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⚡ Power your passion, silence your setup.
The Thermaltake Toughpower GT 850W is a fully modular ATX 3.1 power supply delivering up to 90% efficiency with 80 PLUS Gold certification. It features a native PCIe 5.1 12+4 pin connector supporting the latest GPUs, Smart Zero Fan technology for near-silent operation, and a high-amperage single +12V rail for stable power delivery. Designed for high-end gaming and professional workstations, it comes backed by a 5-year warranty and comprehensive safety protections.








| ASIN | B0DJ6DGHCP |
| Best Sellers Rank | #33 in Computer Power Supplies |
| Brand | Thermaltake |
| Compatible Devices | PC |
| Connector Type | ATX, Molex, PCI Express, SATA |
| Connector Type Used on Cable | ATX, Molex, PCI Express, SATA |
| Cooling Method | Air |
| Customer Reviews | 4.5 out of 5 stars 392 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Form Factor | ATX |
| Item Dimensions | 5.9 x 3.4 x 5.5 inches |
| Manufacturer | Thermaltake |
| Maximum Input Voltage | 240 Volts (AC) |
| Mfr Part Number | PS-TPT-0850FNFAGU-3 |
| Minimum Input Voltage | 100 Volts (AC) |
| Model Name | Toughpoewr GT 850 |
| Model Number | PS-TPT-0850FNFAGU-3 |
| Number of Fans | 1 |
| Output Wattage | 850 Watts |
| Power Supply Design | Full Modular |
| System Bus Connector Type | ATX |
| UPC | 841163097465 |
| Unit Count | 1.0 Count |
| Warranty Description | 5 Year Manufacturer |
| Wattage | 850 watts |
T**C
no issues after year of regular use
one year later - no issues. I can't complain with that. I've played some heavy duty games with UE5 and 2K/4K and running a 9700X Ryzen with a 5070 Ti. Not noisy, no whine, no cutout, not a single problem. So, for those wondering it is a GOOD PSU to get as long as you get enough wattage for your setup. Super easy to work with, can pick just the exact cables I needed and love the white color to match my PC case.
T**N
Very good product
Works very well but I have 1 problem, sleep modes no longer work. Not sure if it is the power supply or the setting corrupted.
M**L
Top 5 pc purchases I’ve made
Needed it because my original one didn’t have the 12pin connector for gpus. Amazing price for a 850w and fully modular. top 5 pc purchases i’ve made so far. cable management is also so much better than before with a non modular psu.
J**N
Great 850w Power Supply Unit Highly Recommend
This is a great power supply handled my Ryzen 5 7500F and RTX 5070 Ti with a ton fans and aio. Also has the 12v-2x6 ATX 3.1 connector for my GPU which is nice as well. No problems at all the smart zero fan mode is also nice so it doesn't come on at low loads when it doesn't need to. Cables are nice as well and the psu is nice and compact so it was easy to install in my case which is the Montech XR. It is much better compared to my older unit I use to have it will also allow me to get stronger upgrades for PC parts in future if you need to.
A**E
Great power supply
Got it for my new build, so far working great! You can’t see it, but you can tell it’s lighting up the computer case!
J**N
Unreliable, pick something else
Unfortunately, I don't have anything good to say about this power supply. Worked fine for about 3 weeks and then suddenly up and died in the middle of a gaming session. No warning, no loose cables/connections, and no possible way that I was hitting the 850 watt power limit. Unit simply turned off, shut off my PC uncommanded, and refused to power back up. At first I was sure something had malfunctioned with my motherboard, but nope; hooked up my old 800 watt Cooler Master PSU that this unit was supposed to replace, and the whole system booted up fine (thank god that was the first thing I tried instead of removing the CMOS battery to reset the BIOS). Looking at the reviews, perhaps what happened with my system was an isolated incident, but even so, I would steer clear of this particular unit from Thermaltake. After all this went down, I tried to find an evaluation of this unit on the LTT Labs site (Linus Tech Tip's hardware testing site), and while they hadn't tested this exact model, they had tested a similar model from Thermaltake and BOTH their test units failed during testing. Cannot recommend this item at all, would give it zero stars if I could.
A**Y
Looks Great Run Great so Far
Nice love the all white in my TT all white build, very quiet does everything I need it to and replaces my older Black 1000w power supply
K**N
Muy buen precio
Llegó muy rápido , exelente empaque , visualmente un exelente producto , peso indicado ,la única falla es el cable de corriente a la gráfica no funcionaba
D**N
Mega Loud and Stress Inducing
Took me 3 months before I realized THIS is the reason my PC sounds like it's taking flight every time I boot up a game. But worst of all, the fan speeds up randomly every 30 seconds while idol instead of staying at a consistent speed. This is a product that no-one should buy.
A**R
Buenisima
Muy bien sobrada para un ultra 7 con rtx 5070 y enfriamiento líquido pero más vale
J**E
Missing AC power cord
Power supply is relatively quiet. My unit did not come with an AC power cord.
S**E
Good
Excellent
M**E
Excelente
Recomendada al 100 No decepciona la marca para nada tenía una fuente de 500w de esta misma marca más de 4 años y sigue funcionando por esta razón me incline por esta marca de fuente de poder. Y la pregunta de si hace ruidos los ventiladores para nada es muy silenciosa
Trustpilot
2 weeks ago
2 weeks ago