Corsair
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CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
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CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
The CORSAIR RM850x ATX Power Supply offers fully modular design, high efficiency, and ultra-flexible cables for the ultimate gaming experience.
CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
Item #: 152433906

CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts

86% of respondents would recommend this to a friend

Item #: 152433906

XCD 488

XCD 589

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Order now and get it around Friday, September 11
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The CORSAIR RM850x ATX Power Supply offers fully modular design, high efficiency, and ultra-flexible cables for the ultimate gaming experience.
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What Stands Out

Fully Modular Design
Simplifies cable management, allowing users to customize their setup with only the necessary cables, leading to improved airflow and aesthetics in the PC build.
High Efficiency
Certified Cybenetics Gold, ensuring minimal energy waste, which reduces electricity costs and promotes a more sustainable computing experience compared to competitors.
Low Noise Operation
Engineered with high-quality Japanese capacitors and optimized fan design, delivering quiet performance under load, making it ideal for gamers and professionals seeking a peaceful environment.

Product Details

Shop CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts online at a best price in Anguilla. 12865812424
  • CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
Maximum watts out850 W
Computer power supply form factorInternal
FeaturesFull Modular
BrandCorsair
Input voltage120 V
Assembled product height5.1 in (13 cm)
Has nrtl listing certificationN
ColorBlack
Color categoryBlack
ManufacturerCORSAIR
Model nameCP-9020270-NA
ModelCP-9020270-NA
Item Weight4.6 lbs (2.09 kg)

Who Should Buy?

Suitable For
  • Gaming Enthusiasts

    Ideal for gamers needing stable power and high efficiency for demanding graphics cards and performance hardware.

  • PC Builders

    Great for users building custom PCs who want a reliable and fully modular power supply for easier cable management.

  • Content Creators

    Perfect for video editors and designers requiring consistent power supply to avoid interruptions during demanding tasks.

Not Suitable For
  • Budget Gamers

    Not suitable for gamers on a tight budget seeking more affordable power supply options without premium features.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the wattage of the CORSAIR RM850x power supply?

    Answer: The wattage is 850 Watts.
  • Question: Is this power supply compatible with PCIe 5.1?

    Answer: Yes, it fully supports PCIe 5.1.
  • Question: What kind of fan does this power supply use?

    Answer: It uses a low-noise 140mm FDB fan.

Corsair All Computer Power Supplies Editorial Review

CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts features a full modular design that simplifies cable management, making it ideal for both gaming and workstation builds. Many users praise its solid construction and reliability, resolving issues like power fluctuations and instability that some experienced with lesser PSUs. Although installation may pose challenges for beginners due to less clear documentation, the overall performance and quality of the unit significantly enhance computer operation and satisfaction, reinforcing its value as a critical component in high-performance setups.

Customer Reviews & Ratings

20 customers ratings
  • 5 Star
    95%
  • 4 Star
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  • 3 Star
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Pros

  • Fully modular for clean cable management
  • Solid build quality enhances reliability
  • Compatible with micro ATX cases
  • Includes high-quality, well-insulated cables

Cons

  • Installation directions could be clearer for beginners

Platform Trust & Buyer Confidence

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“The delivery was fast and the product came undamaged and authentic.”

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“Fast, convenient and cheap. Great store!”

27 August 2026 · via Trustpilot
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XCD 488

XCD 589

Order now and get it around Friday, September 11

QTY:

Only 3 items left in stock.
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Features & Benefits

  • Fully modular design for easy cable management.
  • Cybenetics Gold-certified for high efficiency.
  • Supports PCIe 5.1 with native 12V-2x6 connector.
  • Low-noise 140mm FDB fan with zero RPM mode.
  • Built with 100% Japanese 105°C-rated capacitors.
  • Maximum operating temperature of 50°C ensures reliability.

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