Seasonic
Seasonic Focus SSR-850FM, 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
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
The newly upgraded FOCUS GM power supplies are the successor to the FOCUS Series. FOCUS series' affordability, reliability and efficiency made it instantly became the top seller in the power supply market after its launch in 2017. Besides the upgrade in performance and compatibility, the PSU housing, its packaging and the series naming are also updated to be in line with the concept of the OneSeasonic Initiative.
SpecPicks Verdict
SpecPicks classifies Seasonic Focus SSR-850FM, 850W 80+ Gold, Semi-Modular, Fits All ATX S… as a category leader on buyer feedback in the power supplies category, based on 79 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Seasonic's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.6★ average across customer reviews
- ✓ COMPACT SIZE: 140 MM deep fits ALL ATX systems.
- ✓ Backed by Seasonic's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- COMPACT SIZE: 140 MM 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.
Full Specifications
| Brand | Seasonic |
|---|---|
| Wattage | 850 watts |
| Fan Size | 120 Millimeters |
| Model Name | focus gm |
| Form Factor | ATX |
| 80 PLUS GOLD | Less energy gets wasted during power conversion; Cut down your electricity usage and be Eco-Friendly. |
| COMPACT SIZE | 140 MM deep fits ALL ATX systems. |
| Model Number | SSR-850FM |
| Connector Type | ATX |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 850 |
| Item Dimensions | 5.51 x 5.9 x 3.38 inches |
| Mfr Part Number | SSR-850FM |
Ready to buy?
Seasonic Focus SSR-850FM, 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 is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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