CORSAIR RM850x ATX 850W Power Supply – Black

Really reliable, good for future proofing. Bought custom cables, but the ones that came with it is also good quality. Barely hear it even under load.

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.

This is the first PSU I ever bought for a PC, and first time installing one in a new case to move my build over from an old. My old PSU was one that came with my pre-built PC which was 500w. It started making some grinding and humming noises for a while and I also upgraded my cooling method for my CPU. I originally had a Thermalake CPU Cooler which I hated because it always got so hot. But I had to upgrade my PSU because my old one was not giving enough power. My RGB Fans and my Liquid Cooler RGB Lights would either dim or turn completely off and sometimes the PSU would get even louder like it was working a lot harder to keep the power flowing which caused a lot of performance issues. I. Love. Everything about this PSU, it's so much quieter, my computer is performing like new again, and all of my lights are staying on with no issue. I took online advice and made sure not to go cheap with this kind of thing because one cheap psu, if it's bad, it can go from cheap to expensive if you know what I mean. Your entire PC can fry which would make every component unsalvagable which means replacing the entire thing! My old PSU has been making the noises at least for over a year, I didn't think anything of it. I kept up with cleaning and maintaining it every 3 to 6 months to make sure dust never accumulated enough to cause issues. I'm still fairly new to this PC building thing but as far as my experience with this PSU so far, it's great, it's quiet, and it made my pc performance so much better. Take the advice like I did, don't go cheap with something like this. You won't regret it. The heart of your pc deserves the best for its lifespan.

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.

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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.

I honestly don't have much to say about the performance other than it seems to work and will most likely fit my needs for a while. However, one thing I noticed was that the packaging is really bad. Before this PSU I had an EVGA G3 550W and it served me well til I wanted to upgrade my GPU. People said that corsair was better than EVGA so I went with them this time. But when I opened the box I saw that the PSU was protected only by cardboard and the cables were in a non-ziploc plastic bag. I spend $130 and you give me THAT? The EVGA packaging was WAY better. It had foam protecting the PSU and actual cloth bags for both the cables and PSU itself. What gives? This has nothing to do with the performance, but it shows how much they care. I don't know if I sound like a karen when I say this, but this lack-luster packaging is enough to drive me right back to EVGA. Also the cable for the CPU was almost too short, in a 4000D, a CORSAIR CASE. I am not about to buy cable extensions for something so trivial. Just make the cables a little bit longer. The cables were more than enough for the EVGA PSU. Overall, it's a fine power supply, but the packaging and cables bother me too much to give this 5 stars.

I was going to buy a 1,000 watt unit, but it would have been completely unnecessary. This replaces an older model of the same brand and wattage that outlived its warranty by several years. After researching reviews, I knew this would be perfect. And probably last another 10 years or so. Flawless installation. I used the provided power cable that came with it instead of reusing the old one because this was rated for a higher temperature. In case I happen to have this near my stove or something. I love the fully modular design. The older power supply had the motherboard cables permanently attached. But it was easier to route the new cables since I could attach them in any order. It is a great feeling to hook everything up, and the computer fires up with no trouble! I'm a big brand fan.

I put this in a brand new build. I like all the cords they give and that it is modular. I didnt need all the cables, so I was able to put them aside for a time when I may need them. No noise, fit well in my tower, and it does everything I would expect from a power supply unit. If it lasts five or more years, I will feel I got my money worth. I have had no problems with it, so as of now, after 6 months of 24/7 use, I am happy and do recommend this product, even though it is pricy.

Excelente fonte, não apresenta defeitos e suporta o computador mesmo quando este consome seus 500W~ sob full load e com picos de tensão. 10 anos de garantia da fábrica, qualidade Corsair/Seasonic. Altamente recomendado, nunca economize na sua fonte.

Arrived faster than expected! everything's working fine so far and the cable management with this is such a breeze since you only use the cable that your pc needs!

Trae bastantes cables y varias salidas. Nunca la he escuchado hacer ruido. Ha soportado varios cortes de energía de la casa y otras variaciones en el voltaje, aunque debo decir que también uso un regulador de voltaje.

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