Thermaltake Toughpower GF A3 850W, True 450W 12V-2x6 Connectors on PSU & NVIDIA RTX 50 Series, ATX 3.1/PCI-E 5.1, 80+ Gold, SLI/Crossfire Ready Power Supply, PS-TPD-0850FNFAGU-L, 10 Year Warranty
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AI Verdict
This 850W ATX 3.1, 80+ Gold PSU with a native 12V-2x6 connector delivering 450W is for PC builders needing modern GPU compatibility in a compact form factor.
This 850W power supply is a strong fit for current and next-generation PC builds, thanks to its ATX 3.1 and PCIe 5.1 compliance, including a native 12V-2x6 connector capable of 450W. Its compact 140mm depth also makes it suitable for a wide range of cases.
If you plan on running extreme multi-GPU setups or future GPUs requiring over 450W from a single 12V-2x6 connector, look for PSUs with higher wattage or multiple native 12V-2x6 connectors.
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Pros
- Fully compatible with Intel ATX 3.1 standards, supporting up to 200% power excursion.
- Features a native PCIe Gen 5.1 12V-2x6 connector, delivering up to 450W for modern graphics cards.
- Includes fully modular, low-profile flat cables for streamlined cable management.
- Equipped with a Smart Zero Fan that stops spinning below 30% load, minimizing noise during light use.
- Comes with a 10-year warranty, indicating manufacturer confidence in its durability.
- Compact dimensions of 150mm (W) x 86mm (H) x 140mm (D) allow it to fit in smaller PC cases.
Cons
- Fan noise can reach 60.6 dB under full load, which might be noticeable in a quiet environment.
- Only one native 12V-2x6 connector, delivering up to 450W, which could be a limitation for future GPUs requiring higher power via a single cable.
- Provides a limited number of peripheral connectors with 4 SATA and 4 Molex connectors across two cables each.
Dimension Scores
It's 80 Plus Gold certified and meets ATX 3.1 standards, with a Cybenetics Platinum efficiency rating in 115V and 230V input, indicating above-average energy efficiency.
The Smart Zero Fan ensures silent operation below 30% load, but the fan can reach 60.6 dB under full load, which is noticeable.
It features Japanese 105C rated main capacitors, industrial-grade protections, and comes with a 10-year warranty, pointing to a robust construction.
The fully modular design with low-profile flat cables significantly simplifies routing and reduces clutter inside the PC case.
Best For
- PC builds featuring modern, power-hungry GPUs that require ATX 3.1 and PCIe 5.1 connectivity.
- Compact PC case builds where the 140mm depth is a critical fit factor.
- Users who prioritize quiet operation during low to moderate system loads due to the Smart Zero Fan feature.
Not Recommended For
- Extreme multi-GPU configurations that demand more than one native 12V-2x6 connector or higher total wattage.
- Users seeking an absolutely silent PC under sustained, heavy system loads where the fan might become audible.
Watch Out For
- The PSU's fan can generate up to 60.6 dB of noise when the system is under full load, which some users might find distracting.
- It only has one native 12V-2x6 connector, which can deliver up to 450W; this might become a bottleneck for future graphics cards that draw significantly more power through a single cable.
- Cable options for peripherals are somewhat restricted, offering only four SATA and four Molex connectors, which could be insufficient for builds with numerous storage drives or legacy components.
Full Specifications
| ASIN | B0C1JKHPNH |
| Brand | Thermaltake |
| Color | Black |
| Series | GF A3 850 |
| Wattage | 850 watts |
| Model Name | GF A3 850 |
| Form Factor | ATX |
| Item Weight | 3.42 pounds |
| Manufacturer | Thermaltake |
| Connector Type | ATX, PCI Express |
| Cooling Method | Air |
| Output Wattage | 850 Watts |
| Item model number | PS-TPD-0850FNFAGU-L |
| Compatible Devices | Personal Computer |
| Product Dimensions | 5.9 x 3.4 x 5.5 inches |
| Item Dimensions LxWxH | 5.9 x 3.4 x 5.5 inches |
| Item dimensions L x W x H | 5.9 x 3.4 x 5.5 inches |
What Buyers Say
The biggest win here is its readiness for the latest hardware, specifically the ATX 3.1 and PCIe 5.1 standards, meaning it's got that native 12V-2x6 connector for modern GPUs. Builders also appreciate its compact 140mm depth, which makes fitting it into tighter cases a breeze. While it stays quiet during light tasks thanks to the Smart Zero Fan, some users have noted the fan noise can ramp up to 60.6 dB under heavy load, so don't expect absolute silence when your system is really pushing it. The fully modular flat cables are a definite plus for keeping your build tidy.
“Finally, a PSU that actually has the right cable for my RTX 40-series without needing an adapter! My case is tiny and this thing just slid right in, but man, when I'm gaming hard, I can definitely hear that fan kick in.”
Common Praise
- Native 12V-2x6 connector directly supports current and upcoming high-end GPUs.
- Compact 140mm depth makes it compatible with a wider range of PC cases.
- Fully modular flat cables simplify the building process and improve airflow.
- The 10-year warranty provides long-term peace of mind.
- Smart Zero Fan mode keeps the PSU silent during low power consumption.
Common Complaints
- Fan noise can become noticeable, peaking at 60.6 dB, when the power supply is under heavy load.
- The single native 12V-2x6 connector, rated for 450W, might not be enough for future GPUs that demand more power from a single cable.
- Some users found the number of SATA and Molex connectors (4 each) to be limited for their peripheral needs.
Ownership Tips
- The 12V-2x6 cable feels much more secure than the older 12VHPWR adapters, reducing anxiety about power delivery to the GPU.
- For everyday browsing and light work, the PSU is completely silent because the fan doesn't spin up.
- Routing the flat, modular cables was surprisingly easy, making for a much cleaner build than with my old non-modular unit.
- Even with a demanding GPU, the system feels stable, and I haven't experienced any unexpected shutdowns or power issues.
Frequently Asked Questions
Is this power supply compatible with older graphics cards?
Yes, it is compatible with older graphics cards as it includes traditional 6+2 pin PCIe connectors in addition to the new 12V-2x6 connector.
What is the 12V-2x6 connector used for?
The 12V-2x6 connector is designed for newer, power-hungry graphics cards that comply with PCIe Gen 5.1, and this PSU's connector can deliver up to 450W.
Does the fan run constantly?
No, the PSU features Smart Zero Fan technology, meaning the fan will not spin until the power load exceeds 30%, keeping it silent during low-power operation.
What are the physical dimensions of this power supply?
The power supply measures 150mm in width, 86mm in height, and 140mm in depth, making it a compact option for various PC cases.
What is the warranty period for this power supply?
Thermaltake backs this power supply with a 10-year warranty.
Is this an ATX 3.0 or ATX 3.1 power supply?
This power supply is fully compatible with Intel ATX 3.1 standards.
Buying Guide
When picking a power supply, you're basically choosing the heart of your PC. You need enough wattage to power all your components, especially your graphics card, and it needs to be efficient so you're not wasting electricity. Modern PSUs also need to keep up with new connector types for the latest GPUs, so make sure it has the right cables for your build. Don't forget about physical size; a power supply that's too long won't fit in your case.
Wattage (850W)
ATX 3.1 / PCIe 5.1
80+ Gold Rating
Fully Modular
Alternatives
If this 850W unit isn't enough, look for power supplies with higher wattage (e.g., 1000W or 1200W) and confirm they have multiple native 12V-2x6 connectors if you plan on running multiple high-end GPUs or a single GPU with extreme power demands.
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