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Black rectangular ATX power supply with a 135mm Future Dusk fan and flat modular cables visible

Thermaltake

Thermaltake Toughpower GF3 850W power supply PS-TPD-0850FNFAGU-4

SKU CH-ZZY0-QSY75 MPN PS-TPD-0850FNFAGU-4

An 850 W ATX 3.1 power supply with native 12V-2x6 GPU connectors, full modular flat cables, 140 mm zero-fan cooling and 80 Plus Gold efficiency

  • Max wattage850 W
  • Modular cablingFull Modular
  • Fan configuration1 × 140 mm Hydraulic Bearing Smart Zero Fan
  • Power factor correctionActive
  • Main power connector24Pin
  • 12V railsSingle

Model 850W

  • Native PCIe 5.1 12V-2x6 connector delivers up to 600W for modern GPUs
  • ATX 3.1 specification handles 3x GPU power excursions and 2x total power excursions
  • 80 Plus Gold certified efficiency with Cybenetics A- noise rating for quiet operation
  • Full modular flat cables with colour-matched connectors simplify routing and cable management
  • 135mm Future Dusk hydraulic bearing fan with Smart Zero mode for cooling and style

Toughpower GF3 850W ATX 3.1 power supply

This fully modular unit delivers 850 W of continuous power and meets the ATX 3.1 design standard. Japanese main capacitors and a single +12 V rail provide stable output for modern desktop builds. The 140 mm hydraulic bearing fan uses a Smart Zero mode to stay off at low loads. Eighty Plus Gold certification confirms high efficiency across typical workloads.

Sustained load behaviour and noise profile

Under continuous demand the power supply maintains its rated output while the fan ramps gradually to meet thermal needs. Cybenetics A- noise certification indicates quiet operation even when the system draws heavy current for extended periods. Full protection circuits including OCP, OVP, UVP, OPP, SCP and OTP guard components during prolonged stress. The 150 mm chassis depth fits standard ATX cases without restricting airflow.

Native PCIe 5.1 12V-2x6 connector

Two native 12V-2x6 cables each support up to 600 W, enabling direct connection to current-generation graphics cards without adapters. The matcha-coloured H++ connector reveals a visible colour cue only when the plug is not fully seated. Flat modular cables with colour-matched ends simplify routing and improve case aesthetics. This connector specification is the decisive factor for GPU compatibility.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $92.99
Cheaper than about 70% of the 10,869 comparable items (median $142.99).
Max wattage 850 W
Typical for this category: the median of 930 items is 850 W.

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Specifications

Product
Brand nameThermaltake
Product lineToughpower GF3 Series
Model namePS-TPD-0850FNFAGU-4
Product typeATX 12 V v3.1
Ports & slots
PCIe power connectors12 V-2 × 6
Output type+3.3 V@22A, +5 V@22A, +5VSB@3A
Connection types1 × 12VHPWR (12+4) PCIe / 1 × 24 pin ATX / 1 x Floppy / 12 x SATA / 2 × 8 pin (4+4) EPS (CPU) / 4 × 4 pin Peripheral / 4 × 8 pin (6+2) PCIe
Power
Max wattage850 W
Modular cablingFull Modular
Power factor correctionActive
Main power connector24Pin
12V railsSingle
Efficiency certification80 PLUS GOLD Certified
Built-in protectionOCP/OVP/UVP/OPP/SCP/OTP
Supply voltage100–240 V
AC input frequency50 Hz - 60 Hz
Rated input current10–5A
Size & build
Product dimensions5.9 in × 3.4 in × 6.3 in
Shipping weight3.45 kg
Package size312 × 236 × 157 mm
Compatibility
Haswell compatibilityYes
PSU length limit150 mm
Environment & compliance
PSU noise ratingCybenetics A-
Regulatory approvalsCE/UKCA/cTUVus/TÜV/FCC/IC/BSMI/EAC/CB/BIS/KCC
More details
Fan configuration1 × 140 mm Hydraulic Bearing Smart Zero Fan
Mean time between failures100,000 h Minimum

Other versions of this model

5 more in the same range

Questions about this item

How loud is the 140 mm hydraulic-bearing fan during continuous 24/7 operation?

The unit carries a Cybenetics A- noise rating and the Smart Zero Fan mode keeps the 140 mm hydraulic-bearing fan idle until load demands cooling, so all-day running stays very quiet.

Which motherboard and GPU connectors must my build already provide for this fully modular 850 W ATX 3.1 unit?

You need a 24-pin ATX socket, two 8-pin EPS (4+4) CPU headers, and the new 12V-2x6 (12+4) PCIe 5.1 connector; all cables detach so you only plug what the board and card require.

Will the single +12 V rail and 150 mm depth work with an older Haswell-era motherboard and standard ATX case?

Yes — Haswell support is confirmed, the single +12 V rail delivers the full 850 W to legacy components, and the 150 mm length fits most traditional ATX chassis.

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