---
product_id: 361235227
title: "be quiet! TFX Power 3 300W, 80 PLUS Gold efficiency, power supply, TFX"
brand: "be quiet!"
price: "C$15762"
currency: NIO
in_stock: true
reviews_count: 13
category: "Be Quiet!"
url: https://www.desertcart.ni/products/361235227-be-quiet-tfx-power-3-300w-80-plus-gold-efficiency
store_origin: NI
region: Nicaragua
---

# 300W continuous power 21.7dB ultra-quiet fan 80 PLUS Gold efficiency (up to 91.7%) be quiet! TFX Power 3 300W, 80 PLUS Gold efficiency, power supply, TFX

**Brand:** be quiet!
**Price:** C$15762
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your mini setup with silent efficiency and pro-grade stability!

## Quick Answers

- **What is this?** be quiet! TFX Power 3 300W, 80 PLUS Gold efficiency, power supply, TFX by be quiet!
- **How much does it cost?** C$15762 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/361235227-be-quiet-tfx-power-3-300w-80-plus-gold-efficiency)

## 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

- • **Silent but Strong:** Temperature-controlled 80mm fan keeps noise under 22dB—work or game in peace.
- • **Power Meets Precision:** Reliable 300W output to fuel your compact PC without compromise.
- • **Stable Dual 12V Rails:** Robust power delivery ensures smooth PCIe graphics card support for your mini build.
- • **Gold Standard Efficiency:** Up to 91.7% energy efficiency means lower bills and a greener footprint.
- • **Sleek & Flexible Cabling:** 60cm sleeved or flat black cables for clean, professional cable management.

## Overview

The be quiet! TFX Power 3 300W is a compact, high-efficiency power supply designed for mini and media PCs. Certified 80 PLUS Gold with up to 91.7% efficiency, it delivers stable 300W continuous power via dual 12V rails, supports PCIe graphics cards, and operates quietly with a temperature-controlled 80mm fan at just 21.7dB. Its sleek sleeved or flat black cables up to 60cm enable clean builds, backed by German engineering and a 3-year warranty.

## Description

TFX Power 3 300W Gold: the upgraded be quiet! high-efficiency PSU for mini and media PCs with 80 PLUS® Gold certification and PCIe graphics card support. ● 80 PLUS® Gold efficiency (up to 91.7%) for lower power consumption ● Strong dual 12V-rails for high stability and PCIe graphics card support ● 300W of continuous power ● High-quality temperature-controlled 80mm fan for low-noise operation of max. 21.7dB(A) ● Sleeved or flat black cables up to 60cm long ● Meets the latest safety and efficiency requirements ● Modern safety protections reliably defend against numerous failures ● Standby draw less than 0.17 watts ●Three-year manufacturer’s warranty ● Product conception, design and quality control in Germany

Review: Good Small SFX - Comes with 8pin PCIE power for putting Low Profile GFX card in small case for LAN parties.
Review: Works - Really excellent SFX psu. Pretty quiet as well. Impressed

## Features

- 80 PLUS Gold efficiency (up to 91.7%) for lower power consumption
- Strong dual 12V-rails for high stability and PCIe graphics card support
- 300W of continuous power
- High-quality temperature-controlled 80mm fan for low-noise operation of max. 21.7dB(A)
- Sleeved or flat black cables up to 60cm long

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0937HPKFT |
| Are Batteries Included | No |
| Best Sellers Rank | 28,494 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 248 in Power Supplies |
| Brand | be quiet! |
| Colour | Black |
| Computer Memory Type | DIMM |
| Customer Reviews | 4.2 4.2 out of 5 stars (157) |
| Date First Available | 22 April 2021 |
| Form Factor | TFX12V |
| Guaranteed software updates until | unknown |
| Item Weight | 1.4 kg |
| Item model number | BN323 |
| Manufacturer | bequiet! |
| Operating System | Windows |
| Product Dimensions | 17.5 x 8.5 x 6.5 cm; 1.4 kg |
| Series | TFX |
| Wattage | 300 watts |

## Product Details

- **Brand:** be quiet!
- **Compatible devices:** Personal Computer
- **Connector type:** PCI Express
- **Cooling method:** Air
- **Form factor:** TFX12V
- **Item dimensions L x W x H:** 17.5 x 8.5 x 6.5 centimetres
- **Item weight:** 1.4 Kilograms
- **Model name:** TFX
- **Output wattage:** 300
- **Wattage:** 300 watts

## Images

![be quiet! TFX Power 3 300W, 80 PLUS Gold efficiency, power supply, TFX - Image 1](https://m.media-amazon.com/images/I/41LjJrKqmGL.jpg)
![be quiet! TFX Power 3 300W, 80 PLUS Gold efficiency, power supply, TFX - Image 2](https://m.media-amazon.com/images/I/51BZC3hitKL.jpg)
![be quiet! TFX Power 3 300W, 80 PLUS Gold efficiency, power supply, TFX - Image 3](https://m.media-amazon.com/images/I/51G9xUPjVOL.jpg)
![be quiet! TFX Power 3 300W, 80 PLUS Gold efficiency, power supply, TFX - Image 4](https://m.media-amazon.com/images/I/51rvbYM0EkL.jpg)
![be quiet! TFX Power 3 300W, 80 PLUS Gold efficiency, power supply, TFX - Image 5](https://m.media-amazon.com/images/I/51xk4H9iwuL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Small SFX
*by D***E on 21 July 2024*

Comes with 8pin PCIE power for putting Low Profile GFX card in small case for LAN parties.

### ⭐⭐⭐⭐⭐ Works
*by T***A on 24 May 2024*

Really excellent SFX psu. Pretty quiet as well. Impressed

### ⭐⭐⭐⭐⭐ Very quiet
*by P***W on 26 April 2025*

Excellent and very very quiet

## Frequently Bought Together

- TFX POWER 3
- 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 9800X3D 8-Core, 16-Thread Desktop Processor

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**Shop now:** [https://www.desertcart.ni/products/361235227-be-quiet-tfx-power-3-300w-80-plus-gold-efficiency](https://www.desertcart.ni/products/361235227-be-quiet-tfx-power-3-300w-80-plus-gold-efficiency)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-03*