pin GPU power connector, two CPU power connectors, the 12VHPWR cable, as well as all the cables for powering accessories and storage drives with the Molex and SATA cables. Overall, there really isn't much to say other than this is a very high quality power supply that should more than hold up for several years before a replacement is needed. I am very happy with it and I highly recommend it! ... show more
Reviewed in the United States on October 17, 2024 by AstralDJ

  • Working fine , but .....
Style: Focus V3 Size: Gold 1000W
after i replaced the PSU by this one , PC works very fine but sometimes the video files freeze for a second, dunno if its from the seasonic PSU or the COmeap PSU adapter , this issue didn't happen before with my old HP PSU
Reviewed in the United States on August 12, 2024 by Mamdouh

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