Thermaltake Toughpower GF A3 850W, True 450W 12VHPWR Connectors on PSU & NVIDIA RTX 40 Series, ATX 3.0/PCI-E 5.0, 80+ Gold, SLI/Crossfire Ready Power Supply, PS-TPD-0850FNFAGU-L, 10 Year Warranty

I recently upgraded to the Thermaltake Toughpower GF A3 850W, and it’s been a perfect fit for my high-performance PC build. This PSU is powerful, efficient, and ready for the latest hardware, including NVIDIA RTX 40 Series GPUs.Performance:With 850W of power, this PSU easily handles my demanding components, including a power-hungry RTX 4090. The true 450W 12VHPWR connector is a game-changer for modern GPUs, ensuring stable power delivery without the need for extra adapters. It’s fully compliant with ATX 3.0 and PCIe 5.0, making it future-proof for upcoming builds.Efficiency & Reliability:The 80+ Gold certification gives me confidence in its efficiency, keeping power consumption and heat low. Even during heavy gaming or rendering sessions, the PSU stays cool and quiet, thanks to its optimized fan design. The 10-year warranty speaks volumes about its reliability and build quality.Compatibility:This PSU is SLI/Crossfire ready, making it a great choice for multi-GPU setups or anyone running a high-performance rig. It’s compatible with a wide range of motherboards and CPUs, so installation was seamless.Build Quality:The unit feels solid, with premium materials and well-designed cables. The modular design keeps my case tidy with minimal clutter, and the cables are durable yet flexible for easy routing.Final Thoughts:The Thermaltake Toughpower GF A3 850W is a powerhouse that delivers reliable performance, future-ready features, and exceptional efficiency. Whether you’re building a new high-end system or upgrading an existing one, this PSU is an excellent investment. Highly recommend!

I used to be a big Seasonic fan for power supplies but they've gone way up in price and I've had a few fail just after their 5 year warranty.Based on bench testing and tear down reviews these Toughpower supplies seem to be a less expensive and perhaps an even better option than Seasonic let alone all the sketchy gaming brands.I've had zero issues with several of them, they're super quiet (and let you even turn the fan off entirely if you want), modular, and come with the all the right cables and connectors. They have a 5 year warranty and test out to be among the most efficient at light loads. They also have true power factor correction making them even cheaper to run and more UPS friendly.My oldest one is perhaps 3 years old but it's been on 7x24 with zero issues so far. They use high quality Japanese capacitors where it matters and that's usually the first thing to fail in power supplies so hopefully these will be long lived.Also, just to break a myth, few need a power supply over 650 watts even for most gaming systems. Yeah, if you have a RTX 4090 and an overlocked i9 14900K you might need an 850+ watt supply but few of us have such expensive hardware. And buying a bigger supply than you need just wastes energy at light loads. A 550 watt supply is much more efficient at 50 or 100 watts than a 850 watt supply at the same load. So bigger isn't better if you don't need the extra capacity. An RTX 4070 needs just 200 watts and most CPUs need even less. I have a small form factor gaming system with an RTX 4070 that's happily running 100% stable on a small SFX 450 watt supply when most gamers claim you need a much bigger power supply.

This is an excellent power supply, but I want to explain the problem I had with it in case you run into this. I bought this to run my PC along with a high-end video card, the AMD Radeon RX 7900XTX, which draws quite a bit of current off of 6 + 1 connectors. This power supply does have the three connectors, and they are dual ended, meaning one could do the purpose of two. Because of the high power drop, I used the three connectors separately, but for the last year I would have random issues with my video card going offline because it wasn't getting enough power.This was not a problem with the power supply in the long run, but the supply three connectors. I purchased three new ones for $10 each, and now it works beautifully. I don't know if the connectors were bad, but we're not making proper connection, but I would have to wiggle them occasionally on the video card to get it to work again.That being said, the power supply is awesome, and you may never run into this problem, but if you do there's the solution. I would definitely recommend this.