---
product_id: 34815715
title: "Silverstone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3)"
brand: "silverstone"
price: "€ 198.20"
currency: EUR
in_stock: false
reviews_count: 12
url: https://www.desertcart.sk/products/34815715-silverstone-technology-450w-sfx-form-factor-80-plus-bronze-power
store_origin: SK
region: Slovakia
---

# 450W continuous power output Silent 92mm fan, near-silent operation 50℃ operating temp rating Silverstone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3)

**Brand:** silverstone
**Price:** € 198.20
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power your compact rig with silent strength and efficiency!

## Quick Answers

- **What is this?** Silverstone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3) by silverstone
- **How much does it cost?** € 198.20 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/34815715-silverstone-technology-450w-sfx-form-factor-80-plus-bronze-power)

## Best For

- silverstone enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Fit:** Supports both SFX and ATX chassis with included adapter bracket—flexibility meets performance.
- • **Enthusiast Ready:** Single +12V rail and PCI-E connectors support multi-GPU builds in a small form factor.
- • **Compact Powerhouse:** 450W continuous output designed for 24/7 reliability even under heat stress.
- • **Efficiency That Saves:** 80 Plus Bronze certification ensures up to 85% energy efficiency, cutting waste and bills.
- • **Whisper-Quiet Cooling:** Temperature-controlled 92mm fan stays silent until needed, perfect for noise-sensitive setups.

## Overview

The Silverstone ST45SF-V3 is a 450W SFX power supply delivering reliable, continuous power with 80 Plus Bronze efficiency. Designed for small form factor and ATX cases (with bracket), it features a silent, temperature-controlled 92mm fan and a robust single +12V rail, making it ideal for quiet, high-performance compact PC builds.

## Description

After successfully revolutionizing both HTPC and SFF market segments with innovative chassis designs, silverstone engineers continue their push for advancement in these categories by releasing a true upgrade-worthy small form factor power supply, the st45sf. This SFX unit is compatible not only with chassis that use SFX power supplies but also in smaller ATX chassis with the included adapter bracket. Despite its small size, the st45sf has features that one would expect from an Elite ATX power supply such as 80 plus Bronze level of efficiency, temperature controlled fan, 50℃ temperature rating, and reliability for 24/7 operation. Enthusiasts oriented features are also present with single +12V rail and 8pin/6pin PCI-E connectors to fully support multi-GPU systems. For SFF users and for silverstone, the st45sf is more than just an upgrade, it is an important milestone for the DIY desktop computer.

Review: A very nice and quiet power supply for small to moderate sized systems - I chose this for my compact Silverstone NAS which requires a smaller SFX supply, and it was a good decision. A priority for me is a quiet supply and this one delivers by using a load controlled fan that hasn't spun at all on my system yet. Admittedly, its a new build and I've only done some computationally light work so far but since this system will be used primarily as a HTPC, I don't think it's going to present any electrical of consequence most of the time so I don't expect the fan to spin much. This supply has some nice features as well such as a PCIe cable for video cards (not all SFX supplies include this) plus an ATX adapter plate for use in larger cases. Another small, but nice benefit are the thumb screws in addition the to normal PS mount screws that can be used to secure side panels on most cases. As you might expect in a moderately sized supply like this it doesn't have a ton of molex or SATA connectors but it should be enough for the smaller systems this type of supply would be typically used with.
Review: Quietest Power Supply I EVER experienced! - I first heard about this small compact PSU when I called Silverstone to ask about their Milo 6 case. I initially told the tech I wanted to use a super-tiny Pico Power Supply for quiet operation and if they had a cover plate for the PSU hole. Mind you, I already had the silent Titan low profile cooler to replace the Intel stock cooler, but my cheap PSU from a ravaged Xion case was disappointing. They suggested I buy their silent Tek 300w SFX PSU. The payoff was superb! The fan inside the PSU does not turn on unless there is a heat build up. Even when the fan does goes on, you cannot hear it unless you are 12 inches away. Do not be put off by the price of this unit... it's worth every penny.. as that every other SFX sized PSU I have used has been NOISY and low quality. Reminder: this is an SFX PSU, not a standard ATX size.

## Features

- Supports standard SFX form Factor and ATX via included bracket
- 450W continuous power output at 50℃ operating temperature rated for 24/7 operation
- 80 plus Bronze level efficiency (82%85% efficiency at 20%100% loading)
- Class-leading single +12V rail
- Silent running 92mm fan (V3.0)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01LZFMKCI |
| Best Sellers Rank | #43,302 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #5,809 in Laptop Chargers & Adapters |
| Brand | SilverStone |
| Built-In Media | SFX to ATX Bracket, ST45SF Power Supply, Screws, User Manual |
| Compatible Devices | PC |
| Connector Type Used on Cable | atx,pci-e |
| Cooling Method | Air |
| Customer Reviews | 4.4 4.4 out of 5 stars (271) |
| Fan Size | 92 Millimeters |
| Form Factor | Atx,Sfx |
| Global Trade Identification Number | 00844761014292 |
| Item Dimensions | 4.92 x 3.94 x 2.5 inches |
| Item Type Name | 450 Watt SFX 80 Plus Bronze PSU Fixed Cables ST45SF-V3 |
| Item Weight | 2.43 Pounds |
| Manufacturer | Silverstone |
| Mfr Part Number | ST45SF-V3 |
| Minimum Input Voltage | 100 Volts |
| Model Name | PS-ST45SF-V3 |
| Model Number | ST45SF-V3 |
| Number of Fans | 1 |
| Output Wattage | 450 Watts |
| Power Supply Design | Internal |
| System Bus Connector Type | 8pin/6pin |
| UPC | 844761014292 |
| Warranty Description | 3 Years Parts and Labor |
| Wattage | 450 watts |

## Product Details

- **Brand:** SilverStone
- **Compatible Devices:** PC
- **Connector Type:** atx,pci-e
- **Cooling Method:** Air
- **Form Factor:** Atx,Sfx
- **Item Weight:** 2.43 Pounds
- **Item dimensions L x W x H:** 4.92 x 3.94 x 2.5 inches
- **Model Name:** PS-ST45SF-V3
- **Output Wattage:** 450 Watts
- **Wattage:** 450 watts

## Images

![Silverstone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3) - Image 1](https://m.media-amazon.com/images/I/71aHuSNd7uL.jpg)
![Silverstone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3) - Image 2](https://m.media-amazon.com/images/I/81p0RrKLWLL.jpg)
![Silverstone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3) - Image 3](https://m.media-amazon.com/images/I/715vSkHmS+L.jpg)
![Silverstone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3) - Image 4](https://m.media-amazon.com/images/I/71KCNTgCy0L.jpg)
![Silverstone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3) - Image 5](https://m.media-amazon.com/images/I/815B6f12XbL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ A very nice and quiet power supply for small to moderate sized systems
*by E***. on July 26, 2014*

I chose this for my compact Silverstone NAS which requires a smaller SFX supply, and it was a good decision. A priority for me is a quiet supply and this one delivers by using a load controlled fan that hasn't spun at all on my system yet. Admittedly, its a new build and I've only done some computationally light work so far but since this system will be used primarily as a HTPC, I don't think it's going to present any electrical of consequence most of the time so I don't expect the fan to spin much. This supply has some nice features as well such as a PCIe cable for video cards (not all SFX supplies include this) plus an ATX adapter plate for use in larger cases. Another small, but nice benefit are the thumb screws in addition the to normal PS mount screws that can be used to secure side panels on most cases. As you might expect in a moderately sized supply like this it doesn't have a ton of molex or SATA connectors but it should be enough for the smaller systems this type of supply would be typically used with.

### ⭐⭐⭐⭐⭐ Quietest Power Supply I EVER experienced!
*by T***U on December 10, 2014*

I first heard about this small compact PSU when I called Silverstone to ask about their Milo 6 case. I initially told the tech I wanted to use a super-tiny Pico Power Supply for quiet operation and if they had a cover plate for the PSU hole. Mind you, I already had the silent Titan low profile cooler to replace the Intel stock cooler, but my cheap PSU from a ravaged Xion case was disappointing. They suggested I buy their silent Tek 300w SFX PSU. The payoff was superb! The fan inside the PSU does not turn on unless there is a heat build up. Even when the fan does goes on, you cannot hear it unless you are 12 inches away. Do not be put off by the price of this unit... it's worth every penny.. as that every other SFX sized PSU I have used has been NOISY and low quality. Reminder: this is an SFX PSU, not a standard ATX size.

### ⭐⭐⭐⭐ Great, even in a non-SFX build (see details). Recommended
*by D***R on February 11, 2020*

I'll be honest... I really had no intention of buying a SilverStone Technology 300W SFX Form Factor 80 Plus Bronze Power Supply with +12V Single Rail, Active PFC (ST30SF). The thing is that I was putting together my first mini-ITX build since the Via Eden days. While I wanted a small system, I specifically bought a Cooler Master Elite 110 RC-110-KKN2 so I could use a standard size PSU. The problem was that the CPU placement on the motherboard, combined with the height of the Ryzen 5 3400G's OEM Wraith Spire cooler, and the PSU placement in the case resulted in a pretty small gap between the CPU fan and the PSU. Maybe it would have been fine, but I really just didn't like the idea of half of my heatsink not being able to efficiently shed heat. So, I decided to swap out the OEM cooling unit with a SilverStone Technology RL-KR01. That solved my clearance issue, but it was WAY louder than the stock unit, which didn't really work for me. After a little digging, I decided to get the SilverStone Technology ST30SF, and use the included adapter plate. Theoretically, that would let me go back to the stock cooler. I've had proprietary PSUs before, but not very often... stuff like Shuttles, or microATX builds. I was only vaguely aware of the SFX form factor, but was excited when I found out about adapter plates you could use for a regular ATX PSU mount. The ST30SF wasn't the cheapest option, but it was the lowest cost unit that had a brand I trusted and had the adapter bracket (otherwise you'd have to spend like $10 to get one). As you might imagine, the unit is tiny. The bracket centers the unit within the ATX cavity, so it's not necessarily optimized for clearance, but that wasn't an issue for me. As my build is an R5 3400G, 32GB of RAM, and an NVMe drive on an x4 card, it really doesn't need anything bigger than 300W (it doesn't even need that, really). The build quality of the PSU appears to be up to the level I expect from Silverstone, despite being a lower-priced product. The adapter plate is grey/silver, so you may want to hit it with some spray paint, if you care about aesthetics. The 24 and 8-pin mobo power cables are long enough for whatever small case you may be using. In operation, the PSU can be completely silent. There was a sash-type notice on the power supply, warning the user that the PSU fan doesn't always spin, as it's temperature controlled. Even when it's spinning, the fan isn't that loud. It is a little weird for the sound floor to change that much for a running computer, though. In operation, I didn't have any stability problems, and I had solid 3.3, 5, and 12v line voltages. If you know you're going to stay within a 300w power budget, this power supply is a great choice. It's solid and quiet. The only thing that's kind of janky is the color of the adapter plate, which I'm guessing most purchasers won't use, anyway. Recommended.

## Frequently Bought Together

- SilverStone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3)
- JONSBO N3 Mini-ITX NAS PC Chassis, ITX Computer Case, 8HHD+1-SSDD isk Bays NAS Mini Aluminum with Steel Plate Case, Built-in 2x10cm Fan, Power Support: SFX105mm, Support 130mm CPU Cooler
- Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)

---

## 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.sk/products/34815715-silverstone-technology-450w-sfx-form-factor-80-plus-bronze-power](https://www.desertcart.sk/products/34815715-silverstone-technology-450w-sfx-form-factor-80-plus-bronze-power)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-06-02*