Corsair 850W RM Series RM850 V2 PSU, Rifle Bearing Fan, Fully Modular, 80+ Gold, White UK Plug
With triple EPS12V cables and four PCIe 8-pin power connectors, RM PSUs have all the connections needed to power today's most demanding PC upgrades. Wake your computer faster and consume less power with support for the Modern Standby sleep mode. Zero RPM fan mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you connect only the cables your system requires. RM PSUs are quiet, efficient, and dependable to power your high-performance PC for years to come.
With triple EPS12V cables and four PCIe 8-pin power connectors, RM PSUs have all the connections needed to power today's most demanding PC upgrades. Wake your computer faster and consume less power with support for the Modern Standby sleep mode. Zero RPM fan mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you connect only the cables your system requires. RM PSUs are quiet, efficient, and dependable to power your high-performance PC for years to come.
With triple EPS12V cables and four PCIe 8-pin power connectors, RM PSUs have all the connections needed to power today's most demanding PC upgrades. Wake your computer faster and consume less power with support for the Modern Standby sleep mode. Zero RPM fan mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you connect only the cables your system requires. RM PSUs are quiet, efficient, and dependable to power your high-performance PC for years to come.
With triple EPS12V cables and four PCIe 8-pin power connectors, RM PSUs have all the connections needed to power today's most demanding PC upgrades. Wake your computer faster and consume less power with support for the Modern Standby sleep mode. Zero RPM fan mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you connect only the cables your system requires. RM PSUs are quiet, efficient, and dependable to power your high-performance PC for years to come.
in 7 offers
The lowest price for Corsair 850W RM Series RM850 V2 PSU, Rifle Bearing Fan, Fully Modular, 80+ Gold, White UK Plug right now is $150.00 at Technology Centre, compared across 7 retailers.
The all-time low was $129.00 on 1 June 2026 — today's price is 16% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 3 Nov 2026.
Last updated at 03/11/2026 17:37:23
Corsair 850W RM 80+ Gold Fully Modular 140MM Fan Atx Power Supply, Psu, 10 Years Warranty - White
Corsair 850W RM850e Cybenetics Gold Fully Modular ATX 3.1 Power Supply - White (CP-9020293-AU)
Wholesale CORSAIR RM850 White,1 Box
Delivery $38.68
Corsair 850W RM850 80+ Gold Fully Modular ATX Power Supply - White (CP-9020232-AU)
Corsair 850W RM850 80+ Gold Fully Modular ATX Power Supply - White (CP-9020232-AU)
Corsair CORSAIR RM Series (2021), White, RM850, 850 Watt, 80 Plus Gold Certified, Fully Modular Power Supply (Renewed)
Free delivery between 11–17 Nov
Power Supplies Corsair 850W 2021 RM 80+ Gold Fully Modular 140mm FAN, 12PIN GPU, ATX Power Supply, PSU, 10 Years Warranty - White - AMT Electronics
Delivery $22
originally posted on newegg.com
The CORSAIR power supplies Ive used on past builds have been reliable and stable. The 135 mm fan is quiet when running, with the zero RPM mode my preferred default setting. It does not switch on until heavier loads. The 12V handles over 70A (850W), which should be more than enough for my foreseeable gaming builds. In my use in the past couple of weeks it is very stable and quiet. Corsair offers a ten-year warranty, clearly indicating they are confident in the component (e.g. capacitor) quality and will stand behind the product. I expect to be using it for many years.
originally posted on newegg.com
Nobody ever mentions cable lengths anymore so I included them here. It comes with a 5 foot long 16 AWG power cable. There are 4 sata power cables, providing 14 sata power connectors total. Two of these cables are 34 inches long and have 4 connectors on them. The other two cables are 30 inches long and have 3 connectors on them. The 24 pin ATX power cable is 25 inches long and is the only cable with sleeving. There is a single 31 inch long molex power cable providing 4 molex power connectors. There are 3x EPS/ATX 8 pin 4+4pin CPU power connector cables that are 27 inches long. There are 2x PCI Express Power Cables 8 Pin (6+2) Each cable has two connectors and are 30 inches long capable of supporting 4x GPU connections total. It also comes with 10 zipties and 4 screws ... MoreNobody ever mentions cable lengths anymore so I included them here. It comes with a 5 foot long 16 AWG power cable. There are 4 sata power cables, providing 14 sata power connectors total. Two of these cables are 34 inches long and have 4 connectors on them. The other two cables are 30 inches long and have 3 connectors on them. The 24 pin ATX power cable is 25 inches long and is the only cable with sleeving. There is a single 31 inch long molex power cable providing 4 molex power connectors. There are 3x EPS/ATX 8 pin 4+4pin CPU power connector cables that are 27 inches long. There are 2x PCI Express Power Cables 8 Pin (6+2) Each cable has two connectors and are 30 inches long capable of supporting 4x GPU connections total. It also comes with 10 zipties and 4 screws for mounting.
originally posted on bestbuy.com
Recently I started making some upgrades to a PC I built a few years ago and I obviously had to start with a new power supply to make sure the rest of the new hardware would run smoothly once I had it installed.This Corsair RM850 has met all of my expectations and has run super quiet, which was really important to me.It installed really easily, and having things labeled made getting my entire system connected and back up and running a really smooth and quick process.If you're in the market for a reliable power source that won't break the bank, I would definitely recommend this one.
| Brand | CORSAIR |
| Form Factor | ATX, EPS |
| Modular | Yes |
| 80 PLUS Rating | 80 PLUS Gold |
| Power Output | 850 watts |
Corsair 850W RM 80+ Gold Fully Modular 140MM Fan Atx Power Supply, Psu, 10 Years Warranty - White
Corsair 850W RM850e Cybenetics Gold Fully Modular ATX 3.1 Power Supply - White (CP-9020293-AU)
Wholesale CORSAIR RM850 White,1 Box
Delivery $38.68
Corsair 850W RM850 80+ Gold Fully Modular ATX Power Supply - White (CP-9020232-AU)
Corsair 850W RM850 80+ Gold Fully Modular ATX Power Supply - White (CP-9020232-AU)
The CORSAIR power supplies Ive used on past builds have been reliable and stable. The 135 mm fan is quiet when running, with the zero RPM mode my preferred default setting. It does not switch on until heavier loads. The 12V handles over 70A (850W), which should be more than enough for my foreseeable gaming builds. In my use in the past couple of weeks it is very stable and quiet. Corsair offers a ten-year warranty, clearly indicating they are confident in the component (e.g. capacitor) quality and will stand behind the product. I expect to be using it for many years.
Nobody ever mentions cable lengths anymore so I included them here. It comes with a 5 foot long 16 AWG power cable. There are 4 sata power cables, providing 14 sata power connectors total. Two of these cables are 34 inches long and have 4 connectors on them. The other two cables are 30 inches long and have 3 connectors on them. The 24 pin ATX power cable is 25 inches long and is the only cable with sleeving. There is a single 31 inch long molex power cable providing 4 molex power connectors. There are 3x EPS/ATX 8 pin 4+4pin CPU power connector cables that are 27 inches long. There are 2x PCI Express Power Cables 8 Pin (6+2) Each cable has two connectors and are 30 inches long capable of supporting 4x GPU connections total. It also comes with 10 zipties and 4 screws ... MoreNobody ever mentions cable lengths anymore so I included them here. It comes with a 5 foot long 16 AWG power cable. There are 4 sata power cables, providing 14 sata power connectors total. Two of these cables are 34 inches long and have 4 connectors on them. The other two cables are 30 inches long and have 3 connectors on them. The 24 pin ATX power cable is 25 inches long and is the only cable with sleeving. There is a single 31 inch long molex power cable providing 4 molex power connectors. There are 3x EPS/ATX 8 pin 4+4pin CPU power connector cables that are 27 inches long. There are 2x PCI Express Power Cables 8 Pin (6+2) Each cable has two connectors and are 30 inches long capable of supporting 4x GPU connections total. It also comes with 10 zipties and 4 screws for mounting.
Recently I started making some upgrades to a PC I built a few years ago and I obviously had to start with a new power supply to make sure the rest of the new hardware would run smoothly once I had it installed.This Corsair RM850 has met all of my expectations and has run super quiet, which was really important to me.It installed really easily, and having things labeled made getting my entire system connected and back up and running a really smooth and quick process.If you're in the market for a reliable power source that won't break the bank, I would definitely recommend this one.
Very good and quiet power supply. Has no problems powering everything including a 3080, i5-12600k and lots of RGB.If I was to pick one thing I would have liked, it would be more stylish power cables. The PCI cables all have additional cables so you can run multiple items of one power cable but for the graphics I don't need this and would rather not have to tuck them out of the way.The fully modular design is great allowing you to only put the cables you actually need so keeps everything a little bit cleaner.
Corsair was originally incorporated in 1994 selling high quality memory. Since then they have branched out in to peripherals, PC cooling, solid state drives and power supplies. The power supply is often overlooked by many PC builders, perhaps because its not as sexy as the GPU or CPU! I admit that I was indeed one of those PC builders, until I used a series of cheap powers supplies in the late 1990s, one of which killed a motherboard and the other started a small fire!!! Since then, I pay a great deal of attention, and budget accordingly in order to find and use a better quality of power supply. I used a number of Power PC and Cooling power supplies until OCZ purchased them in 2007. After this I started using Coolermaster Power Supplies and more recently Corsair. I ... MoreCorsair was originally incorporated in 1994 selling high quality memory. Since then they have branched out in to peripherals, PC cooling, solid state drives and power supplies. The power supply is often overlooked by many PC builders, perhaps because its not as sexy as the GPU or CPU! I admit that I was indeed one of those PC builders, until I used a series of cheap powers supplies in the late 1990s, one of which killed a motherboard and the other started a small fire!!! Since then, I pay a great deal of attention, and budget accordingly in order to find and use a better quality of power supply. I used a number of Power PC and Cooling power supplies until OCZ purchased them in 2007. After this I started using Coolermaster Power Supplies and more recently Corsair. I have a 1000W Coolermaster V in my main rig and Corsair CV 450 and 550W PSUs in my work PCs. A few years ago, a 1000W power supply might have made sense, especially if like me you were running power hungry Nvidia GTX980Ti in SLI and an Intel i7-8700K. These days its not hard to find CPUs that have a TDP of 65W and more powerful GPUs like the 6700XT that draws a maximum of 230W. So is a 1000W power supply overkill? Yes it is, so I was extremely happy when Newegg asked me if I wanted to test the Corsair RM 850W power supply, which is a fully modular gold certified power supply. My test PC has an AMD 5600X, Asus X570 motherboard, 2x16gb of PC 3800 DDR, 2TB NVME M2 drive and 3 older HHDs that I use for backup and media streaming. AMD recommends a 650W power supply for the 6700XT, so perhaps the 850W Corsair is still overkill, however it gives me a little wiggle room for next generation components. Extensive testing of a power supply can be extremely complex for a PC builder as we dont have access to expensive equipment like power analyzers, oscilloscopes and spectrum analyzers. I can still perform basic stability tests using software to load the cpu and GPU, like Battlefield V with ultra graphics settings at 2560x1440, Cinebench R23, HWinfo, Kill A Watt (to measure power draw from the wall socket), IR thermometer to measure temperature of the power supply under load and a power supply tester to check rail stability. This power supply has a single 12v rail capable of providing up to 850W and 150W split between the 3.3V rail and the 5V rail! By my calculation, this power supply can deliver a max power of 1000W. The power supply is smaller in size than the Coolermaster V1000W, fully modular and comes with a huge assortment of cables, most of which will not be needed; still they are good quality, if a little stiff. The power supply has a 135mm rifle bearing fan that does not spin at low and medium loads and I never heard the power supply even at full load over the sound of my case fans. My PC is watercooled, so pretty quiet at the best of times. The power supply comes with a huge 10 year warranty, which is a plus as far as I am concerned. Its always great to see companies like Corsair standing behind their products. Testing I loaded up BFV Campaign Mode and HWInfo and logged all metrics during the 2 hour gaming session. These were recorded, along with the Kill A Watt wall socket readings and temperature. I played a further hour of Control, to retest all parameters and finally ran 30 mins of Cinebench R23. Results At idle Kill A Watt reported a power draw from the socket of between 90-98W, BFV pulled 319-326W with 80% cpu utilization and 80% gpu utilization. Control pulled between 345-354W from the wall with 98% gpu utilization and 28% cpu utilization and Cinebench R23 milticore pulled 145-148W from the wall with 100% cpu utilization. The PC was 100% stable, no restarts or stutters. Temperature at the PSU never exceeded 35C during my testing and was inaudible. According to HWINFO 12V rail deviated more than I would have liked at 1.6%. 5V rail varied from 4.94V to 4.98V or 0.81% 12V rail varied from 11.98 to 12.172V or 1.6% 3.3V rail varied from 3.264 to 3.280V or 0.49% Conclusion I was impressed with the power supply; it took everything I could throw at it. It was quiet, kept cool and was well behaved, no shut downs, stutters or reboots. It also appeared to wake up my pc a little quicker than my Coolermaster, although I did not specifically test this. I docked one star for the 12V rail deviation, 1.6% was definitely higher that I liked. Recommended.
Good PSU. I got this for my corsair 5000D build. It has all the connections and plenty of watts you will need for a modern pc build. Currently running ROG Strix Z590-A motherboard with 10900k CPU, 6900xt GPU and 10 RGB fans. Love that it comes with white cables, matches my case. You cant really see the power supply with the case I am using but it is still looks very nice. The only gripe i have is that I found it cheaper at another major online retailer when i got home.
I just had to have the Corsair PSU to match the rest of my Corsair build. Why not? Unfortunately, I didn't bother to read reviews because I expected only the best from Corsair. I'm able to use all my nice braided cables from another brand power supply, but I unfortunately must switch out the PCIe cables. Had I know that this only included two splitter cables, I probably would have just picked another power supply. I am not comfortable plugging in my brand new 3070 with a single cable. Maybe it would be OK, but I'm not well enough financially to take those kinds of chances. So, I have both PCIe cables plugged into my GPU, and it's quite ugly having those extra ends in there. I tried to tuck them in and smooth it out, but there's no hope. Check out my photos and ... MoreI just had to have the Corsair PSU to match the rest of my Corsair build. Why not? Unfortunately, I didn't bother to read reviews because I expected only the best from Corsair. I'm able to use all my nice braided cables from another brand power supply, but I unfortunately must switch out the PCIe cables. Had I know that this only included two splitter cables, I probably would have just picked another power supply. I am not comfortable plugging in my brand new 3070 with a single cable. Maybe it would be OK, but I'm not well enough financially to take those kinds of chances. So, I have both PCIe cables plugged into my GPU, and it's quite ugly having those extra ends in there. I tried to tuck them in and smooth it out, but there's no hope. Check out my photos and you'll see why I'm upset... I plan on contacting Corsair to see if they'll send better (simpler) cables.
This makes almost no noise. It's literally the quietest power supply I've ever had.I'm not a huge fan of the cables, but they are ok. They are white to match the power supply but they are really stiff and a little hard to manage. Overall they aren't worse than I've had in other power supplies but I was expecting better for the price. It looks like Corsair sells sleeved cables too, but man those are expensive.Anyway it's quiet, modular, and if you're doing a white build looks great. You could do much worse for the price or spend a lot more for not much better.
If you are debating between which power supply, look no further. This 850 rocks it. And first glance at it and you know you getting a premium product. It has a 10 year warranty just to back up its premium product. Corsair has always been great to deal with. Very helpful with any questions and recommendations. The caes being flat are a huge plus, makes things very well organized. The black on the power supply is very well laid down. It looks very natural on the power supply. The threads for the screws are way better thrn expected, much detail was focused on there. Before I bought this I wondered how the cables attached would be like. And it's very secure. It's goes in nice and tight for a quality fit. Nothing is loose. Very impressed by this detail.
It is a very good power supply. It is power enough to meet most people's needs. It has the normal form factor for an ATX case. It works, and it is quiet much of the time. Yes, if you have intensive gaming going on it will get louder, but it seems that Corsairs has engineered this power supply to perform well., It is well equipped and will work well for most users. This is not the box for a workstation or other computer that is not demanding high amounts of cpu and/or gpu demands. It would good for a gamer or a person doing intensive productivity work.
| Brand | CORSAIR |
| Form Factor | ATX, EPS |
| Modular | Yes |
| 80 PLUS Rating | 80 PLUS Gold |
| Power Output | 850 watts |
