Customer Ratings & Reviews

Pros: 1. 80 PLUS Gold Efficiency (5/5): The RM850x boasts 80 PLUS Gold certification, which means it operates with high efficiency, reducing energy waste and saving you money on your electricity bill. 2. Fully Modular Design (5/5): The fully modular design allows you to connect only the cables you need, improving cable management and airflow within your PC case. This design is especially beneficial for maintaining a tidy and organized build. 3. Ample Wattage (4/5): With an 850-watt capacity, this PSU provides sufficient power for high-end gaming rigs and systems with demanding components, including multiple GPUs and overclocked CPUs. 4. Quiet Operation (4/5): The RM850x features a quiet and efficient fan that operates silently under light loads, contributing to a peaceful computing environment. 5. 10-Year Warranty (4/5): Corsair's 10-year warranty demonstrates their confidence in the PSU's reliability, offering peace of mind for long-term usage. Cons: 1. Price (3/5): While the RM850x offers great performance and features, it falls on the higher end of the price range for power supplies. Users on a tight budget may need to consider more budget-friendly options. 2. Overkill for Some Builds (3/5): The 850-watt capacity may be overkill for many users, especially those with single-GPU setups. In such cases, a lower-wattage PSU could be a more cost-effective choice. Conclusion: The CORSAIR RM850x 80 PLUS Gold Fully Modular ATX Power Supply is a reliable and efficient choice for powering high-performance desktop PCs. Its 80 PLUS Gold certification ensures efficient power delivery, reducing energy consumption and heat generation. The fully modular design and ample wattage capacity make it suitable for a wide range of builds, from gaming rigs to content creation workstations. Additionally, its quiet operation and extended warranty provide added value to the package. However, the price of the RM850x may be a consideration for budget-conscious users, and it may be overkill for systems with lower power requirements. Users should assess their specific needs and budget before making a decision. In summary, if you're looking for a high-quality and fully modular power supply unit that combines efficiency and reliability, the CORSAIR RM850x is a solid choice. It offers excellent performance and cable management capabilities, making it an excellent addition to a wide range of PC builds.

Had this for almost a month now, no issues. only got this as i got a new graphic card which recommended a minimum of 700W supply. it does come with cable connections you would need to plug and go.

Great PSU. Couple of the prongs in my cables were bent, but it doesn't affect anything. There were sharpie markings on the top of most of the cables, which a Geek Squad member explained is a random quality control test when they pull products off the line. Love the sleeves and the modularity, makes building easier.

I bought this in anticipation of added power needs for nVidia 4000 series GPU. As it turns out, the GPU power cable already sources 2 ports from this PSU so it's perfectly OK to use a "Y" adapter with a single feed from this PSU to the GPU. The modular cables also mean you only connect what you need without the horrible tangle of PSUs that come with a bird's nest of cables hanging off them.

Had all the necessary cables included and was very easy to put into the PC. Makes virtually no noise, which is also nice.

Easy to install and Cable Management is easy with a fully modular PSU. Easy powers my pc with AMD Ryzen 7 5800x and RTX 3060Ti.

1000 watts of pure power! I have an intel core i9-12900k and 3080 and have had no issues with this at all!

The corsair RMx series are the best line of power supppies on the market if you take price into account, long warrenty, dead reliable. Steady power delivery, exceptional build quality. I swear by corsair power supplies in all of my builds.

Does exactly what I needed. No issues and would recommend. This gave me what I needed for power with capacity for more.

Worked well and operated fine! Was quiet, and optimized well. Only returned it because I realized I didn’t need it - but otherwise well worth the money.

Great power supply for higher ends pcs. I have a 3070 and its perfect for each other. Very quiet.

Its a good product, and was easy to install. Modular PSUs are great

Great value for the prize. Super quiet and completely modular. You can't go wrong with Corsair PSUs. Highly recommended!

Easy to install. Powers things well. Great product. Worth the buy.

So far, so good. My pc was hard rebooting for no apparent reason, and instead of just checking to see if it was the power cable or another cable, I instead bought a whole PSU. I seem to have fixed my hard rebooting issue. Only reason this gets 4 stars is because even though this is a fully modular PSU, the cables included are TERRIBLE. There is a point where they physically cannot be bent, so getting the cable to fit around corners is difficult if not impossible. The PCIe cable going into my GPU physically prevents me from installing my glass side panel on because the cable doesn't bend at all. If forces you to buy their "premium" cables and I really don't feel like spending another $70 on some cables. I might just reinstall my PCIe cable from my old PSU.

works great no problems good to go and fully modular

Good modularity with really stable performance. Tossed into a rig with a 10700k, a AIO loop, and a 3070 ti.

Super easy to use and install, very quiet, would recommend.

This PSU got me a far distance. it’s Corsair gold so of course it would. But I upgraded to the absolute powerhouse that is the 4090. Farrwell my dear friend. And may this review win me $400 because that 4090 hurt my wallet and soul but she hurts so good… she…hurts….so….gooooood…..

Works like a charm and easy to setup. Made cable management 100x better.