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Overview

CORSAIR RM850e (2025) 850W fully modular ATX power supply. ATX 3.1 & PCIe 5.1 compliant with a native 12V-2x6 cable. Cybenetics Gold efficiency, a 120mm low-noise rifle bearing fan, 105°C-rated capacitors and Modern Standby support for quiet, reliable PC power.

CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply

Model: CP-9020296-NA
Web Code: 20212808
Sold and shipped by | 4.3 seller rating (256 reviews)

Available for deliveryAvailable online only

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Seller Return Policy

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Warranty Information

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

What's included:

  • 1 CORSAIR RM850e power supply, modular cable set

The CORSAIR RM850e (2025) is a fully modular, low-noise 850W ATX power supply built for modern PC builds. Compliant with the ATX 3.1 and PCIe 5.1 standards and supplied with a native 12V-2x6 cable, it delivers clean, efficient power to today's demanding components. A specially tuned 120mm rifle bearing fan keeps noise down even at full load, while industrial-grade 105°C-rated capacitors ensure steady, dependable electrical performance.

·850W Fully Modular: connect only the cables your build needs for cleaner installs and better airflow.

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·ATX 3.1 & PCIe 5.1 Compliant: includes a native 600W 12V-2x6 (12+4-pin) cable for the latest graphics cards.

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·Cybenetics Gold Efficiency: high-efficiency operation for lower heat, lower bills and quieter running.

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·120mm Rifle Bearing Fan: a specially calculated fan curve keeps fan noise down, even at full load.

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·105°C-Rated Capacitors: industrial-grade capacitors deliver steady, reliable power and dependable electrical performance.

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What's in the Box:

·1 CORSAIR RM850e (2025) 850W power supply

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·Modular cable set (ATX, EPS12V, PCIe 12V-2x6, SATA, PATA)

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For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping on all orders over $100 (before taxes, fees, and promo codes).

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • No restrictions in Canada
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
Product Category
Computer components
Return/Exchange Period
30 days
Condition
Unopened

We can only acceept returns that are in their original packaging and do recommend customers check manufacturer's warranties for exclusions.

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