Search  for anything...
Seasonic

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 3,152 reviews
Condition: New
Checking for product changes
$104.99 Why this price?
Save $55.00 was $159.99

Buy Now, Pay Later

As low as $17.50 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Nov 24
Order within 18 hours and 54 minutes
Available payment plans shown during checkout

Style: FV2-10 YEAR WARRANTY


Size: 850 Watts


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


Country of Origin: ‎China


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: Sunday, Nov 24

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Quality PSU with a modern touch
Style: VGX-12 YEAR WARRANTY Size: 850 Watts
Very easy PSU to work with. No noticeable noise. Love that it comes with a cable just for newer GPUs, RTX 4080 Super in my case. Nothing of issue to note. Great price. Seasonic's been my go-to for some time now and they don't disappoint.
Reviewed in the United States on May 13, 2024 by Pablo
    • It’s all about the cables!
Style: FV3-10 YEAR WARRANTY Size: 1000 Watts
Seasonic is essentially the gold standard for PSU’s. You can find a lot of excellent in depth reviews on this unit that prove it’s excellent performance. However, there is one aspect of every review that is always overlooked, the cables! I previously had a very expensive PSU from another brand. The reviews were stellar so I bought it without hesitation. The cables were terrible, with tons of redundant splits/connections, with stiff unbendable sleeves. Aftermarket cable replacements were pretty much non existent. This Seasonic PSU has fantastic cables! They are durable, very flexible, with a huge variety of individual cables with great connections. Most importantly, Seasonic has stuck with this pin layout for a long time. This makes replacing or upgrading the cables a much easier and cost effective proposition. ... show more
Reviewed in the United States on April 29, 2024 by richard bixler
    • A fine replacement for the G-series
Style: Focus+ Gold Size: 650W
This is an excellent power supply for a system with one powerful graphics card or two mid-range cards. A lighter system would be better-served by a version of same with lower wattage. FEATURES: The cable layout is like so: 1 x 24-pin motherboard (sheathed) 1 x 4/8-pin CPU (sheathed) 2 x 6/8-pin PCIe (sheathed) 2 x 4 SATA (not sheathed) 1 x 3 molex (not sheathed) 1 x floppy (not sheathed) This is a fully modular power supply. Modularity means that some or all cables are attached separately so you can pick and choose what you need. This feature becomes more important as wattage goes up so you won't obstruct airflow with unused cables. The cable attachment mechanism is nice and chunky; better than flat inserts that put all four wires in line. PERFORMANCE: Fifteen years ago, most power supplies were about 70% efficient: for a 100W load, they'd pull about 140W from the wall. Not anymore. We now have six major PSU ratings: 80 Plus and 80 Plus Bronze, Silver, Gold, Platinum, and Titanium. These correspond to half-load efficiencies of 80%, 85%, 88%, 90%, 92%, and 94%. Efficiencies at 1/5 and 4/5 load are about 4% less than half-load. This unit is Gold-rated, and according to PCPer, meets the 90% efficiency requirement for that certification. There isn't a strong economic argument for efficiency. Relative to a Bronze PSU, the FOCUS saves about $5 a year for a 24/7/365 100W load in most parts of the country. More noticeable is the acoustic difference. Every watt that isn't going into the system needs to be vented from the PSU. Less efficient units require a bigger or faster fan, which makes more noise. The fan in this one doesn't even turn on until a 200W draw and doesn't begin to ramp up until 400W. For the overwhelming majority of systems the overwhelming majority of the time, it'll be completely inaudible. I haven't commented on ripple and other low-level power characteristics, partly because they're exemplary (par for the course for Seasonic), but also because they're irrelevant. Short of a no-brand $15 tin-box special, just about every PSU on a retail shelf is good enough for a modern system if the wattage is adequate. Computers require less power than they ever have (outside of gaming and overclocking) and motherboard power regulation is better than ever. This FOCUS has no bad behaviors under load, but you could put a $30 Corsair in your system with nary a difference. IN SUM: This is an excellent PSU for a system with a serious graphics card, and where noise performance and efficiency are at a premium. It's also rather well-priced like the G-series that preceded it. I've had at least four Seasonic power supplies. None have failed. None have had coil whine or strange fan behaviors that I've seen even on high-end models from other brands. While Seasonic is an OEM for other manufacturers, I believe their own products represent the best they can do. As above, I don't think this level of performance is strictly necessary, but if you're willing to pay for it, you could hardly pick a better PSU. Just run your system by PCPartpicker's excellent power calculator before settling on a wattage. ... show more
Reviewed in the United States on August 29, 2017 by D. Alexander
    • Looks to be a quality product!
Style: FV3-10 YEAR WARRANTY Size: 1000 Watts
Impressed by the quality of the cables during install. Also came with plenty of extra’s if needed. Runs silent and without issues so far! This is my first go at this brand and i’m hoping it will be a good one!
Reviewed in the United States on May 15, 2024 by Shawn
    • 10/10 Recommend
Style: FV3-10 YEAR WARRANTY Size: 750 Watts
The Seasonic Focus V3 GX-750 has been a fantastic addition to my PC build, offering reliable power delivery, exceptional efficiency, and future-proof compatibility. Additionally, its 10-year warranty provides unmatched peace of mind, ensuring long-term reliability and support.
Reviewed in the United States on June 28, 2024 by Austin
    • easy 5 star
Style: FV3-10 YEAR WARRANTY Size: 1000 Watts
this unit is excellent. great price for the quality you are getting. no issues setting up and cables are very high quality which is a plus. easy to register for the warranty.
Reviewed in the United States on June 13, 2024 by Barry Brooks
    • Even though I ordered it from Korea, delivery is fast and it works flawlessly.
Style: FV3-10 YEAR WARRANTY Size: 1000 Watts
Thank you for the fast delivery. Because it is free-voltage, you can use it by purchasing a separate power cord in Korea. It was easy to assemble because it included a new standard cable that can be used with the graphics card.
Reviewed in the United States on May 12, 2024 by CHANHO
    • Great High Quality ATX 3.0 PSU
Style: VPX-12 YEAR WARRANTY Size: 1200 Watts
Review Image by Philip Philip
Review Image by Philip Philip
Review Image by Philip Philip
The Seasonic Vertex PX 1200 is a great high quality power supply that offers great power efficiency for a great price. Its standard size also makes it easy to fit into almost any build. The cables are individually sleeved giving them an almost braided feel because this power supply is a native ATX 3.0 PSU if offers a direct 12VHPWR connector for out of box support of the 30/40 Series Nvidia GPUs. My only real gripe with the PSU is those individually sleeved cables I mentioned earlier yeah they’re very long, honestly longer than they need to be and that makes them a blessing and a curse if you’re working with a large case you’ll have ample cable for you’re build to ensure everything is powered without putting strain on the connectors. If you’re in a more mid-sized or small form factor build you’ll want to pull your hair out from having to manage these cables. You can see in my own build which is in the NZXT H9 which is by no means a tiny case I tried and did okay but towards the bottom I just had to give up. Overall great high quality PSU and because of Seasonic’s rock solid reputation and stellar quality they will always be my go to for power supplies. UPDATE: had to exchange for the same model because mine had nasty coil whine under load sounded like a pack of bees were inside my PC. I’m not going to knock any stars off the review because coil whine is pretty much unavoidable most PSUs will exhibit some form of it it’s just a matter of how noticeable it’ll be. Even my new one still has very faint coil whine it’s just I have to have my ear directly up to the PSU under load to hear it. ... show more
Reviewed in the United States on April 22, 2024 by Philip Philip

Can't find a product?

Find it on Amazon first, then paste the link below.