--- product_id: 361235227 title: "be quiet! TFX Power 3 300W, 80 PLUS Gold efficiency, power supply, TFX" brand: "be quiet!" price: "HK$1502" currency: HKD in_stock: true category: "Be Quiet!" url: https://www.desertcart.hk/products/361235227-be-quiet-tfx-power-3-300w-80-plus-gold-efficiency store_origin: HK region: Hong Kong --- # 300W continuous power 21.7dB ultra-quiet 80mm fan 80 PLUS Gold up to 91.7% efficiency be quiet! TFX Power 3 300W, 80 PLUS Gold efficiency, power supply, TFX **Brand:** be quiet! **Price:** HK$1502 **Availability:** ✅ In Stock ## Summary > ⚡ Power your productivity in silence and style! ## 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?** HK$1502 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/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 - • **Stable dual 12V rails:** Robust power delivery with dual 12V rails supports demanding PCIe graphics cards with rock-solid stability. - • **Whisper-quiet cooling:** Temperature-controlled 80mm fan operates at a barely audible 21.7dB, keeping your workspace distraction-free. - • **Sleek, flexible cabling:** Up to 60cm sleeved or flat black cables blend seamlessly into your setup for a clean, professional look. - • **Power that keeps you ahead:** Reliable 300W continuous output to fuel your mini or media PC without compromise. - • **Efficiency that saves and impresses:** 80 PLUS Gold certification ensures up to 91.7% energy efficiency, cutting costs and carbon footprint. ## Overview The be quiet! TFX Power 3 300W is a compact, high-efficiency power supply designed for mini and media PCs. Featuring 80 PLUS Gold certification for up to 91.7% efficiency, dual 12V rails for stable power delivery, and a whisper-quiet 80mm fan operating at just 21.7dB, it ensures reliable, silent performance. With sleek sleeved or flat black cables up to 60cm long and modern safety protections, this German-engineered PSU combines power, efficiency, and quiet operation in a compact TFX form factor. ## 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 ## 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 | | Best Sellers Rank | 9,492 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 50 in Power Supplies | | Brand Name | be quiet! | | Compatible Devices | Personal Computer | | Connector Quantity | 5 | | Connector Types | PCI Express | | Cooling Method | Air | | Customer Reviews | 4.2 4.2 out of 5 stars (39) | | EU Spare Part Availability Duration | 1 Years | | Fan Size | 80 Millimetres | | Form Factor | TFX12V | | Global Trade Identification Number | 04260052188293 | | Item Dimensions | 17.5 x 8.5 x 6.5 centimetres | | Item Weight | 1.4 Kilograms | | Manufacturer | bequiet! | | Manufacturer Part Number | BN323 | | Maximum Input Voltage | 230 Volts (AC) | | Minimum Input Voltage | 100 Volts (AC) | | Model Name | TFX | | Model Number | BN323 | | Number of Fans | 1 | | Number of Items | 1 | | Number of Packs | 1 | | Output Wattage | 300 | | Power Supply Design | Non-Modular | | Product Warranty | 3 Year Manufacturer | | System Bus Connector Type | PCI Express | | Unit Count | 1.0 count | | Upper Temperature Rating | 50 Degrees Celsius | | 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/5107StSTkvL.jpg) ## Available Options This product comes in different **Style** options. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/361235227-be-quiet-tfx-power-3-300w-80-plus-gold-efficiency](https://www.desertcart.hk/products/361235227-be-quiet-tfx-power-3-300w-80-plus-gold-efficiency) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-10-15*