Customer Ratings & Reviews

I got this as my 2005 Turbo Cool 850W PSU did not have enough connectors/correct ones to power the new GPU. This is the 3rd PSU that I got from Best Buy and they were very nice about returning the other 2. First one was the Bronze model of this which I got and it was apparently an open box as it was missing 2 runs of the sata cables. I should have known something was off as one end of the plastic wrap was missing but thought that was normal as last time I got a PSU was in 2005. Returned it for the Corsair RM850x as It was listed as $75 on the shelf and one of the employees conformed it BUT at check out it was $150... I vowed to never shop at best buy again... Only reason that I came back was to return the PSU as it didn't work... It apparently is not compatible with my MB. It is ATX 3.1 which after reading up on Corsair did away with the negative 12 volt run and it is now a modulating voltage and left unpinned... So back to BestBuy! Knew that the bronze worked with my system so I looked and found one store with the Gold one and made sure that the box was unopened. So switched it out and now I have a working pc once again!!! This all started as I went from a Geforce 960 to a NVIDIA GeForce RTX 4070 Ti Super on my (apparently 2014) Asus Strix X99 Gaming MB which is apparently impressive as the original psu was from 2005... Which prices are way cheaper as in 2005 the Turbo Cool was around $350 for the 850W. Now looks to be around the $150 price for 850W. SO backstory done. This psu works well and provides enough power to do what is needed and so far their has been no issues with anything. The easy of cable management is way better than 2005! The 8 sata connections is good as I have a dvd drive and 6 hard drives to power!

Works as described, and everything is marked clearly for an easy installation. High quality product for a good price!

Excellent product, superior packaging. Requires knowledge of assembly (wiring/plug choice to motherboard,graphics card,etc prior to install) no directions included wiring may scare most if you've never done it before. If you're unsure on doing your installation I believe Bestbuy may offer assistance through their in-house Geeksquard, you probably just have to drop off your tower. Self installation took about 30 mins, I was back up and running within the hr, will take longer if you have to take somewhere to install, which will cost more and take longer. All depending on their workload/time of drop etc. This isnt something you really want to mess up if youre unsure of yourself or have a technical rig set up that you didnt build yourself. Its not rocket science but you can do it yourself. Work backwards and pay attention to your rig. All plugs and wire assembly is included in packaging.

Great modular power supply got it for my 9800X3D and 2070 and now powers a 5080 qorks very well.

Good product so far, no issues. A good fit for a 9070xt and 7800x3d. Fan is quiet as well.

Good quality all the cables you need no issues so far

Has all the requirements for a 8 pin pcie graphics card and enough great price too

Great power supply 850 watt, upgraded from a 650 watt

This is a sleek and quiet power supply with a good efficiency rating, and word-of-mouth recommends this model over the (slightly) cheaper options on the market at this wattage and rating. The fully-modular design means you only have to deal with the cables you actually need for your build. The only downsides are that it is quite difficult to remove a bus once it is fitted to the PSU and that some cases will require affixing the PSU upside-down for airflow, which could irritate some people.

This power supply unit offers exceptional performance for demanding systems. Its robust design ensures stable power delivery for high-end graphics cards. The efficient components minimize energy waste and reduce operating temperatures. Quiet operation keeps your system running smoothly without distracting noise. This PSU is an excellent choice for powering the latest hardware.

Barely any noise in high temps, works great, no LED though for those that like them.

I recently upgraded my PC with the Thermaltake Toughpower GF A3 850W, and I couldn’t be happier. It delivers stable and efficient power, keeping my system running smoothly even under heavy loads. The fully modular design made installation effortless—no more excess cables cluttering up my case. Plus, the Smart Zero Fan keeps things quiet, which is a big plus for me. I also appreciate its ATX 3.0 and PCIe Gen 5 compatibility, ensuring I’m set for future upgrades. If you’re looking for a reliable, high-quality power supply, this one is a great choice!

PSU was fully modular and easy to install into my existing pc. Definitely worth the money, and haven’t had any problems yet

Got this power supply becasue my old 600w couldnt handle the new setup. The price of this is great and so far gas been reliable and ive had no issues. Its also great that its modular, making cable management a breeze. I would recommend to anyone building a new budget pc as the value for this is unbeatable for the power output.

Had to buy this off of a whim as previous power supply shorted, this one exceeded my expectations, decent price, a silent fan switch, the modular cords are handy, and haven't had any issues after a month of use.

Had bought a different power supply but it wouldn't work with my case. Good thing they had this in stock at my local best but. Fully modular, has the new power connector for Nvidia graphics cards. 850w good rated. Quiet.

Great product. Nice and quiet and stronger than my last one. Thanks to the Geek squad for getting this done in 48 hours and minimizing my down time!

The Thermaltake Toughpower GF A3 850W is an outstanding power supply. It delivers consistent power with the 80 PLUS Gold certification, ensuring efficiency even under heavy loads. The fully modular design makes cable management easy and clean, while the PCIe Gen 5 and ATX 3.0 compatibility future-proofs it for modern setups. It's quiet during operation and stays cool, even when gaming or multitasking. Overall, a solid choice for gamers or anyone building a high-performance rig. Worth every penny for reliability and performance!

Works great for my build easy to install and set up

My 3yr old PSU died (assuming due to surges caused power outages). I picked this one up, installed it, and it's working like a dream. It's also quite a bit quieter than my previous one