---
product_id: 205449729
title: "be quiet! Straight Power 11 Platinum 850W, fully modular, 80 PLUS Platinum, power supply"
brand: "be quiet!"
price: "B/.156"
currency: PAB
in_stock: false
reviews_count: 13
url: https://www.desertcart.com.pa/products/205449729-be-quiet-straight-power-11-platinum-850w-fully-modular-80
store_origin: PA
region: Panama
---

# 850W high power output 80 PLUS Platinum up to 94% efficiency Silent Wings 3 fan for near-silent operation be quiet! Straight Power 11 Platinum 850W, fully modular, 80 PLUS Platinum, power supply

**Brand:** be quiet!
**Price:** B/.156
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power up silently, perform endlessly.

## Quick Answers

- **What is this?** be quiet! Straight Power 11 Platinum 850W, fully modular, 80 PLUS Platinum, power supply by be quiet!
- **How much does it cost?** B/.156 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/205449729-be-quiet-straight-power-11-platinum-850w-fully-modular-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

- • **Whisper-Quiet Powerhouse:** Experience ultra-silent performance with the advanced Silent Wings 3 135mm fan, perfect for noise-conscious professionals.
- • **Fully Modular Flexibility:** Customize your build effortlessly with modular cables that keep your workspace clean and airflow optimized.
- • **Platinum Efficiency, Maximum Savings:** Up to 94% energy efficiency reduces your carbon footprint and electricity bills without compromising power.
- • **Built to Last with Premium Components:** Japanese 105°C-rated capacitors ensure rock-solid stability and long-term reliability under heavy loads.
- • **Multi-GPU Ready for Future-Proof Builds:** Supports up to four PCI-Express connectors, empowering your high-performance gaming or creative workstation.

## Overview

The be quiet! Straight Power 11 Platinum 850W is a fully modular, high-efficiency power supply delivering up to 94% energy efficiency with 80 PLUS Platinum certification. Equipped with a virtually inaudible Silent Wings 3 135mm fan and premium Japanese capacitors, it ensures stable, reliable power for demanding multi-GPU setups while maintaining whisper-quiet operation. Designed for professionals who value performance, longevity, and a clean build environment.

## Description

From the manufacturer World Class Quiet and Efficiency Virtually inaudible operation and outstanding efficiency 80 Plus Platinum Certified Straight Power 11 Platinum 850W is certified with 80 PLUS Platinum efficiency, reaching up to 94%. This provides lots of benefits for your high-end system, including less power consumption and an overall cooler and quieter operation. The standby drain is below 0.1 watts. Silent Wings 3 Fan The high-end Silent Wings 3 fan delivers best-of-class airflow yet produces very little noise. This is thanks to its unique, optimised fan blade design along with an advanced fluid-dynamic bearing and 6-pole fan motor that largely eliminates operational noise, has a super-long life and minimal power consumption. Funnel-Shaped Fan Opening The fan inlet of the Straight Power 11 Platinum is funnel-shaped. It causes an increased throughput of air which benefits to a higher cooling performance. State-of-the-art technology Wire-Free Design Inside the PSU An absolute innovation: The Straight Power 11 Platinum is wire-free on the DC side inside the PSU body. This results in improved cooling airflow and less signal disturbance, simply because of a lack of wiring, and ultimately pushes the lifetimes of the components to a maximum. Modular Cables Thanks to the modular cables, all cables that serve no purpose in the system are left out. For this reason, systems always appear very tidy. At the same time installation is performed much more conveniently. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures prevail inside the case. State-Of-The-Art Technology Experience the most technologically advanced power supply be quiet! has ever built! Using an advanced full bridge, LLC and Synchronous Rectifier (SR) technology it provides unmatched signal stability and unbeatable power efficiency. The DC-to-DC conversion for tight voltage regulation, even under heavy cross-loading conditions ensures reliable operation for the next generation of processors and graphics cards. High-end components Japanese 105° Capacitors Only the best components are used in Straight Power 11 Platinum. That is why we have built only high-quality Japanese capacitors into the PSU chassis. They are rated to 105°C, ensuring stability, reliability and a long operating life. General Data

Review: Be Quiet Straight Power 11 1000W - it is REALLY quiet! - Upgraded processor from Ryzen 3600 > 5900X and have an ASUS TUF 3070 OC as the GPU. Had been using a Be Quiet 600W PSU with no problem but it was both only 80+ Bronze and power limiting. I like Corsair and the reviews looked good. Installation was a little bit tricky as the PSU is bigger than many other 1000W but not an issue. It came with 2 less cables than the manual stated. However, no matter how many checks on hardware and software, there was a significant power coil whine. I use a Corsair 275Q quiet case and want a quiet but powerful pc. The HX1000 was very much louder under 400-500W load than the 600W PSU. There was also a dreadful power coil whine that on researching, is quite common. Have replaced with a Be Quiet Straight Power 11 1000W and this is almost completely silent at idle and barely audible at full gaming. Really can't say more than if you want a quiet pc, these PSUs will do the trick.
Review: Very quiet and outstanding build quality with very good cables - The main thing that stands out to me with this PSU is the incredible build quality, the cables are built amazingly and come in mass! Easy to install, comes with screws too. Barely any noise at all. Would recommend this to anyone looking for an efficient and reliable PSU.

## Features

- 80 PLUS Platinum efficiency (up to 94%)
- Virtually inaudible Silent Wings 3 135mm fan
- Funnel-shaped fan opening of the PSU case for high airflow intake
- Wire-free inside the PSU on the DC side for enhanced cooling and longevity
- Modular cables for maximum build flexibility
- Powerful multi-GPU support with four PCI-Express connectors
- Japanese 105°C-rated capacitors ensure stability and reliability
- ErP and Energy Star 7.0 ready

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083T9STQS |
| Brand | be quiet! |
| Brand Name | be quiet! |
| Compatible Devices | Personal Computer |
| Compatible devices | Personal Computer |
| Connector Types | PCI Express |
| Connector type | PCI Express |
| Cooling Method | Air |
| Customer Reviews | 4.7 out of 5 stars 1,969 Reviews |
| Fan Size | 170 Millimetres |
| Form Factor | ATX |
| Form factor | ATX |
| Global Trade Identification Number | 04260052187395 |
| Item Dimensions | 17 x 15 x 8.6 centimetres |
| Item Weight | 1840 Grams |
| Manufacturer | Be Quiet! |
| Manufacturer Part Number | BN308 |
| Maximum Input Voltage | 230 Volts (AC) |
| Minimum Input Voltage | 100 Volts (AC) |
| Model Name | Capacitor |
| Model Number | BN308 |
| Model name | Capacitor |
| Number of Fans | 1 |
| Output Wattage | 850 |
| Output wattage | 850 |
| Power Supply Design | Internal |
| Product Warranty | 5 Year Manufacturer |
| System Bus Connector Type | 2 Pin |
| Unit Count | 1.0 count |
| Wattage | 850 watts |

## Product Details

- **Brand:** be quiet!
- **Compatible devices:** Personal Computer
- **Connector type:** PCI Express
- **Cooling method:** Air
- **Form factor:** ATX
- **Item dimensions L x W x H:** 17 x 15 x 8.6 centimetres
- **Item weight:** 1840 Grams
- **Model name:** Capacitor
- **Output wattage:** 850
- **Wattage:** 850 watts

## Images

![be quiet! Straight Power 11 Platinum 850W, fully modular, 80 PLUS Platinum, power supply - Image 1](https://m.media-amazon.com/images/I/81dWXej4QsL.jpg)
![be quiet! Straight Power 11 Platinum 850W, fully modular, 80 PLUS Platinum, power supply - Image 2](https://m.media-amazon.com/images/I/81xmuJzYh5L.jpg)
![be quiet! Straight Power 11 Platinum 850W, fully modular, 80 PLUS Platinum, power supply - Image 3](https://m.media-amazon.com/images/I/81KGfeo8BbL.jpg)
![be quiet! Straight Power 11 Platinum 850W, fully modular, 80 PLUS Platinum, power supply - Image 4](https://m.media-amazon.com/images/I/710HO4i829S.jpg)
![be quiet! Straight Power 11 Platinum 850W, fully modular, 80 PLUS Platinum, power supply - Image 5](https://m.media-amazon.com/images/I/81o1R92INxS.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Be Quiet Straight Power 11 1000W - it is REALLY quiet!
*by A***H on 2 May 2022*

Upgraded processor from Ryzen 3600 > 5900X and have an ASUS TUF 3070 OC as the GPU. Had been using a Be Quiet 600W PSU with no problem but it was both only 80+ Bronze and power limiting. I like Corsair and the reviews looked good. Installation was a little bit tricky as the PSU is bigger than many other 1000W but not an issue. It came with 2 less cables than the manual stated. However, no matter how many checks on hardware and software, there was a significant power coil whine. I use a Corsair 275Q quiet case and want a quiet but powerful pc. The HX1000 was very much louder under 400-500W load than the 600W PSU. There was also a dreadful power coil whine that on researching, is quite common. Have replaced with a Be Quiet Straight Power 11 1000W and this is almost completely silent at idle and barely audible at full gaming. Really can't say more than if you want a quiet pc, these PSUs will do the trick.

### ⭐⭐⭐⭐⭐ Very quiet and outstanding build quality with very good cables
*by I***D on 4 July 2022*

The main thing that stands out to me with this PSU is the incredible build quality, the cables are built amazingly and come in mass! Easy to install, comes with screws too. Barely any noise at all. Would recommend this to anyone looking for an efficient and reliable PSU.

### ⭐⭐⭐⭐⭐ Best brand in the PSU market
*by G***M on 21 August 2022*

Couldn’t be happier. A great upgrade to my old BeQuiet PSU from 2014. Again this one is super silent and, best of all, absolutely zero coil whine unlike many of the big brands. Throughly recommend BQ every time. Powers my RTX 30 and 12th gen setup brilliantly.

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-07-30*