Corsair
Corsair CP-9020270-NA RM850x 850W ATX 3.1 Power Supply
★★★★★
850W
Power Your System with Uncompromising Reliability The CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply is designed for demanding PC builds. Compliant with ATX 3.1 and PCIe 5.1 standards, this power supply delivers stable and efficient power with a Cybenetics Gold rating. Its fully modular ...
$93.15*$169.99Save 45%
View on Amazon
✓ In Stock on Amazon.com
*Price sourced from Amazon.com. Last updated:Jun 16, 2026.Price and availability are subject to change.
Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.
Notice a mistake? Let Us Know
Overview
Power Your System with Uncompromising Reliability
The CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply is designed for demanding PC builds. Compliant with ATX 3.1 and PCIe 5.1 standards, this power supply delivers stable and efficient power with a Cybenetics Gold rating. Its fully modular design and native 12V-2x6 connector simplify cable management and ensure compatibility with the latest graphics cards.
Specifications:
- Form Factor: ATX
- Wattage: 850 Watts
- Efficiency: Cybenetics Gold
- Modularity: Fully Modular
- Compliance: ATX 3.1, PCIe 5.1
- Connector: Native 12V-2x6
- Fan: 140mm FDB Fan
- Color: Black
Key Features
Fully Modular: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the cables your system needs.
Cybenetics Gold-Certified: Rated for up to 91% efficiency, resulting in lower power consumption, less noise, and cooler temperatures.
ATX 3.1 Compliant: Compliant with the ATX 3.1 power standard from Intel, supporting PCIe 5.1 and resisting transient power spikes.
Native 12V-2x6 Connector: Ensures compatibility with the latest graphics cards with a direct GPU to PSU connection – no adapter necessary.
Embossed Cables with Low-Profile Combs: Sleek, ultra-flexible embossed cables look great and make installing and connecting the RMx a breeze.
Specifications
Brand
Corsair
Model Number
CP-9020270-NA
Wattage
850W
Cabling
Fully Modular
Efficiency Certification
Cybenetics Gold-Certified (up to 91% efficiency)
ATX Standard
ATX 3.1 Compliant
PCIe Support
PCIe 5.1
GPU Connector
Native 12V-2x6 Connector
Cables
Embossed with Low-Profile Combs
Similar Products
Other products from the same family that visitors often consider:
Currently UnavailableCorsair CP-9020188-NA RM850x 850W White Power Supply
Check on Amazon →
✓ AvailableCorsair CP-9020093-NA RM850x 850W 80+ Gold Power Supply
$144.04
View on Amazon →
✓ AvailableCorsair CP-9020180-EU RM850X 850W V2 Power Supply
$208.00
View on Amazon →
✓ AvailableCorsair CP-9020252-NA RM850x SHIFT 850W PSU ATX 3.0
View on Amazon →
Currently UnavailableCorsair CP-9020200-NA RM850x 850W 80+ Gold PSU
Check on Amazon →Pros & Cons
👍 Pros
- Features fully modular cabling, allowing you to connect only the necessary cables for a cleaner build and improved airflow.
- Cybenetics Gold-Certified for up to 91% efficiency, leading to lower power consumption, reduced noise, and cooler operating temperatures.
- Compliant with the ATX 3.1 power standard from Intel, ensuring support for PCIe 5.1 and enhanced resistance to transient power spikes.
- Includes a native 12V-2x6 connector, providing direct compatibility with the latest graphics cards without requiring adapters.
- Equipped with sleek, ultra-flexible embossed cables and low-profile combs, making installation and cable management a breeze.
👎 Cons
- The 850W output, while substantial, may be overkill for some lower-power systems, potentially adding unnecessary cost.
- Specific noise levels in dB at various loads are not provided, though it's described as "low-noise."
- The Cybenetics Gold certification, while excellent, is not the absolute highest efficiency rating available (e.g., Platinum or Titanium).
- While compatible with ATX 3.1, specific details on its transient power capabilities beyond "resisting" spikes are not quantifiable.
- The aesthetic "embossed cables with low-profile combs" are a visual benefit that may not appeal to all users or be a priority for everyone.
Frequently Asked Questions
What is the benefit of a fully modular power supply like the Corsair RM850x?
A fully modular design allows you to connect only the cables your system requires, which helps in reducing cable clutter, improving airflow within your PC case, and simplifying the build process.
What does "Cybenetics Gold-Certified" mean for this power supply?
Being Cybenetics Gold-Certified means the Corsair RM850x is rated for up to 91% efficiency. This results in lower power consumption, reduced heat generation, and quieter operation for your system.
Is this power supply compatible with the latest graphics cards?
Yes, the Corsair RM850x is ATX 3.1 compliant and features a native 12V-2x6 connector, ensuring direct compatibility with the latest graphics cards without the need for adapters.
What new features does ATX 3.1 compliance bring to this power supply?
ATX 3.1 compliance means this power supply supports PCIe 5.1 and is designed to resist transient power spikes, providing stable and reliable power delivery to modern components.
How do the included cables enhance the building experience?
The RM850x comes with sleek, ultra-flexible embossed cables and low-profile combs. These cables look great and are designed to make installing and connecting components simple and clean.
Related Products
