Search  for anything...

Thermaltake Toughpower GT 850W ATX 3.1 Standard Power Supply; 80 Plus Gold Efficiency; Smart Zero Fan; Native 450W PCIe 5.1 Connector; PS-TPT-0850FNFAGU-3; 5 Year Warranty

  • Based on 566 reviews
Condition: New
Checking for the best price...
$94.99 Why this price?
Save $15.00 was $109.99

Buy Now, Pay Later


As low as $15.83 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE refund/replacement until Jan 31, 2026

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, May 20
Order within 13 hours and 25 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Style: Gold (ATX 3.1)


Size: 850W


Color: Black


Features

  • ATX 3.1 and PCIe 5.1 Support: Fully compatible with Intel ATX 3.1 specifications, with native PCIe 12V-2x6 (12+4 pin) connectors for modern GPUs.
  • 80 PLUS Gold Efficiency: Provides up to 90% efficiency, reducing energy consumption and heat output during operation.
  • Smart Zero Fan Technology: Automatically adjusts fan speed based on load, minimizing noise during low-load operations.
  • Fully Modular Design: Includes low-profile flat black cables, making cable management easier and improving airflow inside your case.
  • High Amperage Single +12V Rail: Provides reliable and stable power delivery, optimized for high-end gaming and workstation builds.

Description

The Toughpower GT Series is built to meet modern power demands, supporting the latest ATX 3.1 standards. Available in 750W and 850W models, it provides 80 PLUS Gold efficiency and includes a native PCIe Gen 5.1 12+4 pin connector for high-performance GPUs. With Smart Zero Fan technology and a 120mm hydraulic bearing fan, it ensures quiet operation and reliable power delivery. Backed by a 5-year warranty, it offers stable, efficient performance for demanding users. •P/N: PS-TPT-0850FNFAGU-3 •Watts: 850W •Max Output Capacity: 850W •Color: Black •Dimensions: 150mm(W)x86mm(H)x140mm(D) •PFC (Power Factor Correction): Active PFC •Power Good Signal: 100-250 msec •Hold Up Time: 17msec at 80% load •Input Current: 10A Max. •Input Frequency Range: 50Hz-60Hz •Input Voltage: 100-240V~ •Operating Temperture: 0°C to + 40°C •Operating Humidity: 5% to 85% •Storage Temperture: -40°C to + 70°C •Storage Humidity: 5% to 95% •Cooling System: 12cm Hydraulic bearing fan •Efficiency: Meet 80 PLUS® Gold at 115Vac input. •MTBF: 100 •Safety Approval: CE/UKCA/ICES/TUV/LVD/RCM/CB/FCC/cTUVus/BSMI/CCC/BIS/S-MARK •PCI-E 6+2PIN: 4 •PCI-E 12+4PIN: 1(450W) •Protection: OVP/UVP/OCP/OPP/OTP/SCP

Model Name: Toughpoewr GT 850


Brand: Thermaltake


Compatible Devices: PC


Connector Type: ATX, Molex, PCI Express, SATA


Output Wattage: 850 Watts


Form Factor: ATX


Wattage: 850 watts


Cooling Method: Air


Item dimensions L x W x H: 5.9 x 3.4 x 5.5 inches


Item Weight: 5.4 Pounds


Brand: ‎Thermaltake


Series: ‎Toughpoewr GT 850


Item model number: ‎PS-TPT-0850FNFAGU-3


Item Weight: ‎5.4 pounds


Product Dimensions: ‎5.9 x 3.4 x 5.5 inches


Item Dimensions LxWxH: ‎5.9 x 3.4 x 5.5 inches


Color: ‎Black


Voltage: ‎120 Volts


Manufacturer: ‎Thermaltake


Date First Available: ‎September 28, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Muy buen producto.
Style: Gold (ATX 3.1) Size: 850W Color: White
En funcionalidad está perfecta, presentación y empaque excelente, el único detalle que no me convenció mucho fué la pintura blanca de su recubrimiento, siento que en algún momento puede ponerse amarilla al igual que el blanco de los cables, pero es mi opinión, no es que sea un hecho, me en funcionalidad todo excelente. ... show more
Reviewed in the United States on November 13, 2025 by CARLOS PABON GARZON

  • great “budget” 3.1 psu
Style: Gold (ATX 3.1) Size: 850W Color: Black
I have it running a 9800x3d and a 5070ti with the pcie 5 cable, I definitely don’t ever hear it. Cables included are good length and work for me. Great psu for the price, but I’ve never had any problems with thermal take products
Reviewed in the United States on October 28, 2025 by Bradley Benton

  • Great PSU
Style: Gold (ATX 3.1) Size: 850W Color: White
Just installed and looks and works great.
Reviewed in the United States on November 14, 2025 by Stephen Bader

  • TT PSU for the ATX 3.1
Style: Gold (ATX 3.1) Size: 1000W Color: Black
Thermaltake did it for the 'ATX 3.1'
Reviewed in the United States on November 14, 2025 by AC

  • Muy buena opción
Style: Gold (ATX 3.1) Size: 750W Color: Black
Funcionando correctamente, el tiempo me dirá que tan buena saldrá. Fue la mejor opción para mi equipo, una fuente de poder no muy costosa pero segura, modular y moderna, mi antigua fuente estaba presentando reinicios por la actualización de la tarjeta gráfica y se quedó corta. El único detalle que he notado es un pequeño sonido tipo click al encender y al apagar, nada extravagante. ... show more
Reviewed in the United States on September 25, 2025 by Juan Pablo Gelvez Juan Pablo Gelvez

  • Fuente Gold modular
Style: Gold (ATX 3.1) Size: 750W Color: Black
Muy contento, llegó a tiempo y funcionando en mi nueva pc
Reviewed in the United States on November 3, 2025 by John Zuluaga John Zuluaga

  • it supplies plenty of power
Style: Gold (ATX 3.1) Size: 850W Color: Black
very goose psu. it power my komputer terbaru. i am very hapy after installing this power supplying unit. it supplys power. i like the intelligent fan that has been implemented.
Reviewed in the United States on October 20, 2025 by Sharyn Sharyn

  • EXCELENTE
Style: Gold (ATX 3.1) Size: 750W Color: Black
TODO OK
Reviewed in the United States on November 5, 2025 by Luiggi

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...