CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black
User rating, 4.7 out of 5 stars with 484 reviews.
4.7(484 Reviews)- 1 Expert Review
- 14 Answered Questions
If received today, the last day to return this item would be Jun 10. Learn more ˃
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Description
Features
Fully Modular
Only connect the cables your system needs, making clean and tidy builds easier.
135mm Magnetic Levitation Fan
Utilizes a magnetic levitation bearing and custom engineered rotors for high performance, low noise, and superior reliability.
EPS12V Connector
For wide compatibility with modern graphics cards and motherboards.
100% All Japanese 105°C Capacitors
Premium internal components ensure unwavering power delivery and long-term reliability.
Modern Standby Compatible
Extremely fast wake-from-sleep times and better low-load efficiency.
80 PLUS Gold Certified
High efficiency operation for lower power consumption, less noise, and cooler temperatures.
Zero RPM Fan Mode
At low and medium loads the cooling fan switches off entirely for near-silent operation.
Resonant LLC Topology with DC-to-DC Conversion
Provides clean, consistent power, reduces coil whine for quieter operation, and enables use of more energy efficient sleep states.
Ten-Year Warranty
Your guarantee of reliable operation that will last across several system builds
What's Included
- RM850X
- 1x ATX CABLE 24-PIN(24)
- 3x EPS/ATX12V CABLE 8- PIN (4+4)
- 2x PCIe CABLE 8-PIN (6+2)
- 2x SATA CABLE (3 SATA - Right Angle)
- 2x SATA CABLE (4 SATA - Right Angle)
- 1x PERIPHERAL CABLE (4- PIN)
- Safety leaflet
- Mounting screws
- Cable ties
Q: Questionwhat is the difference between this and the old model?
Asked by Twan.
- A:Answer Hi Twan, Great question! Aside from sporting an updated design, the 2021 RMx features: • A Magnetic Levitation fan, providing optimal cooling at low noise levels • Resonant LLC Topology with DC-to-DC Conversion, which provides clean, consistent power, reduces coil whine for quieter operation, and enables use of more energy efficient sleep states Zero RPM Fan Mode, premium internal components (100% All Japanese 105°C Capacitors), and 80 Plus Gold certification are still consistent with our previous RMx PSUs! Feel free to let us know if you have any additional questions, we'd be happy to help: support.corsair.com -Albert
Answered by CorsairArt
Q: QuestionMy ATX motherboard (ASUS ROG Strix X570-F Gaming) has two slots for CPU power connections will this power supply support it?
Asked by Thattechguy.
- A:Answer Hi Thattechguy, Yes, this will come with enough cables to connect to the two CPU power connections on your motherboard. We label them as EPS 12V cables so you can discern which cable to connect. -Brian
Answered by Corsair
Q: QuestionHow many PCIe cables come with this PSU?
Asked by Anonymous.
- A:Answer The RM850X marked with model: CP-9020200-NA (SKU: 6459244) has two PCI-E cables with a total of four 6+2 pin PCI-E connectors. The RM850X marked with CP-9020180-NA (SKU: 6229601) has three cables with a total of six 6+2 pin PCI-E connectors
Answered by Mikel
Q: QuestionWhat is the difference between the RM and RMx series? I can’t find that information. I am looking to replace a Bronze level 650 watt Corsair power supply to handle a 3080 graphics card. Thanks!
Asked by Dennis.
- A:Answer Mainly the RMx uses high quality parts, more specifically on the capacitors. You always want to have great capacitors for high-gaming or else those can go POP! And have a dead PSU with a rare chance of taking a component with it.
Answered by JavaKitsune
Q: QuestionWould this fit a Lian-Li O11D Mini? This power supply seems a little smaller than previous corsair power supplies but I want to know if it will fit this case.
Asked by Miro.
- A:Answer According to PCPartPicker.com, they are not compatible. I also checked the case on Newegg and saw that the size of PSU you want to look for is a SFX/ SFX-L. I would check Lian Li's website to see exact dimensions though, just to be absolutely sure.
Answered by Alex
Q: QuestionWill this work for a rtx 3080
Asked by Pheonix1234.
- A:Answer Yessir. For sure.
Answered by Tazytazz
Q: QuestionI currently have a CP-9020099-NA CX Series™ CX850M. Will those cables work with this? I know they may fit but did not know if they use the same pinout on the cables.
Asked by Terry.
- A:Answer You should never re use cables from an old psu, they may work but it is also a fire hazard and compatibility issue potentially. All psu should come with the cables needed.
Answered by Bdon1313
Q: QuestionI am building a 12700k with an asus z690 tuf gaming mother board. will i have all connections needed with this power supply?
Asked by YourISP.
- A:Answer I have a 3080ti and 2 8 pins in my CPU (Intel). You will be just fine.
Answered by Bailey