---
product_id: 662340985
title: "RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black"
brand: "corsair"
price: "S/.1004"
currency: PEN
in_stock: true
reviews_count: 13
category: "Corsair"
url: https://www.desertcart.pe/products/662340985-rm850x-fully-modular-low-noise-atx-power-supply-atx-3
store_origin: PE
region: Peru
---

# 850W peak power output Fully modular cabling 91% Cybenetics Gold efficiency RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black

**Brand:** corsair
**Price:** S/.1004
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your build with silent strength and future-proof finesse!

## Quick Answers

- **What is this?** RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black by corsair
- **How much does it cost?** S/.1004 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/662340985-rm850x-fully-modular-low-noise-atx-power-supply-atx-3)

## 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

- • **Tailored connectivity 🔌:** Fully modular cables mean zero clutter—connect only what your system demands for a sleek, professional setup.
- • **Whisper-quiet cooling 🌬️:** 140mm FDB fan and low-noise design keep your workspace serene, even under heavy loads.
- • **Power your ambitions with 850W ⚡:** Robust wattage to fuel high-end builds and future upgrades without compromise.
- • **Next-gen ready with PCIe 5.1 support 🚀:** Native 12V-2x6 connector ensures seamless compatibility with the latest GPUs—no adapters needed.
- • **Built to last with 10-year warranty 🛡️:** Premium Japanese capacitors and Cybenetics Gold certification guarantee efficiency and reliability for years.

## Overview

The Corsair RM850x is a fully modular, low-noise ATX 3.1 compliant power supply delivering 850W of reliable power with 91% Cybenetics Gold efficiency. Featuring native 12V-2x6 connectors for PCIe 5.1 GPU compatibility, ultra-flexible embossed cables, and a quiet 140mm FDB fan, it’s engineered for high-performance PC builds. Backed by a 10-year warranty and premium Japanese capacitors, it offers durability and efficiency tailored for demanding professionals and gamers alike.

## Description

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.

Review: Corsair remains as reliable as ever - For as long as I've been building my own computers - more than twenty-five years now - I've used Corsair power supplies. I don't necessarily think they are better than any other brand, but they've never let me down, despite all my computers generally running 24/7 in dusty, sometimes humid, sometimes 90F environments. I purchased this not because my old Corsair supply failed, but because I was installing a 5070Ti and wanted higher output as a result - the 650W would have barely been suitable. Swapping supplies was dead simple; the old one slotted in place of my old RM650x, and all I needed to do is replace the old power cable from the RX470 with the newer 12V-2x6pin. I have all Cablemod Sleeved cables and debated replacing the the new 12-pin connector with a sleeved variant, but it's so flexible and clean looking I decided the Corsair one was just fine. I've been running for about three months now without any issue. Obviously not much time on a PSU but I doubt I'll have problems. As an aside, this one has a variable fan speed knob. So far as I can tell, if you leave it off it will just run in normal, automatic mode, whereas if you use the knob it will instead always run at a certain speed. I think, I'm not totally clear on it. I just keep the knob off - my system is already very quiet and I don't think I've ever heard the PSU fan turn on even with my old supply, much less this newer one. As my mobo doesn't support PCIe 5.1, I can't comment on that part of the component. I would definitely recommend this RM850x, and would recommend Corsair in general, so far as PSUs are concerned. They seem very solid and well-made, and I've never been disappointed by them in the past.
Review: Best PSUs on the market - Corsair PSUs in my experience are always easy to work with. The cables are very easy to manage because they come with zip ties and braid organizers (if that is the right term for them). It is a very sleek design, and I really like the cables themselves. I have had no issues with performance, and I haven't had any issues with power to my PC. My estimated wattage is about 600, so this leaves me some room for upgrades if I want. You are definitely paying for less than you get with this, it is an extremely good investment in terms of what you get versus how much you pay.

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DJ1JL3MK |
| Best Sellers Rank | #51 in Computer Power Supplies |
| Brand | Corsair |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (611) |
| Date First Available | October 2, 2024 |
| Item Dimensions LxWxH | 2.3 x 3.39 x 5.91 inches |
| Item Weight | 3.9 pounds |
| Item model number | CP-9020270-NA |
| Manufacturer | Corsair |
| Product Dimensions | 2.3 x 3.39 x 5.91 inches |
| Series | RMx |

## Product Details

- **Brand:** Corsair
- **Compatible Devices:** Monitor
- **Connector Type:** ATX
- **Cooling Method:** Air
- **Form Factor:** ATX
- **Item Weight:** 3.9 Pounds
- **Item dimensions L x W x H:** 2.3 x 3.39 x 5.91 inches
- **Model Name:** RMx
- **Output Wattage:** 850 Watts
- **Wattage:** 850 watts

## Images

![RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black - Image 1](https://m.media-amazon.com/images/I/61eKAbgBZRL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Corsair remains as reliable as ever
*by A***C on December 12, 2025*

For as long as I've been building my own computers - more than twenty-five years now - I've used Corsair power supplies. I don't necessarily think they are better than any other brand, but they've never let me down, despite all my computers generally running 24/7 in dusty, sometimes humid, sometimes 90F environments. I purchased this not because my old Corsair supply failed, but because I was installing a 5070Ti and wanted higher output as a result - the 650W would have barely been suitable. Swapping supplies was dead simple; the old one slotted in place of my old RM650x, and all I needed to do is replace the old power cable from the RX470 with the newer 12V-2x6pin. I have all Cablemod Sleeved cables and debated replacing the the new 12-pin connector with a sleeved variant, but it's so flexible and clean looking I decided the Corsair one was just fine. I've been running for about three months now without any issue. Obviously not much time on a PSU but I doubt I'll have problems. As an aside, this one has a variable fan speed knob. So far as I can tell, if you leave it off it will just run in normal, automatic mode, whereas if you use the knob it will instead always run at a certain speed. I think, I'm not totally clear on it. I just keep the knob off - my system is already very quiet and I don't think I've ever heard the PSU fan turn on even with my old supply, much less this newer one. As my mobo doesn't support PCIe 5.1, I can't comment on that part of the component. I would definitely recommend this RM850x, and would recommend Corsair in general, so far as PSUs are concerned. They seem very solid and well-made, and I've never been disappointed by them in the past.

### ⭐⭐⭐⭐⭐ Best PSUs on the market
*by D***B on July 23, 2025*

Corsair PSUs in my experience are always easy to work with. The cables are very easy to manage because they come with zip ties and braid organizers (if that is the right term for them). It is a very sleek design, and I really like the cables themselves. I have had no issues with performance, and I haven't had any issues with power to my PC. My estimated wattage is about 600, so this leaves me some room for upgrades if I want. You are definitely paying for less than you get with this, it is an extremely good investment in terms of what you get versus how much you pay.

### ⭐⭐⭐⭐⭐ Stability, ease of use, quiet, and a well established design.
*by D***G on September 7, 2025*

Bought this 850 watt unit 6 months ago and just now last week installed it. Everything went smooth, my son did most of it, no problems with cables or routing or anything. I love the feature of being able to control the fan speed. This is a well built, well known PSU. It is performing as expected, which is quiet, cool and stable. Highly recommend this unit from Corsair.

## Frequently Bought Together

- 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
- 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 Peru*
*Store origin: PE*
*Last updated: 2026-03-20*