Specifications
Wattage850 wattsModularFully modularEnergy Efficiency80 PLUS GoldATX Connector1x 24-pin ATX (24-pin) Connector. 2x ATX 12V/EPS12V (4+4-pin) ConnectorsPCIe Connector4Peripheral Connector4
Key Specs
Wattage850 wattsModularFully modularEnergy Efficiency80 PLUS GoldATX Connector1x 24-pin ATX (24-pin) Connector. 2x ATX 12V/EPS12V (4+4-pin) ConnectorsPCIe Connector4Peripheral Connector4SATA Connector14EPS12V Connector2Product Length150.11 millimeters
General
Product NameRMx Series RM850x 80 PLUS Gold Fully Modular ATX Power SupplyBrandCORSAIRModel NumberCP-9020200-NAColorBlackColor CategoryBlack
Power
Wattage850 wattsModularFully modularEnergy Efficiency80 PLUS GoldSpecification ComplianceATX12V v2.4, EPS12V v2.92Overload ProtectionYesPower Cord IncludedYesCord Length5 feet
Connectivity
ATX Connector1x 24-pin ATX (24-pin) Connector. 2x ATX 12V/EPS12V (4+4-pin) ConnectorsFloppy ConnectorFALSEMain ConnectorATX 24-pinPCIe Connector4Peripheral Connector4SATA Connector14EPS12V Connector2
Dimensions
Product Height86.11 millimetersProduct Width160.02 millimetersProduct Length150.11 millimetersProduct Weight60 ounces
Cooling
Cooling SystemAirCooling Fan Type135mm Magnetic Levitation FanFan/Cooling System ConnectorPCI E, ATXNumber of Fans Included1
Features
Lighting TypeNone
Warranty
Manufacturer's Warranty - Parts10 yearsManufacturer's Warranty - Labor10 years
Other
UPC840006604839
CORSAIR RM850x Series power supplies with EPS12V connectors are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC. RM850x PSUs use only Japanese 105°C capacitors, for long life and reliability backed by a ten-year warranty. A 135mm magnetic levitation bearing fan ensures high performance coupled with low noise. Wake your computer faster and consume less power with support for Modern Standby sleep mode. Zero RPM mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you need only connect the cables your system requires. An RM850x PSU is quiet, efficient and dependable enough to power your high-performance PC for years to come.
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
Search
- A: AnswerHi 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: Questionwhat is the difference between this and the old model?(5 answers)
A: AnswerHi 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 -AlbertAnswered by CorsairArt
- A: AnswerMainly 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: QuestionHow many PCIe cables come with this PSU?(4 answers)
A: AnswerThe 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 connectorsAnswered by Mikel
Q: QuestionPower supply fan is not spinning ?(5 answers)
A: AnswerAccording to Corsair's web site, at low and medium loads the cooling fan switches off, turns on at high loads.Answered by Timfromme
- A: AnswerHi, The RM850x's dimensions are 160mm(L) x 150mm(W) x 86mm (H). If you have any additional questions, we'd be happy to assist: help.corsair.com -Albert
Answered by Corsair
Q: QuestionWill this work for a rtx 3080(6 answers)
A: AnswerYessir. For sure.Answered by Tazytazz
- A: AnswerHello Steve, I believe it would but please confirm with the case's product page on NZXT's site. -Art
Answered by Corsair
CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black
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Reviews
Rating 4.8 out of 5 stars with 1605 reviews
4.8Rating by feature
- 4.6Value
Rating 4.6 out of 5 stars
- 4.8Quality
Rating 4.8 out of 5 stars
- 4.8Ease of Use
Rating 4.8 out of 5 stars
1 expert review
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Rated 5 out of 5 stars
GREAT PSU - Never cheap out on your PSU
Upgraded to this from my old unbranded 700W that came in my prebuilt years ago. Value is great for this 850W. The box came in with all the connections you will need PLUS more if you have multiple hardware. Unlike my old PSU, this PSU is fully modular which is amazing, not needing all those extra cables hanging or just taking space. You won't be able to mess up the connections even if your tried because these cables are also labelled to clearly let you know where they go. Fan is quiet when idle and while under load. Great PSU, powers my i9-9900k and RTX 4070 completely fine. Great quality and warranty is unbeatable from CORSAIR. Lots of power and I know this PSU will last for many many years to come and it should still be able to hold up for future upgrades. Never cheap out on your PSU, quality PSU at a great price
Posted by LorL
Rated 5 out of 5 stars
Awesome
Tier A quality without paying an arm and a leg. Super easy to install and comes with plenty of the cables you will need. I'm running a pretty old system currently but will be upgrading soon and this will do the job for both systems. Cable management is MUCH easier than my old PSU since you can plug in only the cables that you need and this thing is also super quiet. I have only had it a week so we will see how long it will last but I have high confidence.
Posted by Sean
Rated 5 out of 5 stars
One of the best PSUs
I've had multiple corsair psus in the past and they never failed me. I got this one as I needed more juice for a new gpu. No issues as always and build quality seems great.
Posted by Wojtek
