CORSAIR RM Series (2021), White, RM850, 850 Watt, 80 Plus Gold Certified, Fully Modular Power Supply
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Availability:
In Stock.
Arrives
Friday, May 30
Color: White
Size: 850 Watt
Style: RM
Features
- Fully modular, so you only connect the cables your system needs.
- Triple EPS12V connectors for full compatibility with modern graphics cards and motherboards.
- A 140mm rifle bearing fan with a specially calculated fan curve ensures that fan noise is kept to a minimum, even at full load.
- Zero RPM fan mode for near-silent operation at low to medium loads.
- Industrial-grade, 105C-rated capacitors deliver solid electrical performance and reliability.
Description
CORSAIR RM Series Fully Modular Ultra-Low Noise Power Supplies deliver consistent 80 PLUS Gold efficient power to your PC. With triple/dual EPS12V cables and four PCIe 8-pin power connectors, RM PSUs have all the connections needed to power today’s most demanding PC upgrades. Industrial-grade, 105°C-rated capacitors deliver superb electrical performance and reliability, backed by a ten-year warranty.
Model Name: RM850
Brand: Corsair
Compatible Devices: Personal Computer
Connector Type: PCI Express
Output Wattage: 850
Form Factor: EPS12V
Wattage: 850 watts
Cooling Method: Air
Item dimensions L x W x H: 6.3 x 5.91 x 3.39 inches
Item Weight: 1.65 Kilograms
Brand: Corsair
Series: RM850
Item model number: CP-9020232-NA
Item Weight: 3.63 pounds
Product Dimensions: 6.3 x 5.91 x 3.39 inches
Item Dimensions LxWxH: 6.3 x 5.91 x 3.39 inches
Color: White
Manufacturer: Corsair
Country of Origin: China
Date First Available: June 22, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, May 30
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Color: White
Size: 750 Watt
Style: RM
The media could not be loaded. Just finished my first PC build and couldn't be happier Build Sheet will also be a review (same review posted on each item for simplicity Case: NZXT H5 Elite The case has a wonderful design that is elegant and sleek the air flow is amazing considering the size. This case comes with X2 140MM RGB DUO NZXT Fans and an RGB Controller, over all 5/5 zero issues. ( This was not purchased on Amazon but as an open box at Best Buy (saved 45 bucks) PSU: Cosair 750w modular Honestly not much to say Cosair makes great products and this fits that bill!! All the wires you could possibly need for a 750w system, definitely has great vaule and looks 5/5 MOBO: GIGABYTE X670E It can be difficult these days to find a white motherboard, but the X670E definitely fits the bill. The board looks great and the built in RGB next to the panel connectors is awesome. This board has 4 NVMe slots Which is great for heavy storage of either games or other files. The GPU Pcie slot is also reinforced to help reduce some of the bigger 40 graphics cards from sagging. Definitely would recommend 5/5 CPU: AMD Ryzen 7700x Overall, a great CPU not really much to say it's a 16 thread 8 core CPU that pairs very well with the 4070 T.I.Super The AM5 design ensures that support for this specific CPU will be around for a while. Some people say the CPU gets hot on under load. I have yet to see any instances of that. 5/5 GPU: Aero OC 4070 Ti Super (16GB) The look and design of this GPU fits my build exactly the way I wanted it to the little R. G. B sign that's on the front of the graphics card. It's a nice touch. This is the OC Addition, which is unlocked from factory to enable overclocking, but with the 16 GB of V.Ram that's on this graphics card with it being the T.I super. overclocking is not required for games Just quite yet, maybe in the future It will but that's what I bought this so I'm semi future proof. 5/5 Ram: T Force RGB DDR5 6000mhz (32GB) Again, sort of like my CPU not really much to say here. The R GB is controllable through the gigabyte control app. Once you set up your p, c, so you could set any custom color and sort of wave pattern that you like. DDR 5 is definitely the way to go nowadays. With the increase speed that you can get on larger sets of Ram. These Ram sticks have a really nice. Metal shell casing on it, which also acts as a heat dissipator which is really great because these chips can get a little hotter at the higher speeds but overall no issues and the RGB looks great 5/5 CPU Cooler: Noctua DH15 Not much to say here.This is the best air cool.Ed around to market the rise in 7700X CPU Runs a little hotter than most other Amd Chipsets but this cooler has zero issues keeping it under control 5/5 Secondary Display: WOWNOVA 5" Computer Display I was entirely impressed with the design look and feel of this 5 inches display .It comes preloaded with presets that you're able to customize to your liking and you can upload your own as well!!. This is a very nice aesthetic touch inside the computer and also allows you to keep track of whatever information you're looking to keep track of as where it comes to the system functions of your pc Storage: Samsung 970 Pro (500GB) (STRICTLY FOR OS) Storage: Samsung 980 Pro (2TB) Game Storage This is pretty self-explanatory and the NVME storage or PC i.e. Gen. 5 storage is some of the best way to store games and run operating systems from .All other storage forms are a thing that have passed.This is going to get you the max performance when it comes to storing or running your OS bought at best buy Fans that came with case: X2 140MM NZXT DUO RGB X1 120MM NZXT Toliet Fan These fans came with the NZXt H5 elite.I've had 0 issues with them.Their great fans That NZXT makes a great product to keep positive airflow Fans Purchased : X4 120 MM NZXT DUO RGB I purchased all 4 of these on Amazon as open boxes as these specific fans are not in stock with NZXT currently, the open box was in very good shape and the fans have been functioning with 0 issues very impressed with the open box item I received this time. The RGB on these fans are absolutely amazing. One thing I will note though is NZXTs RGB controllers only control 3 fans per controller. So for every 3 fans that you have in your case, you will need an additional controller. TOTAL COST $2348 Bench Marks MW3 Max settings Consistent 160 to 180 FPS @1440P SPIDER MAN REMASTERED/ God Of War Ultra/Max Settings Consistent 130 FPS@1440p
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Reviewed in the United States on April 6, 2024 by Matt The Man Matt The Man
Color: White
Size: 750 Watt
Style: RM
Corsair has always been my go-to brand for power supplies due to their consistent reliability, and this RM750e (2023) unit upholds that standard perfectly. Aesthetically, it's a great match for my other components within the NZXT H6 Flow case, and I especially appreciate that the ample cables provided are color-matched to the PSU, contributing to a very clean and cohesive look. The fully modular design made installation straightforward, and it runs cool even when powering my system. This 750W PSU provides stable and sufficient power for my build, which includes an AMD Ryzen 7 7800X3D processor and other modern hardware, without any hitches. Knowing I have a dependable Corsair unit running cool and looking sharp makes it an easy recommendation for anyone building a similar system who values both performance and a tidy, well-coordinated aesthetic. The combination of trusted reliability, modularity, and visual appeal makes it a solid choice.
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Reviewed in the United States on May 19, 2025 by Charles W
Color: White
Size: 850 Watt
Style: RM
This power supply has everything, From high wattage to looks to performance, I couldn't have chosen a better one for my build, it's dead silent and consistent, very high build quality and functionality, It's so durable that even after zapping it a few times accidentally while it was running it still didn't even react, the stability on the fan noise is insanely good aswell, Would Buy again.
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Reviewed in the United States on May 21, 2025 by Lasha Katamadze
Color: White
Size: 750 Watt
Style: RM
Bought this for a PC build based on recommendation from IT friends. Easy to install. Built the computer in Dec. 2024 and it's been running great.
Reviewed in the United States on April 30, 2025 by Ava Olin
Color: White
Size: 750 Watt
Style: RM
Great quality product. Comes with several separate cords allowing for clean build.
Reviewed in the United States on May 6, 2025 by MarkT
Color: White
Size: 850 Watt
Style: RM
Super quiet PSU, it's just one of the components in my PC that I never think about because it just works! CPU: Ryzen 5700X3D GPU: MSI 4070 TI Super 3X Black OC edition MoBo: MSI X570S Plus 6 Corsair fans but they get USB power through a controller. Power has never been an issue even with CPU and GPU slightly overclocked under heavy usage. I have yet to experience a blackout or brownout with my PC on so I can't speak on that.
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Reviewed in the United States on March 29, 2025 by Avid Internet Shopper
Color: White
Size: 850 Watt
Style: RM
Cables are a lot longer than you expect them to be, the fact that it’s modular has its benefits and its downsides, there are no instructions online for this specific type of power supply, but the parts are clearly labeled for ease of installation. Just look at your motherboard carefully and you’ll be fine. Not much else to say besides the fact that it works as intended and doesn’t come with a power cable listed anywhere on the box nor online. I thought I’d lost a cable.
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Reviewed in the United States on April 3, 2025 by Holly V. Diaz
Color: White
Size: 850 Watt
Style: RM
I've had my pc I made for over a year now and it's great! Not loud, super easy to install and fits in my midsize tower no going wrong with it
Reviewed in the United States on April 22, 2025 by Keeb