Customer Ratings & Reviews

It is a great product and was easy to understand. The wires that came with it was all the wires that you should need to connect it straight from out of the box.

Super Quiet. Great performance paired with my Intel ultra 7 and RTX 5070 ti. Cables are great and look very good. Easy to install

I upgraded to this from a 650W PSU as I needed a bit more power for my 5070 Ti. I was worried it might be noisy, but I haven't heard a peep out of it since installing it. I'm not sure the fan has even come on once. It's pretty compact so there should be no issue fitting it in most builds. The cables are a nice change of pace. They're not quite braided, but they're not the usual rubber cables you see with other units. It's also nice they include a comb to keep them neat. Happy with my purchase!

Great power unit. Modular system makes it clean and the 12v high power cable plugs right into all of the modern GPUs. Fan is quiet!

Excellent power supply! The CORSAIR RM850e delivers stable, efficient performance with whisper-quiet operation. Fully modular design makes cable management a breeze, and the build quality feels premium. Perfect for high-end builds, highly recommended.

My RM750 went out after like 8 years and I needed a little more power anyway so I went with the RM850x. It has plenty of ports for everything. It also has the newer upgraded cables which make install a little easier because the cables bend around corners better. So far, it works like a champ. Plenty of power for all of my gaming needs.

Love the color, it’s quite and the cables are good plus it hasn’t exploded yet so it’s 100% better then a gigabyte supply

Works as intended, very quiet. Haven't had any issues yet. The modularity is nice.

Amazing power supply, easy to setup and is low noise

The CORSAIR RM850e PSU is a fantastic choice for any high-end build, especially those focusing on white aesthetics. Its 80 PLUS Gold rating ensures superb efficiency, while the fully modular design keeps cable management clean. Crucially, it supports ATX 3.1 and PCIe 5.1, providing essential future-proofing for next-gen GPUs. The low-noise fan makes it virtually silent under normal load.

I’ve purchased multiple variations of this product over time, and the experience has been consistently excellent. Build quality is solid, performance is reliable, and it does exactly what it’s supposed to do without surprises. Installation is straightforward, fit and finish are clean, and it performs well under sustained use. What ultimately keeps me buying this is consistency. Across different models and configurations, the quality has remained dependable, which matters more than flashy features. When I need something I can trust, this is the brand I reach for, and it hasn’t let me down yet. I wouldn’t hesitate to purchase this again, and I routinely recommend it to others who want reliable hardware without headaches.

My old power supply took a dump. replaced with this one. very quiet . simple to set up

fully modular easy to set up and super quiet. works perfectly for any build.

This has been working greatly in my PC. Definitely a lot more quiet than my previous part. I'm glad I replaced it!

great power supply that was easy to install, had no issues at all :)

I had to purchase this to put in to my pc to run the 5070ti in my pc and it worked wonders. High quality cords and easy to use plug ins.

Great power supply for my latest pc build. Its nice and quiet. The modular connections are amazing, only using the ones I need. Not much not to like about this quality product.

My 2nd RM series PSU in a month, on 2 different PC's. This was a preemptive purchase replacing a CX with a C+ on the SPL rating. This one is in the B range. Very quiet. The cables are amazing. Only con is that to have 3 PCIE connections, you have to use the dreaded 12V connection to split out into 2 standard PCIE connections, plus 1 of the type 4 units.

Works amazing just as intended, made my pc run a lot better and allowed me to put a better gpu in since my old psu didn’t have enough watts

it being modular makes a big difference, the wires are nice and it comes with one of the new cables that you can plug directly into your GPU instead of plugging three cables in into an adapter