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ASRock Phantom Gaming PG-850PSF 850W SFX Power Supply, 80 Plus Platinum, Cybenetics Platinum & Lambda A++, ATX3.1 & PCIe 5.1 Ready, Fully Modular, 10-Year Warranty
ASRock

ASRock Phantom Gaming PG-850PSF 850W SFX Power Supply

Bottom line: The ASRock Phantom Gaming PG-850PSF 850W SFX Power Supply is a specs-and-price decision rather than a crowd-consensus one in the power supplies category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ Backed by ASRock's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

The ASRock Phantom Gaming PG-850PSF sets a new standard for small-form-factor power delivery, combining flagship efficiency with whisper-quiet operation. Certified 80 Plus Platinum and Cybenetics Platinum for exceptional energy efficiency, this PSU also achieves the prestigious Cybenetics LAMBDA A++ noise certification, guaranteeing ultra-quiet performance that's perfect for noise-sensitive SFF builds. It delivers a full 850W of clean, stable power in a compact SFX footprint, making it the ideal heart for high-performance mini-ITX or micro-ATX gaming rigs. Fully ready for the future, the…

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SpecPicks Verdict

SpecPicks scored ASRock Phantom Gaming PG-850PSF 850W SFX Power Supply using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. ASRock's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Premium 80 Plus Platinum Efficiency: Certified for exceptional energy efficiency (up to 92%), reducing heat output and operating costs while providing stable, high-quality power.
  • Superior Cybenetics Certifications: Achieves both Cybenetics PLATINUM efficiency and the elite LAMBDA A++ noise certification, ensuring ultra-quiet operation under various loads.
  • ATX3.1 & PCIe 5.1 Ready: Fully compliant with the latest standards, featuring a native 12V-2x6 connector with Dual Color TempGuard technology for next-generation graphics cards.
  • Compact High-Wattage SFX Form Factor: Delivers a full 850W of reliable power in a compact SFX size (100x125x63.5mm), perfect for building powerful small-form-factor (SFF) gaming PCs.
  • Intelligent 12V-2x6 Connector: The native Dual Color connector with TempGuard provides superior safety, preventing overheating and ensuring a secure connection.
  • Superior Build Quality: Utilizes 100% high-reliability Japanese capacitors for unwavering stability, performance, and longevity under heavy loads.

Full Specifications

BrandASRock
Wattage850 watts
Dimensions100x125x63.5mm
Model NamePG-850PSF
Unit Count1 Count
Form FactorSFX
Model Number90-UFP085-PFUAAB
CompatibilityPC
Connector TypeATX, PCI Express
Cooling MethodAir
Number of Fans1
Output Wattage850 watts
Item Dimensions3.94 x 4.92 x 2.5 inches
Mfr Part NumberPS-PG-850PSF
Number of Items1
Number of Packs1
Compatible DevicesPersonal Computer
Power Supply DesignFull Modular
Warranty Description10 years
Maximum Input Voltage120 volts_of_alternating_current
Full listing titleASRock Phantom Gaming PG-850PSF 850W SFX Power Supply, 80 Plus Platinum, Cybenetics Platinum & Lambda A++, ATX3.1 & PCIe 5.1 Ready, Fully Modular, 10-Year Warranty

Ready to buy?

ASRock Phantom Gaming PG-850PSF 850W SFX Power Supply, 80 Plus Platinum, Cybenetics Platinum & Lambda A++, ATX3.1 & PCIe 5.1 Ready, Fully Modular, 10-Year Warranty is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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ASRock Phantom Gaming PG-850PSF 850W SFX Power Supply, 80 Plus Platinum, Cybenetics Platinum & Lambda A++, ATX3.1 & PCIe 5.1 Ready, Fully Modular, 10-Year Warranty
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