---
product_id: 58232052
title: "Corsair RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black"
brand: "corsair"
price: "$58.08"
currency: USD
in_stock: false
category: "Corsair"
url: https://www.desertcart.us/products/58232052-corsair-rmx-series-rm850x-850-watt-80-gold-certified-fully
store_origin: US
region: United States of America
---

# 850W peak power Zero RPM silent fan mode 105°C Japanese capacitors Corsair RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black

**Brand:** corsair
**Price:** $58.08
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power up silently, build boldly.

## Quick Answers

- **What is this?** Corsair RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black by corsair
- **How much does it cost?** $58.08 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/58232052-corsair-rmx-series-rm850x-850-watt-80-gold-certified-fully)

## Best For

- corsair enthusiasts

## Why This Product

- Trusted corsair brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Industrial-grade 105°C Japanese capacitors ensure rock-solid stability and a decade of worry-free use.
- • **Power that Performs:** 850 watts of reliable, efficient energy to fuel your high-performance rig without compromise.
- • **Certified Efficiency:** 80 PLUS Gold certification guarantees lower power consumption, cooler temps, and reduced energy bills.
- • **Whisper-Quiet Operation:** Zero RPM fan mode keeps noise at bay during low to medium loads—focus on work or play, uninterrupted.
- • **Tailored Cable Management:** Fully modular design means you only connect what you need—clean, sleek builds that impress.

## Overview

The Corsair RM850x is a fully modular 850W power supply delivering 80 PLUS Gold efficiency with ultra-quiet Zero RPM fan mode and premium 105°C Japanese capacitors. Designed for professional-grade PC builds, it offers clean cable management, exceptional reliability backed by a 10-year warranty, and whisper-quiet operation to keep your workspace distraction-free.

## Description

Corsair RM850x series power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC. Using only Japanese 105 Degree C capacitors, users can depend on an RM850x PSUs' long life and reliability, backed by a ten year warranty. Zero RPM Mode means an RM850x series PSU is virtually silent at low and medium loads, and even at maximum power, a low noise fan ensures quiet operation. Fully modular cables make PC builds and upgrades easy, as you only need to install the cables your system requires. Quiet, efficient and dependable, an RM850x PSU has everything you need to power your high performance PC for years to come.

## Features

- 80 Plus Gold certified for lower power consumption, less noise and cooler temperatures
- For maximum cooling surface area and performance
- Zero RPM fan mode for near silent operation at low to medium loads; Continuous output rated temperature: 50°C
- 100 percent industrial grade, 105°C rated Japanese capacitors ensure unwavering power and reliability
- Fully modular cables, so you only connect the cables your system needs. Fan size-5.3 inches iCUE Compatibility-No. Modern Standby Compatible- No

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079H5WNXN |
| Best Sellers Rank | #686 in Computer Power Supplies |
| Brand | Corsair |
| Built-In Media | 2 EPS/ATX12V CABLE 8-PIN (4+4), 2 PERIPHERAL CABLE (4-PIN), 2 SATA CABLE (3 SATA), 3 PCIe CABLE 8-PIN (6+2), ATX CABLE 24-PIN (20+4), FLOPPY DRIVE ADAPTER (4-PIN), RM850x 80 PLUS Gold Fully Modular ATX Power Supply, SATA CABLE (4 SATA) |
| Compatible Devices | Personal Computer |
| Connector Quantity | 36 |
| Connector Type Used on Cable | ATX, EPS |
| Cooling Method | Air |
| Customer Reviews | 4.8 4.8 out of 5 stars (5,052) |
| Fan Size | 13.5 centimeters |
| Form Factor | ATX12V |
| Global Trade Identification Number | 00843591035187 |
| Item Dimensions | 6.3 x 5.91 x 3.39 inches |
| Item Type Name | Computer Power Supply |
| Item Weight | 3.7 pounds |
| Manufacturer | CORSAIR |
| Maximum Input Voltage | 120 volts_of_alternating_current |
| Mfr Part Number | CP-9020180-NA |
| Minimum Input Voltage | 100 volts_of_alternating_current |
| Model Name | RMx |
| Model Number | CP-9020180-NA |
| Number of Fans | 1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Wattage | 850 |
| Power Supply Design | Full Modular |
| System Bus Connector Type | 24 Pin (ATX), 4+4 Pin (EPS) |
| UPC | 843591035187 |
| Upper Temperature Rating | 105 °C |
| Warranty Description | 10 years warranty |
| Wattage | 850 watts |

## Product Details

- **Brand:** Corsair
- **Compatible Devices:** Personal Computer
- **Connector Type:** ATX, EPS
- **Cooling Method:** Air
- **Form Factor:** ATX12V
- **Item Weight:** 3.7 pounds
- **Item dimensions L x W x H:** 6.3 x 5.91 x 3.39 inches
- **Model Name:** RMx
- **Output Wattage:** 850
- **Wattage:** 850 watts

## Images

![Corsair RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black - Image 1](https://m.media-amazon.com/images/I/71dj+5GQwEL.jpg)

## Available Options

This product comes in different **Pattern, Size** options.

## Frequently Bought Together

- Corsair RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black
- Samsung 990 PRO SSD NVMe M.2 PCIe Gen4, M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P2T0B/AM
- AMD Ryzen 7 7800X3D 8-Core, 16-Thread Desktop Processor

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-23*