Corsair RM850X 850-Watt ATX Modular Power Supply
- Fully modular design make PC builds and upgrades easy, as you need to only connect the cables that your system requires
- 850-watt power supply works well for gaming heads who want a reliable and consistent power flow
- ATX form factor permits simultaneous power supply to all the motherboard components while ensuring durable performance
- 135mm magnetic levitation bearing fan and custom engineered rotors offer increased performance, low noise, and greater reliability
- Resonant LLC topology with DC-to-DC conversion ensures clean and consistent power while lessening coil whine for hush operation, and also facilitates use of more energy efficient sleep states
- Reliable 105 degrees Celsius rated, 100% industrial-grade Japanese capacitors produce constant power supply
- Assists Modern Standby sleep mode for superfast wake-from-sleep times and improved load efficiency
- Zero RPM fan mode provides virtually silent operation at low to medium loads
- Two RMx Series EPS12V connectors permit new graphic cards and motherboards
- 80 PLUS Gold certified efficiency makes it low on power consumption and noise while offering cooler temperatures
- RMX (2021) Series ATX Power Supply
- Mounting Screws
- AC Power Cord
- DC Modular Cable Set
- Cable Ties
- Product Manual
There is no manufacturer content to show for this product. Explore the Details & Specs and Customer Reviews sections to learn more.
Of the 130 reviewers who responded, 116 would recommend this product.
Averages based on how reviewers feel this product performs.
- Bad choice for 3080/3090/miners– 2PCIe cables.- June 15, 2021
Was going to give it a 3 or so but honestly I can’t even manage that. This series is so unbelievable to me. Many downgrades from the previous rm850 and it is at this point 20 or so dollars more. Returning mine and waiting for the old 850 to ship. Main complaint is noise and a very strange cable layout. Be careful as other reviews have pointed out. They are now shipping with 2!! PCIe daisy chained connectors vs the 4 that they originally shipped with. Although there are 5 8 pin connectors on the PSU you have to bug Corsair support if you want to run a 3x 8pin card with dedicated cables. Strangely they ship with 3 EPS/ATX 12v cables that I can’t come up with any reasonable use case for.No, I would not recommend this to a friend.
- Had to buy this for my 3080ti- July 24, 2021
This was an unexpected purchase. Everyone said a 750W P/S was enough for a 3080ti but that would depend on your overall system config, as well as whether you're OCing or not. When I bought my 3080ti, it tripped the OC protection on my old P/S, and had to upgrade to this one. The biggest downside is that the 2020 model only comes with two PCI-E cables (vs. the 2018 model with three), despite what the packaging and modular ports say. If you buy a GPU that needs three PCI-E connectors and you don't wish to use the pigtails, you'll have to buy more cables from Corsair.Yes, I would recommend this to a friend.
- It's a corsair PSU- July 11, 2021
A good PSU from a company known for making good PSUs. My one-and-only complaint is the included cables are the typical fish-net one-size-fits-all kind. I've got power connectors coming off my GPU I'm not using and the the 24-pin took a little more bending than I would've liked to keep pressure on the motherboard down. I would've liked to either paid less for just the unit and got cables separate, or paid a little more and got their black custom cables included instead. But by no means is it a deal-breaker, the included cables work.Yes, I would recommend this to a friend.