---
product_id: 526499631
title: "be quiet! Pure Power 12 M 650W PSU | ATX 3.0 | 80 Plus® Gold | Modular Power Supply | for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors | 12VHPWR Cable Included | Silent 120mm be quiet! Fan - BN503"
brand: "be quiet!"
price: "₨126695"
currency: LKR
in_stock: true
reviews_count: 8
url: https://www.desertcart.lk/products/526499631-be-quiet-pure-power-12-m-650w-psu-atx-3
store_origin: LK
region: Sri Lanka
---

# 650W continuous power Silent 120mm fan Fully modular cables be quiet! Pure Power 12 M 650W PSU | ATX 3.0 | 80 Plus® Gold | Modular Power Supply | for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors | 12VHPWR Cable Included | Silent 120mm be quiet! Fan - BN503

**Brand:** be quiet!
**Price:** ₨126695
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up silently, game on endlessly!

## Quick Answers

- **What is this?** be quiet! Pure Power 12 M 650W PSU | ATX 3.0 | 80 Plus® Gold | Modular Power Supply | for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors | 12VHPWR Cable Included | Silent 120mm be quiet! Fan - BN503 by be quiet!
- **How much does it cost?** ₨126695 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/526499631-be-quiet-pure-power-12-m-650w-psu-atx-3)

## 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

- • **Power Your Future:** 650W with ATX 3.0 & PCIe 5.1 support for next-gen GPUs
- • **Clean & Cool Builds:** Fully modular cables for clutter-free, airflow-optimized setups
- • **Rock-Solid Stability:** Dual 12V rails handle spikes up to 2000W without faltering
- • **Efficiency That Saves:** Up to 93% efficiency with 80 Plus Gold certification cuts energy costs
- • **Whisper-Quiet Performance:** Temperature-controlled 120mm fan keeps noise near zero

## Overview

The be quiet! Pure Power 12 M 650W PSU delivers high-efficiency 80 Plus Gold certified power with future-proof ATX 3.0 and PCIe 5.1 compatibility. Its silent 120mm fan and fully modular design ensure a quiet, clean, and stable power supply ideal for demanding gaming and professional builds.

## Description

NA

## Features

- Exceptionally Efficient & Cost-Saving - 80 Plus Gold certified be quiet! 650W power supply with up to 93.0% efficiency, reducing energy waste and operating costs. Generates less heat, prolonging component lifespan and ensuring cooler operation for high-performance PCs.
- Future-Proof with ATX 3.0 & PCIe 5.1 Support - PSU 650W gold computer power supplies designed for next-gen GPUs and gaming systems, featuring PCIe 5. 12V-2x6 600W connector and 4x PCIe 6+2 connectors. Ensures seamless compatibility with current and upcoming graphics cards.
- Unmatched Power Stability & Reliability - Provides 650W continuous power with dual 12V rails for exceptional stability. Handles transient power spikes up to 2000W, delivering uninterrupted performance for demanding gaming and workstation setups.
- Ultra-Quiet Operation with 120mm be quiet! Fan - This 650 Watt power supply is silence-optimized cooling with temperature-controlled speed adjustments and airflow-optimized blades, ensuring near-silent performance even under heavy loads. Ideal for noise-conscious users.
- Fully Modular Cables for a Clean Build - Enjoy easy cable management and improved airfloW with fully modular cabling. Removes clutter, enhances cooling efficiency, and simplifies installation for clean and professional PC builds.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | be quiet! |
| Series | BN503 |
| Item model number | BN503 |
| Item Weight | 6.15 pounds |
| Product Dimensions | 0.1 x 0.1 x 0.1 inches |
| Item Dimensions  LxWxH | 0.1 x 0.1 x 0.1 inches |
| Manufacturer | be quiet! |
| ASIN | B0BVYGNLM7 |
| Date First Available | February 16, 2023 |

## Product Details

- **Model Name:** BN503
- **Brand:** be quiet!
- **Compatible Devices:** Gaming Console
- **Connector Type:** ATX
- **Output Wattage:** 1000
- **Form Factor:** ATX
- **Wattage:** 650 watts
- **Cooling Method:** Air
- **Item dimensions L x W x H:** 0.1 x 0.1 x 0.1 inches
- **Item Weight:** 2790 Grams

## Images

![be quiet! Pure Power 12 M 650W PSU | ATX 3.0 | 80 Plus® Gold | Modular Power Supply | for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors | 12VHPWR Cable Included | Silent 120mm be quiet! Fan - BN503 - Image 1](https://m.media-amazon.com/images/I/71iuliYl7uL.jpg)
![be quiet! Pure Power 12 M 650W PSU | ATX 3.0 | 80 Plus® Gold | Modular Power Supply | for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors | 12VHPWR Cable Included | Silent 120mm be quiet! Fan - BN503 - Image 2](https://m.media-amazon.com/images/I/71Osgj3eBcL.jpg)
![be quiet! Pure Power 12 M 650W PSU | ATX 3.0 | 80 Plus® Gold | Modular Power Supply | for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors | 12VHPWR Cable Included | Silent 120mm be quiet! Fan - BN503 - Image 3](https://m.media-amazon.com/images/I/716v36bYDuL.jpg)
![be quiet! Pure Power 12 M 650W PSU | ATX 3.0 | 80 Plus® Gold | Modular Power Supply | for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors | 12VHPWR Cable Included | Silent 120mm be quiet! Fan - BN503 - Image 4](https://m.media-amazon.com/images/I/71j60Yiz97L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ In an i7 14700 | ASRock Riptide Z790 WiFi, Fairly Decked Out Computer
*by C***C on May 22, 2024*

It's been 12 years since I built myself a new machine, so I felt like I deserved to do it right. After all kinds of research and shopping, I decided on this P/S. (Pure Power 12 M 750W, ATX 3.0, 80 Plus Gold.) I wanted gold, I wanted modular, and I wanted a hundred or two extra watts. I had some trouble figuring out which power connectors went where on the motherboard. (Two 8 pin plugs on the motherboard and one 8 pin connector on the video card.) I called their tech support, it got answered almost immediately by a nice lady who, to my surprise, knew exactly what was going on once I told her which power supply I had! That's not as easy as it sounds, since, all the different Pure Power supplies come with different sets of (modular) cables; she had a lot to remember! We figured it out in no time and she kept me from potentially plugging one of the motherboard 8 pin connectors into the video card and vice versa. ASRock and Pure Power had totally different names for them. One of the most pleasant tech support calls I've ever been on!So, this power supply has been working in this machine for over a month. I've had the machine stressed on purpose, testing with CPU Z and and stressed incidentally, up-scaling (from 480P to 720P) and converting (from MP4 to MKV H265) video files. This was a real pleasure! Files that took my old machine over an hour, took 4-6 minutes on this one! Never any trouble, let alone with the power supply. I tried to find the "knee" in the performance to price ratio curve for all these parts, and if I did it anywhere, I did it with this power supply! The computer has 48 gigabytes (2X24) of G.Skill Ripjaws memory. This machine also has 5 M2 SSD's (One is PCI 5), a SATA 3 SSD, and two 6 terabyte (left over from NAS's) SATA 3 Seagate Iron Wolf HDD's. For video, it's got a used Zotac 1660 6GB GDDR5 card. I'm not a gamer; more of a productivity guy, but this machine's pretty decked out and it's faaast, and there's never any kind of a problem with this power supply! Oh! Yea! No LED's. The motherboard has them and has an LED controller, but I turned them off. The fans' LED's aren't plugged in. But it has two PWM fans for the processor cooler and 6 PWM case fans - the smallest is 120 mm.It boots in under 15 seconds, with all kinds of stuff running, and the cooling fans also crank up as it's booting, as it shuts down, for a second, and once in awhile for no apparent reason. All the other fans are louder (only when it's stressed) than the power supply fan, which I never even hear.I recommend it completely. It's well-built, competent, reliable, (so far; you never know for sure), and quiet, and it has great tech support if you need it. It's beefy and heavy, but not monstrously huge. It's very well priced for a "serious" power supply. Perfect! It's in a Phanteks Enthoo case with plenty of room, so the [modular] wiring is all well laid out inside. I found the included wiring harnesses long enough and sufficient for this build. This power supply finished off a very nice machine! I can't imagine needing a bigger power supply than this unless you've got a gamer-style, several thousand dollar video card or something.

### ⭐⭐⭐⭐⭐ Good PSU for any purpose.
*by M***R on May 27, 2025*

This PSU may not be the best value, but for the wattage is offers, which can technically handle borderline 1000w for the 850w model, it surely is worth it, the cables are a bit stiff, making management relatively difficult, but it isn't by any means bad.

### ⭐⭐⭐⭐⭐ Fantastic and Quiet 850W PSU
*by R***B on May 19, 2025*

This Be Quiet! Pure Power 850W is a fantastic PSU for my new build.I don't like unnecessarily noisy PC fans, and this Be Quiet! PSU is very, very quiet.I love modular power supplies like this one because there are no extra connectors you have to try and hide. You only connect exactly what you need.I'm very happy with this purchase.

## Frequently Bought Together

- Pure Power 12 M 650W | ATX 3.0 | 80 Plus® Gold | Modular Power Supply | for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors | 12VHPWR Cable Included | Silent 120mm be quiet! Fan - BN503
- AMD Ryzen 5 7600X 6-Core, 12-Thread Unlocked Desktop Processor
- Thermalright Peerless Assassin 120 SE CPU Cooler, 6 Heat Pipes AGHP Technology, Dual 120mm PWM Fans, 1550RPM Speed, for AMD:AM4 AM5/Intel LGA 1700/1150/1151/1200,PC Cooler

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-09*