---
product_id: 338858425
title: "CorsairRM850 (2021), RM Series, 850 Watt 80 Plus Gold Fully Modular ATX Power Supply (Triple EPS12V Connectors, Low-Noise Operation, Zero RPM Fan Mode, 105°C Capacitors, Modern Standby) White"
brand: "corsair"
price: "¥62573"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/338858425-corsairrm850-2021-rm-series-850-watt-80-plus-gold-fully
store_origin: JP
region: Japan
---

# 850W Power Fully Modular Zero RPM Mode CorsairRM850 (2021), RM Series, 850 Watt 80 Plus Gold Fully Modular ATX Power Supply (Triple EPS12V Connectors, Low-Noise Operation, Zero RPM Fan Mode, 105°C Capacitors, Modern Standby) White

**Brand:** corsair
**Price:** ¥62573
**Availability:** ✅ In Stock

## Summary

> Power Up Your Build! ⚡

## Quick Answers

- **What is this?** CorsairRM850 (2021), RM Series, 850 Watt 80 Plus Gold Fully Modular ATX Power Supply (Triple EPS12V Connectors, Low-Noise Operation, Zero RPM Fan Mode, 105°C Capacitors, Modern Standby) White by corsair
- **How much does it cost?** ¥62573 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/338858425-corsairrm850-2021-rm-series-850-watt-80-plus-gold-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

- • **Durable and Reliable:** 105°C-rated capacitors provide exceptional electrical performance and longevity.
- • **Triple Compatibility:** Equipped with triple EPS12V connectors for seamless integration with modern hardware.
- • **Clean Builds Made Easy:** Fully modular cables allow for a tidy setup, connecting only what you need.
- • **Silent Cooling Technology:** Zero RPM fan mode for near-silent operation at low to medium loads.
- • **Whisper-Quiet Performance:** Tuned for low-noise operation, ensuring a peaceful computing experience.

## Overview

The Corsair RM850 (2021) is an 850 Watt 80 Plus Gold fully modular ATX power supply designed for modern PC builds. It features triple EPS12V connectors, low-noise operation, and a zero RPM fan mode for silent performance. With industrial-grade 105°C capacitors and a sleek white housing, it combines reliability with aesthetic appeal.

## Description

CorsairRM850 (2021), RM Series, 850 Watt 80 Plus Gold Fully Modular ATX Power Supply (Triple EPS12V Connectors, Low-Noise Operation, Zero RPM Fan Mode, 105°C Capacitors, Modern Standby) White

## Features

- Fully Modular Cables: Only connect the cables your system needs, making clean and tidy builds easier
- Triple EPS12V Connectors: For full compatibility with modern graphics cards and motherboards
- Tuned for Low-Noise Operation: A 140mm rifle bearing fan with a specially calculated fan curve ensures that fan noise is kept to a minimum, even at full load
- Zero RPM Fan Mode: At low and medium loads the cooling fan switches off entirely for near-silent operation
- 105°C-Rated Capacitors: Industrial-grade capacitors deliver solid electrical performance and reliability
- Brilliant White Housing: Accentuate modern-looking white PC builds with a PSU that matches your theme

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Corsair |
| Product Dimensions | 16 x 15 x 8.6 cm; 1.65 kg |
| Item model number | CP-9020232-UK |
| Manufacturer | CORSAIR HOLDINGS HONG KONG LTD |
| Series | ATX Power Supply |
| Colour | White |
| Form Factor | ATX |
| Voltage | 230 Volts |
| Wattage | 850 watts |
| Are Batteries Included | No |
| Item Weight | 1.65 kg |
| Guaranteed software updates until | unknown |

## Product Details

- **Model name:** ATX Power Supply
- **Brand:** Corsair
- **Compatible devices:** Personal Computer
- **Connector type:** EPS
- **Output wattage:** 850
- **Form factor:** ATX
- **Wattage:** 850 watts
- **Cooling method:** Air
- **Item dimensions L x W x H:** 16 x 15 x 8.6 centimetres
- **Item weight:** 1.65 Kilograms

## Images

![CorsairRM850 (2021), RM Series, 850 Watt 80 Plus Gold Fully Modular ATX Power Supply (Triple EPS12V Connectors, Low-Noise Operation, Zero RPM Fan Mode, 105°C Capacitors, Modern Standby) White - Image 1](https://m.media-amazon.com/images/I/61JljNmm8pL.jpg)
![CorsairRM850 (2021), RM Series, 850 Watt 80 Plus Gold Fully Modular ATX Power Supply (Triple EPS12V Connectors, Low-Noise Operation, Zero RPM Fan Mode, 105°C Capacitors, Modern Standby) White - Image 2](https://m.media-amazon.com/images/I/81PaTlZzcfL.jpg)
![CorsairRM850 (2021), RM Series, 850 Watt 80 Plus Gold Fully Modular ATX Power Supply (Triple EPS12V Connectors, Low-Noise Operation, Zero RPM Fan Mode, 105°C Capacitors, Modern Standby) White - Image 3](https://m.media-amazon.com/images/I/8136IzDnIYL.jpg)
![CorsairRM850 (2021), RM Series, 850 Watt 80 Plus Gold Fully Modular ATX Power Supply (Triple EPS12V Connectors, Low-Noise Operation, Zero RPM Fan Mode, 105°C Capacitors, Modern Standby) White - Image 4](https://m.media-amazon.com/images/I/41CQV3NxkrL.jpg)
![CorsairRM850 (2021), RM Series, 850 Watt 80 Plus Gold Fully Modular ATX Power Supply (Triple EPS12V Connectors, Low-Noise Operation, Zero RPM Fan Mode, 105°C Capacitors, Modern Standby) White - Image 5](https://m.media-amazon.com/images/I/71zeAOyQAmL.jpg)

## Available Options

This product comes in different **Colour Name, Size Name, Style Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Power and Silence Combined: A Remarkable PSU
*by M***W on 19 May 2024*

The Corsair RM850ePower Supply is a powerhouse of performance and efficiency, perfectly suited for demanding PC builds. Its fully modular design simplifies cable management, allowing for a clean and organized setup while ensuring maximum airflow within the case.One of the standout features of this PSU is its low-noise operation. Even under heavy loads, the fan remains remarkably quiet, maintaining a peaceful computing environment without sacrificing performance. This is particularly appreciated during intense gaming sessions or when working on CPU-intensive tasks for extended periods.With an 850-watt capacity, this PSU delivers ample power to support high-end components, making it suitable for enthusiasts and gamers alike. Its 80 PLUS Gold certification ensures high efficiency, translating to lower energy consumption and reduced operating costs over time.Installation is straightforward, thanks to the included user manual and modular cables, which allow for easy customization based on the specific needs of your build. The build quality is excellent, as expected from Corsair, with sturdy construction and reliable components.While the performance and features of the RM850e are top-notch, the price may be a deterrent for budget-conscious builders. However, considering its efficiency, reliability, and low-noise operation, the investment is justified for those seeking a premium power supply for their high-performance PC builds.In summary, the Corsair RM850e is a compelling choice for enthusiasts who prioritize performance, efficiency, and quiet operation in their PC setups. Highly recommended.

### ⭐⭐⭐⭐⭐ Superb PSU
*by D***B on 1 June 2025*

Superb PSU, looks great and fit into the case perfectly, lots of cables and this runs really quietly. Corsair quality build and performance

### ⭐⭐⭐⭐⭐ Perfect, cant beat it
*by J***N on 18 April 2025*

Perfect psu for atx / mid atx builds. Fully modular, basically silent unless you are pushing the system to its limits and by then the case fans are already louder than it's own. Some cables are braided which are a nice touch, and very high quality also. Gold Standard is also a nice plus, more efficient and keeps electricity cost down. Looks clean and comes as described.

## Frequently Bought Together

- Corsair RM850 (2021), RM Series, 850 Watt 80 Plus Gold Fully Modular ATX Power Supply (Triple EPS12V Connectors, Low-Noise Operation, Zero RPM Fan Mode, 105°C Capacitors, Modern Standby) White
- ASUS ROG Strix B650-A Gaming WiFi AMD Ryzen AM5 ATX motherboard, 12 + 2 power stages, DDR5, three M.2 slots, PCIe 4.0, 2.5G LAN, WiFi 6E, USB 3.2 Gen 2x2 Type-C port, and Aura Sync RGB
- AMD Ryzensets 5 7600X Processor (integrated radeon graphics, 6 cores/12 threads, 105W TDP, AM5 socket, 38MB cache, up to 5.3 GHz max boost, no cooler)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-11-08*