---
title: "CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black"
url: "https://omorp.com/product/corsair-rm850x-fully-modular-low-noise-atx-power-supply-atx-3-1-compliant-pcie-5-1-support-cybenetics-gold-efficiency-native-12v-2x6-connector-black-b0dj1jl3mk"
asin: "B0DJ1JL3MK"
brand: "Corsair"
category: "pc-hardware"
price: "$85.69"
price_checked: "2026-08-03"
site: "Elan's Best (omorp.com)"
---

# CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black

CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black

The CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black was $85.69 when we checked it on 2026-08-03. That is about 9 percent below the median of the 7 prices we have recorded for it.

## Overview

CORSAIR RMx Series Fully Modular Low-Noise Power Supplies deliver quiet, dependable power with Cybenetics Gold efficiency to your PC. Fully modular, ultra-flexible embossed cables make PC builds easy, as you connect only the cables your system requires. Compliant with the ATX 3.1 power standard from Intel®, RMx PSUs have the connections needed to power today’s demanding PC hardware including a native 12V-2x6 connector. 100% Japanese 105°C-rated electrolytic capacitors deliver fantastic electrical performance, while a 140mm FDB fan provides low noise cooling. Backed by a ten-year warranty, RMx PSUs are the gold standard for many years to come.

## Editor's note

This is my pick for build quality: all-Japanese 105C capacitors, 80+ Gold, and a 10-year warranty. That capacitor pedigree is the reason I'd trust it for the long haul.

## Specifications

- Compatible Devices: Monitor
- Form Factor: ATX
- Item Dimensions: 2.3 x 3.39 x 5.91 inches
- Item Weight: 3.9 pounds
- Model Name: RMx
- Brand: Corsair
- Model Number: CP-9020270-NA

## Price history (tracked by Elan's Best)

- Current: $85.69 (checked 2026-08-03)
- Lowest we have recorded: $79.50 on 2026-07-06
- Highest we have recorded: $139.99 on 2026-07-13
- Our own weekly checks: 7 over 38 days, from 2026-06-26 to 2026-08-03
- Median of our checks: $94.14

## Common questions

### Is the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black worth it?

This is my pick for build quality: all-Japanese 105C capacitors, 80+ Gold, and a 10-year warranty. That capacitor pedigree is the reason I'd trust it for the long haul. Its Amazon listing shows 4.7 out of 5 stars across 738 ratings, which is the retailer's figure and not our verdict.

### How much does the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black cost?

The CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black was $85.69 when we checked it on 2026-08-03. The median of the 7 prices we have recorded for it is $94.14. Prices change often, so the live retailer link carries the current number.

### Is now a good time to buy the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black?

At $85.69 the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black is about 9 percent below the median of the 7 prices we have recorded for it, though we have seen it as low as $79.50 on 2026-07-06.

### What is the lowest price the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black has been?

The lowest price on our record for the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black is $79.50 on 2026-07-06, and the highest is $139.99 on 2026-07-13. That record is 7 weekly checks we took ourselves.

Retailer rating (from the Amazon listing, not our score): 4.7 out of 5 across 738 reviews.

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Disclosure: Elan's Best may earn an affiliate commission on purchases made through our links, at no extra cost to the buyer. Commissions never change our picks.

Source: https://omorp.com/product/corsair-rm850x-fully-modular-low-noise-atx-power-supply-atx-3-1-compliant-pcie-5-1-support-cybenetics-gold-efficiency-native-12v-2x6-connector-black-b0dj1jl3mk