---
product_id: 538763386
title: "be quiet! Pure Power 12 M 850W power supply, 80 PLUS Gold efficiency, ATX 3.1 PSU with full support for PCIe 5.1 GPUs, exceptionally silent 120mm be quiet! fan, 2 strong 12V-rails, modular cables"
brand: "be quiet!"
price: "$75.32"
currency: USD
in_stock: true
reviews_count: 13
url: https://www.desertcart.us/products/538763386-be-quiet-pure-power-12-m-850w-power-supply-80
store_origin: US
region: United States of America
---

# 850W continuous power 80 PLUS Gold 93.2% efficiency exceptionally silent 120mm fan be quiet! Pure Power 12 M 850W power supply, 80 PLUS Gold efficiency, ATX 3.1 PSU with full support for PCIe 5.1 GPUs, exceptionally silent 120mm be quiet! fan, 2 strong 12V-rails, modular cables

**Brand:** be quiet!
**Price:** $75.32
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up silently, game endlessly.

## Quick Answers

- **What is this?** be quiet! Pure Power 12 M 850W power supply, 80 PLUS Gold efficiency, ATX 3.1 PSU with full support for PCIe 5.1 GPUs, exceptionally silent 120mm be quiet! fan, 2 strong 12V-rails, modular cables by be quiet!
- **How much does it cost?** $75.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/538763386-be-quiet-pure-power-12-m-850w-power-supply-80)

## Best For

- be quiet! enthusiasts

## Why This Product

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

## Key Features

- • **Efficient & Cool:** 80 PLUS Gold certification delivers up to 93.2% efficiency, reducing power waste and keeping your system cooler.
- • **Power that Keeps Up:** 850W continuous output with dual 12V rails for rock-solid stability under heavy loads.
- • **Whisper-Quiet Cooling:** Temperature-controlled 120mm be quiet! fan ensures near-silent operation even during intense gaming or media tasks.
- • **Future-Ready Connectivity:** Native ATX 3.1 and PCIe 5.1 support with 12VHPWR connector for next-gen GPUs—stay ahead of the curve.
- • **Clean & Customizable Builds:** Full modular cabling system for effortless cable management and a sleek, professional look.

## Overview

The be quiet! Pure Power 12 M 850W is a premium ATX 3.1 power supply designed for high-performance PCs. It delivers 850 watts of continuous power through two robust 12V rails, supports the latest PCIe 5.1 GPUs with native 12VHPWR connectors, and operates with exceptional quietness thanks to its temperature-controlled 120mm fan. Certified 80 PLUS Gold for up to 93.2% efficiency, it ensures lower energy costs and cooler operation. Fully modular cables enable clean, professional builds, making it an ideal choice for gamers, creators, and professionals seeking reliable, future-proof power.

## Description

Buy

Review: Rock-Solid, Silent, and Fully Future-Proof – Excellent Quality PSU - The be quiet! Pure Power 12 M 850W is an outstanding power supply that delivers on every front. It’s whisper-quiet, even under load, thanks to the high-quality 120mm be quiet! fan. If you're building a silent or performance-focused PC, this PSU is absolutely ideal. It comes with full ATX 3.1 and PCIe 5.1 support, so it's perfect for powering the latest GPUs, including those with 12VHPWR connectors. Having two strong 12V rails means stable power delivery across demanding components, and I’ve had zero issues with voltage drops or coil whine. The modular cables are a massive bonus—easy to route and help keep the build super clean. All the cables feel premium and flexible, which makes installation a breeze. Efficiency is top-notch too, with 80 PLUS Gold certification ensuring power is used efficiently and temperatures are kept low. Overall, it’s a premium-quality PSU that’s quiet, reliable, and fully equipped for current and next-gen hardware. If you're building a high-end system and want peace of mind, this is a fantastic choice. Highly recommended!
Review: reasonably priced, quiet and reliable - I often use bequiet! PSUs in my computer builds. I've always found them to be reasonably priced, quiet and reliable. This unit, after about 9 months, is not changing my impression of the brand. I will almost certainly choose another be quiet! PSU next time I need to build a computer.

## Features

- Pure Power 12 M 850W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 93.2%. The most compelling benefit: lower power consumption, consequently lower costs, and above all a cooler as well as quieter operation. Pure Power 12 M 850W is always the correct choice for quiet systems and gaming PCs!
- Pure Power 12 M 850W is an ATX 3.1 PSU and comes with both native integration of the 12VHPWR connector for next-generation PCIe 5.1 graphics cards, and PCIe 6+2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for powerful systems of today and the ones to come.
- Pure Power 12 M offers 850W of continuous power with 2 independent 12V rails. Even if the graphics card demands excessive power for a short time: Pure Power 12 M 850W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards.
- The exceptionally silent 120mm be quiet! fan is temperature-controlled to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence, enabling best-in-class quiet functionality.
- With its LLC topology Pure Power 12 M 850W provides a best-in-class voltage regulation and efficiency. That makes it perfect for building or upgrading very quiet systems as well as gaming and media creation PCs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BT2Y1LKQ |
| Best Sellers Rank | 2,042 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 6 in Power Supplies |
| Brand Name | be quiet! |
| Compatible Devices | Personal Computer |
| Connector Quantity | 1 |
| Connector Types | ATX |
| Cooling Method | Air |
| Current Rating | 6 Amps |
| Customer Reviews | 4.7 4.7 out of 5 stars (472) |
| Fan Size | 12 Centimetres |
| Form Factor | ATX |
| Global Trade Identification Number | 04260052189498 |
| Item Dimensions | 16 x 15 x 8.6 centimetres |
| Item Weight | 1.85 Kilograms |
| Manufacturer | be quiet! |
| Manufacturer Part Number | BN344 |
| Maximum Input Voltage | 240 Volts (AC) |
| Minimum Input Voltage | 110 Volts (AC) |
| Model Name | PURE POWER 12 M 850W |
| Model Number | BN344 |
| Number of Fans | 1 |
| Output Wattage | 850 Watts |
| Power Supply Design | Full Modular |
| Product Warranty | 2 year manufacturer |
| System Bus Connector Type | ATX |
| Wattage | 850 watts |

## Product Details

- **Brand:** be quiet!
- **Compatible devices:** Personal Computer
- **Connector type:** ATX
- **Cooling method:** Air
- **Form factor:** ATX
- **Item dimensions L x W x H:** 16 x 15 x 8.6 centimetres
- **Item weight:** 1.85 Kilograms
- **Model name:** PURE POWER 12 M 850W
- **Output wattage:** 850 Watts
- **Wattage:** 850 watts

## Images

![be quiet! Pure Power 12 M 850W power supply, 80 PLUS Gold efficiency, ATX 3.1 PSU with full support for PCIe 5.1 GPUs, exceptionally silent 120mm be quiet! fan, 2 strong 12V-rails, modular cables - Image 1](https://m.media-amazon.com/images/I/71jF3IoiIPL.jpg)
![be quiet! Pure Power 12 M 850W power supply, 80 PLUS Gold efficiency, ATX 3.1 PSU with full support for PCIe 5.1 GPUs, exceptionally silent 120mm be quiet! fan, 2 strong 12V-rails, modular cables - Image 2](https://m.media-amazon.com/images/I/61mMjDOwNAL.jpg)
![be quiet! Pure Power 12 M 850W power supply, 80 PLUS Gold efficiency, ATX 3.1 PSU with full support for PCIe 5.1 GPUs, exceptionally silent 120mm be quiet! fan, 2 strong 12V-rails, modular cables - Image 3](https://m.media-amazon.com/images/I/61XB3+n7JTL.jpg)
![be quiet! Pure Power 12 M 850W power supply, 80 PLUS Gold efficiency, ATX 3.1 PSU with full support for PCIe 5.1 GPUs, exceptionally silent 120mm be quiet! fan, 2 strong 12V-rails, modular cables - Image 4](https://m.media-amazon.com/images/I/61eiPrtpOXL.jpg)
![be quiet! Pure Power 12 M 850W power supply, 80 PLUS Gold efficiency, ATX 3.1 PSU with full support for PCIe 5.1 GPUs, exceptionally silent 120mm be quiet! fan, 2 strong 12V-rails, modular cables - Image 5](https://m.media-amazon.com/images/I/719TahSXDOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Rock-Solid, Silent, and Fully Future-Proof – Excellent Quality PSU
*by M***L on 24 July 2025*

The be quiet! Pure Power 12 M 850W is an outstanding power supply that delivers on every front. It’s whisper-quiet, even under load, thanks to the high-quality 120mm be quiet! fan. If you're building a silent or performance-focused PC, this PSU is absolutely ideal. It comes with full ATX 3.1 and PCIe 5.1 support, so it's perfect for powering the latest GPUs, including those with 12VHPWR connectors. Having two strong 12V rails means stable power delivery across demanding components, and I’ve had zero issues with voltage drops or coil whine. The modular cables are a massive bonus—easy to route and help keep the build super clean. All the cables feel premium and flexible, which makes installation a breeze. Efficiency is top-notch too, with 80 PLUS Gold certification ensuring power is used efficiently and temperatures are kept low. Overall, it’s a premium-quality PSU that’s quiet, reliable, and fully equipped for current and next-gen hardware. If you're building a high-end system and want peace of mind, this is a fantastic choice. Highly recommended!

### ⭐⭐⭐⭐⭐ reasonably priced, quiet and reliable
*by E***K on 26 November 2025*

I often use bequiet! PSUs in my computer builds. I've always found them to be reasonably priced, quiet and reliable. This unit, after about 9 months, is not changing my impression of the brand. I will almost certainly choose another be quiet! PSU next time I need to build a computer.

### ⭐⭐⭐⭐⭐ Great psu
*by M***L on 17 June 2025*

Very quiet. Modular with all the cables you need. If being nit picky the place of the ports could be placed better.

## Frequently Bought Together

- be quiet! Pure Power 12 M 850W power supply, 80 PLUS Gold efficiency, ATX 3.1 PSU with full support for PCIe 5.1 GPUs, exceptionally silent 120mm be quiet! fan, 2 strong 12V-rails, modular cables
- AMD Ryzensets 7 7800X3D Processor with 3D V Cache technology (integrated Radeon Graphics, 8 cores/16 threads, 120W TDP, AM5 Socket, 104MB cache, up to 5.0 GHz max boost, no cooler)
- Samsung 990 PRO NVMe M.2 SSD, 2 TB, PCIe 4.0, 7,450 MB/s read, 6,900 MB/s write, Internal SSD, For gaming and video editing, MZ-V9P2T0BW

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-27*