Skip to: | | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - Newegg shopping upgraded ™

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

Seasonic FOCUS GM-850, 850W 80+ Gold, Semi-Modular, Fits All ATX Systems, Fan Control in Silent and Cooling Mode, 7 Year Warranty, Perfect Power Supply for Gaming and Various Application

Ships from United States. Fees for brokerage and duty included in price.

Sold and Shipped by Newegg

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • COMPACT SIZE: 140mm deep fits all ATX systems.
  • SEMI MODULAR: Provides the most common connections while allowing flexibility on the peripherals to reduce clutter and maximize airflow for a better ventilated system.
  • 80 PLUS GOLD: Less energy gets wasted during power conversion; Cut down your electricity usage and be Eco-Friendly.
  • SMART and SILENT FAN CONTROL: 120 mm FDB fan inside is regulated by Seasonic Smart and Silent Fan Control technology(S2FC), which optimizes the fan speed according to the needs of the system to create a more silent and comfortable experience.
  • 7 YEAR WORRY-FREE WARRANTY: Our commitment to superior quality.

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews
Seasonic FOCUS Semi-Modular Power Supply facing forward Seasonic FOCUS Semi-Modular Power Supply size Seasonic FOCUS Semi-Modular Power Supply internal structure Seasonic FOCUS Semi-Modular Power Supply cables what's in the box
Unboxing Video

Learn more about the SeaSonic USA FOCUS GM-850

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: Non-refundable
    • Return for replacement within: 30 days
  • This item is covered by's Replacement Only Return Policy.
Ownership: 1 week to 1 month
Verified Owner
1/ 5
After 10 hours of use, product no longer works. 7/22/2020 9:32:16 AM

Pros: -Best 10 hours of my life
-Really quiet
-Lasted longer than my last relationship

Cons: -Longevity

Overall Review: Didn't work after 10 hours. Had to return it.

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

Thank you for your comment and sorry to read your issue with your product. We do hope that you will be able to quickly get it exchanged and have your computer up and running in no time. Once again, this issue does not reflect the overall quality of our product and we are sorry for this.

Thank you.
Best regards,
Ownership: 1 week to 1 month
Verified Owner
3/ 5
Shipped missing a modular SATA cable, they can't replace it. 5/5/2020 11:19:07 AM

Pros: Does what it's supposed to do.

Cons: It is supposed to ship with 2 modular SATA cables, but it only came with one. After contacting Seasonic, they said they don't have any more and suggested I go online to buy one. I was not satisfied with that answer, seeing as the mistake is theirs. They replied that they don't have any and will wait and see if that changes but "it could be awhile" so that wasn't a good introduction to this company on my first purchase from them. If I didn't need the extra cable I would be annoyed, but I would accept it. But I actually do need it to hook up all my drives. The cables have 4 connectors each. So I'm stuck with 4 instead of the expected 8.

Overall Review: I believe that if they valued me as a customer and wanted to make things right, and they don't have any, at the very least their company should at least buy one and ship it to me to correct their error. It would be the right thing to do, which I politely suggested but they ignored entirely.

Unless they prove me wrong (and I will update this review if they do) it looks like this will be the first and last Seasonic product I will ever buy.

2 out of 4 people found this review helpful. Did you?
Manufacturer Response:
Hello Shane,

Thank you for your comment. We are sorry for this issue and as said, we will gladly ship you one as soon as we will have stock again. Unfortunately, right now due to recent event, we were not able to get stock. Please provide by email your address and we will take care of this once possible.

Thank you and sorry for the inconvenience.
Best regards,
Ownership: 1 week to 1 month
Verified Owner
1/ 5
Didn’t work 4/24/2020 10:13:14 PM

Pros: None

Cons: Didn’t even turn on

Overall Review: Hit or miss I guess.

1 out of 2 people found this review helpful. Did you?
Manufacturer Response:

Thank you for your comment and sorry to read your issue. We are doing our best to avoid such issue when you receive our products. It may happen and we are sorry for this. If you don't mind, please contact our support at to double check all this and if needed, contact Newegg to ask for an exchange.

Once again, we are sorry for the inconvenience.
Best regards,
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Seasonic Excellent as usual 4/23/2020 11:26:19 AM

Overall Review: I bought this one as the price was right, I know it wasn't fully modular however, it worked perfectly. Using the existing cables MB 8 pin, 24 pin was great, they were black no mustard and ketchup wires anywhere. The balance of the modular parts were all black.

2 out of 2 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Wonderful product 4/13/2020 8:51:43 PM

Pros: Really reduced the extra cables in my case.
Great power for my system
Fits beautifully under shroud
Lots of ties included for cable management!

Cons: Some of the cables were not clearly marked the paint for the PCIe had worn a little.

Overall Review: Love it only improvement would be having it be fully modular but I'm more than happy with my purchase!

2 out of 2 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
High Quality Product 4/1/2020 7:10:50 AM

Pros: So far ….. So good. This power supply is quiet and is well made.

Cons: A little confusing as what cables are what. Otherwise, this is a GREAT power supply.

Overall Review: Great product …… Good price. So far …. So Good.

2 out of 3 people found this review helpful. Did you?
ICON Loading...
Selected Items
  • Add to Wish List Found on 24 wish lists
Are you an E-Blast Insider?
Enter your email address to agree to receive promo codes from Newegg. You can unsubscribe at any time.
Subscribe Newegg e-Blast
Price Available at Checkout
Why can’t we show you details of this product?

Some manufacturers place restrictions on how details of their products may be communicated.

If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.