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

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

By SpecPicks Editorial · Verified 2026-07-22

$159.99
Buy on Amazon — $159.99 Compare to similar power supplies

*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.

Bottom line: The FOCUS PX-850 | 850W | 80+ Platinum | Full-Modular | ATX Form Factor | Low Noise | Premium Japanese Capacitor | 10 Year Warranty | Nvidia RTX 30/40 Super & AMD GPU Compatible (Ref. SSR-850PX) is a niche pick — read recent reviews before buying in the power supplies category, priced around $159.99. Read recent reviews carefully before committing.

Thanks to its small form factor the focus+ Platinum 850 watt power supply is a Mighty solution for those, who want to implement a smaller HTPC system or living room computer. This High quality unit is built with top-rated highly reliable aluminum electrolytic solid capacitors and it features Seasonic new cable-free connection design where the back panel and the PCB (printed circuit board) are connected by a copper plate. This premium design feature is a breakthrough solution that lowers the chance of production errors and improves output power quality.

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SpecPicks Verdict

SpecPicks classifies Seasonic FOCUS PX-850 | 850W | 80+ Platinum | Full-Modular | ATX… as a niche pick — read recent reviews before buying in the power supplies category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Seasonic's positioning sits within the broader category mid-tier. 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

  • ✓ Voltage: 100 V - 240 V
  • ✓ 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

  • Voltage: 100 V - 240 V
  • Current: 12 - 6 a
  • Frequency: 50 Hz - 60 Hz
  • Total continuous power: 850W
  • 80 plus Platinum

Full Specifications

BrandSeasonic
Current12 - 6 a
Voltage100 V - 240 V
Wattage850
Fan Size120 Millimeters
Frequency50 Hz - 60 Hz
Model NameFOCUS Plus 850 Platinum
Unit Count1.0 Count
Form FactorATX12V
Model NumberSSR-850PX
Built-In MediaPower Supply
Connector TypeATX
Cooling MethodAir
Item Type NamePower Supply

Ready to buy?

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

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*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.

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Seasonic FOCUS PX-850 | 850W | 80+ Platinum | Full-Modular | ATX Form Factor | Low Noise | Premium Japanese Capacitor | 10 Year Warranty | Nvidia RTX 30/40 Super & AMD GPU Compatible (Ref. SSR-850PX)
$159.99
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