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Thermaltake Toughpower GF A3 Snow Edition 850W 80+ Gold Full Modular SLI/Crossfire Ready ATX 3.1 Power Supply; PCI-E 5.1 450W 12V-2x6 Connector Included; PS-TPD-0850FNFAGU-N; 10 Year Warranty
Thermaltake

Thermaltake Toughpower GF A3 Snow Edition 850W 80+ Gold Full Modular SLI/Crossfire Ready ATX 3.1 Power Supply; PCI-E 5.1 450W 12V-2x6 Connector Included; PS-TPD-0850FNFAGU-N; 10 Year Warranty

Bottom line: The Thermaltake Toughpower GF A3 Snow Edition 850W 80+ Gold Full Modular ($124.75 on Amazon as of 2026-10-06): ATX 3.1 compliant with native PCIe 5.1 12V-2x6 450W connector for RTX 40/50 GPUs; main trade-off: 850W caps heavily overclocked RTX 5090 or multi-GPU rigs.

$124.75

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Buy on Amazon — $124.75 Compare to similar power supplies

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.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ ATX 3.1 compliant with native PCIe 5.1 12V-2x6 450W connector for RTX 40/50 GPUs
  • ✓ 80 Plus Gold certified, 60% low-load efficiency and 200% power excursion headroom
  • ✓ Fully modular flat low-profile cables for cleaner routing in white builds
  • ✓ Snow white shroud and cables suit all-white PC builds

Cons

  • ✗ 850W caps heavily overclocked RTX 5090 or multi-GPU rigs
  • ✗ White finish shows dust more than a black unit
  • ✗ Gold tier, not Platinum/Titanium efficiency under high load
  • ✗ Single +12V rail lacks the multi-rail OCP some builders prefer

Manufacturer description

To fully support next-gen hardware, Toughpower GF A3 Snow Series (850W/1050W) is designed to meet ATX 3.1 standards, including a PCIe Gen 5.1 12V-2x6 connector. The GF A3 Gold series delivers 80 PLUS Gold efficiency, it also offers stability, durability, and reliability. For users who crave for a pure white build, this power supply can definitely meet their demands. Toughpower GF A3 Snow Gold series is fully compatible with Intel ATX 3.1 Specifications which supports up to 200% power excursion, reaches 60% low load efficiency and complies with required power supply timing standards…

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SpecPicks Verdict

SpecPicks scored Thermaltake Toughpower GF A3 Snow Edition 850W 80+ Gold Full Modular… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Thermaltake'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

  • 80 Plus Gold Certified and Fully Compatible with Intel ATX 3.1 Standards
  • PCIe Gen 5.1 Ready with 12V-2x6 Connector
  • Made to Comply with the Latest Graphics Cards
  • High Amperage Single +12V Rail & High-Class Technologies
  • Fully Modular Low-Profile Flat Cables

Full Specifications

BrandThermaltake
Wattage850 watts
Model NameGF A3 850 White
Form FactorATX
Model NumberTTP-0850AH2FLG
Connector TypeATX, PCI Express
Cooling MethodAir
Number of Fans1
Output Wattage850 watts
Item Dimensions5.9 x 5.5 x 3.4 inches
Mfr Part NumberPS-TPD-0850FNFAGU-N
Number of Items1
Compatible DevicesPersonal Computer
Power Supply DesignFull Modular
Warranty Description10 Year Manufacturer
Maximum Input Voltage240 volts_of_alternating_current
Minimum Input Voltage100 volts_of_alternating_current
Item dimensions L x W x H5.9 x 5.5 x 3.4 inches
System Bus Connector TypeATX
Connector Type Used on CableATX, PCI Express

Ready to buy?

Thermaltake Toughpower GF A3 Snow Edition 850W 80+ Gold Full Modular SLI/Crossfire Ready ATX 3.1 Power Supply; PCI-E 5.1 450W 12V-2x6 Connector Included; PS-TPD-0850FNFAGU-N; 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.

Buy on Amazon — $124.75

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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Thermaltake Toughpower GF A3 Snow Edition 850W 80+ Gold Full Modular SLI/Crossfire Ready ATX 3.1 Power Supply; PCI-E 5.1 450W 12V-2x6 Connector Included; PS-TPD-0850FNFAGU-N; 10 Year Warranty
$124.75
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