Corsair RM850x (2024)

Perfect this time. Building two pc's and this is running 7800x3d, rx7800xt, 32gb ram, msi tomahawk x870. No issues power stays under 50% threshold unless gaming but never good above ~65% Only issue is I ordered two, first one that was white was used and didn't not have the adjustable fan. But the black one came sealed everything in bags

Kathryne · 2026-05-09 · via amazon

I recently purchased the Corsair RM850x (2021) Fully Modular ATX Power Supply, and I must say, I am extremely impressed with its performance and features. Corsair has always been known for delivering high-quality power supplies, and the RM850x is no exception. Here's my review of this remarkable power supply. First and foremost, the efficiency of the RM850x is outstanding. With its 80 PLUS Gold certification, it delivers excellent power efficiency, ensuring that my system consumes less energy and runs cooler. This not only helps in reducing electricity bills but also contributes to the overall longevity and reliability of my system. The fully modular design of the RM850x is a game-changer. It allows for easy cable management, as I can connect only the cables I need and keep the rest neatly stored away. This not only enhances the aesthetics of my build but also improves airflow within the case. The modular design also makes installation a breeze, as I can effortlessly connect the required cables without any clutter or hassle. One of the standout features of this power supply is its low-noise fan. The fan operates silently under regular loads, and I barely notice its presence. It only kicks in when the system is under heavy load, and even then, the noise levels are impressively low. The Zero RPM fan mode is particularly noteworthy, as it ensures complete silence during idle or low-power usage scenarios. This is a great feature for those who prefer a quiet computing experience. The build quality of the RM850x is top-notch. The unit feels solid and durable, and the black finish gives it a sleek and premium look. The cables provided are of high quality and have a premium feel as well. The power supply comes with all the necessary protections, including over-voltage, under-voltage, over-power, over-temperature, and short-circuit protection, ensuring the safety of my components. In terms of power delivery, the RM850x handles my system with ease. It provides ample power for my high-end components, including a demanding CPU and a high-performance graphics card. The voltage regulation is excellent, and I have not encountered any stability issues or power-related problems since installing this power supply. One minor drawback of the RM850x is its size. It's a bit larger than some other power supplies on the market, so it might not fit into smaller PC cases. However, in most standard ATX cases, this should not be an issue. Overall, the Corsair RM850x (2021) Fully Modular ATX Power Supply is an exceptional product that delivers on all fronts. Its efficiency, modular design, low-noise fan, and solid build quality make it a reliable choice for any PC enthusiast or gamer. With its impressive performance and thoughtful features, the RM850x is definitely worth the investment for those looking for a high-quality power supply to power their systems. I highly recommend the Corsair RM850x to anyone in need of a powerful, efficient, and silent power supply for their PC build. Corsair has once again raised the bar with this outstanding product.

Tanner Henry · 2023-07-14 · via amazon

Good. It's working.

Daniel Cardenas · 2026-05-04 · via amazon

First and foremost, this power supply delivers rock-solid and stable power to my system. With an 80 PLUS Gold certification, it's highly efficient and ensures that my components receive clean and consistent power. Whether I'm gaming, video editing, or running demanding applications, I've never experienced any issues with power delivery. One of the standout features of the RM850x is its low-noise fan. Even under heavy loads, the fan remains incredibly quiet, ensuring a peaceful computing experience. I no longer have to worry about my power supply adding to the noise levels in my workspace. It offers efficient power delivery, exceptional cable management options, and silent operation, thanks to the low-noise fan and zero RPM fan mode. Whether you're a gamer, content creator, or PC enthusiast, this power supply won't disappoint. It's become an integral part of my system, and I can wholeheartedly recommend it to anyone seeking a power supply that combines performance, silence, and quality in one package. Corsair has once again delivered a product that exceeds expectations.

Fabio Maia · 2023-09-22 · via amazon

I originally bought this for a browsing only PC and it worked perfectly. Modular connections and the wires that came with were perfect. I had to buy an extension to get to the Motherboard which was on the opposite side! Wish they included that. But it was just few $. Unit itself worked from get go. The fan noise was barely present! If you have nice ventilation, especially you have bottom clearance for air circulation, you shouldnt see the fan spinning much. Lets talk about support. I switched this unit for 1200W (same brand) as I had to upgrade my graphics card and add few HDD. Kept it in its box and after 6 months, when I put it to a new MB/ATX, it wont power up!! Go figure! Probably a faulty unit? Contacted Corsair via phone/email and after few initial hiccups (once their Tech Support got involved) they asked for few pictures, videos and RMA was triggered! Shipped the unit with their label and my new one is enroute! After googling I found out their 2021 model had some such failures for other people. I would still recommend this model, but get the latest one. Whats better than the best PSU, you ask? - Best Customer Support & RMA process. Anyone can say 50 years guarantee, but to stand behind that and replace as promised, thats the brand you should buy.

BV · 2023-05-08 · via amazon

Best Buy

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