---
product_id: 129399687
title: "FSP Mini ITX Solution/Flex ATX 500W ≥ 90% Efficiency Full Range AC Input Power Supply (FSP500-50FDB)"
brand: "fsp"
price: "£195.29"
currency: GBP
in_stock: true
reviews_count: 4
category: "Fsp"
url: https://www.desertcart.co.uk/products/129399687-fsp-mini-itx-solution-flex-atx-500w-90-efficiency-full
store_origin: GB
region: United Kingdom
---

# 500W robust power output ≥90% energy efficiency 50℃ high-temp endurance FSP Mini ITX Solution/Flex ATX 500W ≥ 90% Efficiency Full Range AC Input Power Supply (FSP500-50FDB)

**Brand:** fsp
**Price:** £195.29
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your passion with efficiency and reliability — because your build deserves the best.

## Quick Answers

- **What is this?** FSP Mini ITX Solution/Flex ATX 500W ≥ 90% Efficiency Full Range AC Input Power Supply (FSP500-50FDB) by fsp
- **How much does it cost?** £195.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/129399687-fsp-mini-itx-solution-flex-atx-500w-90-efficiency-full)

## Best For

- fsp enthusiasts

## Why This Product

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

## Key Features

- • **Built for the Heat:** 100% burn-in tested at 50℃ ambient temperature ensures unwavering stability under pressure.
- • **Compact & Versatile:** Slim Flex ATX form factor fits tight spaces without compromising power, perfect for sleek, professional workstations.
- • **Powerhouse Performance:** Delivers a solid 500W to fuel your Mini ITX or Flex ATX builds with industrial-grade reliability.
- • **Global Safety Certified:** Latest UL 62368-1 certification and EN61000-3-2 compliance guarantee worldwide regulatory peace of mind.
- • **Gold Standard Efficiency:** Achieves ≥90% efficiency, meeting 80Plus Gold standards to keep your energy bills low and your setup green.

## Overview

The FSP500-50FDB is a compact, industrial-grade 500W power supply designed for Mini ITX and Flex ATX systems. It boasts ≥90% efficiency, meeting 80Plus Gold standards, and is rigorously tested for high-temperature endurance and electrical safety compliance worldwide. Ideal for professionals seeking a reliable, space-saving PSU for servers, workstations, and automation applications.

## Description

FSP500-50FDB is an industrial level of switching power supply. The power supply comes to offer the total power capacity up to 500 Watts, and uses unique active PFC (Power Factor Correction) circuit design with its high-load electrical components, makes it be perfectly used in an industrial environment. In addition, with its full range of input and output electrical features, the power supply is ideally the best choice for server, workstation, communication or any other automation applications to use. The product also complies with the latest safety and EMC standards, which is perfect to meet various regulations worldwide.

Review: No Problems - Haven't had any problems with the FSP power supply so far. I build small Mini-ITX builds for my military pals (or whoever). When you are moving a lot, having a smaller form factor PC is really nice. The only thing I recommend is to purchase an 8Pin to 4+4Pin cpu power cable, the FSP comes with only an 8Pin, but that's not a negative, just be sure to check what your motherboard needs. The FSP power supply doesn't have an off/on switch, so be doubly sure you are powered off and unplugged when you want to reach inside your tower.
Review: It is really loud. - This is one of the cheaper flex psu for a good reason, it is really loud. The power supply fired up in good working condition, but I noticed a loud noise coming from my computer. I just swapped it out it a silverstone psu which hardly made any noise. When I installed this one it made a huge difference in ambient noise. I thought it was the Gpu fan, but it was at idle, my cpu heatsink fan is quiet too. But I put my ear next to the psu exhaust and clearly could pinpoint it. So first impressions is that it is cheap and works well. Con is that it is really loud.

## Features

- ≥90% Efficiency, Meets 80Plus Gold Standard
- Low Ripple & Noise
- 100% burn-in under high ambient temperature(50℃)
- 100% Hi-pot tested Complies with EN61000-3-2 AC input full range
- Latest UL Certification, UL 62368-1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QYXM5LJ |
| Best Sellers Rank | #3,133 in Computer Power Supplies |
| Brand | FSP |
| Connector Type | ATX |
| Connector Type Used on Cable | ATX |
| Cooling Method | Air |
| Customer Reviews | 3.7 out of 5 stars 10 Reviews |
| Form Factor | Flex ATX |
| Item Dimensions | 5.91 x 1.61 x 3.23 inches |
| Item Weight | 907 Grams |
| Manufacturer | FSP Group |
| Mfr Part Number | FSP400-701UH |
| Model Name | FSP500-50FDB |
| Model Number | FSP400-701UH |
| Output Wattage | 500 Watts |
| Power Supply Design | External |
| UPC | 845685010339 |
| Upper Temperature Rating | 50 Degrees Celsius |
| Wattage | 500 watts |

## Product Details

- **Brand:** FSP
- **Connector Type:** ATX
- **Cooling Method:** Air
- **Form Factor:** Flex ATX
- **Item Weight:** 907 Grams
- **Item dimensions L x W x H:** 5.91 x 1.61 x 3.23 inches
- **Model Name:** FSP500-50FDB
- **Output Wattage:** 500 Watts
- **Power Supply Design:** External
- **Wattage:** 500 watts

## Images

![FSP Mini ITX Solution/Flex ATX 500W ≥ 90% Efficiency Full Range AC Input Power Supply (FSP500-50FDB) - Image 1](https://m.media-amazon.com/images/I/61XVVCwGqlL.jpg)
![FSP Mini ITX Solution/Flex ATX 500W ≥ 90% Efficiency Full Range AC Input Power Supply (FSP500-50FDB) - Image 2](https://m.media-amazon.com/images/I/71MJbvKK5ML.jpg)
![FSP Mini ITX Solution/Flex ATX 500W ≥ 90% Efficiency Full Range AC Input Power Supply (FSP500-50FDB) - Image 3](https://m.media-amazon.com/images/I/71Vak1zlPCL.jpg)
![FSP Mini ITX Solution/Flex ATX 500W ≥ 90% Efficiency Full Range AC Input Power Supply (FSP500-50FDB) - Image 4](https://m.media-amazon.com/images/I/71GCm+3uT+L.jpg)
![FSP Mini ITX Solution/Flex ATX 500W ≥ 90% Efficiency Full Range AC Input Power Supply (FSP500-50FDB) - Image 5](https://m.media-amazon.com/images/I/710y9g5QvbL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ No Problems
*by J***B on July 21, 2019*

Haven't had any problems with the FSP power supply so far. I build small Mini-ITX builds for my military pals (or whoever). When you are moving a lot, having a smaller form factor PC is really nice. The only thing I recommend is to purchase an 8Pin to 4+4Pin cpu power cable, the FSP comes with only an 8Pin, but that's not a negative, just be sure to check what your motherboard needs. The FSP power supply doesn't have an off/on switch, so be doubly sure you are powered off and unplugged when you want to reach inside your tower.

### ⭐⭐⭐ It is really loud.
*by T***Y on February 3, 2023*

This is one of the cheaper flex psu for a good reason, it is really loud. The power supply fired up in good working condition, but I noticed a loud noise coming from my computer. I just swapped it out it a silverstone psu which hardly made any noise. When I installed this one it made a huge difference in ambient noise. I thought it was the Gpu fan, but it was at idle, my cpu heatsink fan is quiet too. But I put my ear next to the psu exhaust and clearly could pinpoint it. So first impressions is that it is cheap and works well. Con is that it is really loud.

### ⭐⭐⭐⭐⭐ Great brand excellent quality
*by A***N on May 10, 2020*

I have used fsp power supplies for over 10 years and in my opinion one of the most reliable especially when used in diy applications or replacing old tired inefficient oem power supplies.

## Frequently Bought Together

- FSP Mini ITX Solution/Flex ATX 500W ≥ 90% Efficiency Full Range AC Input Power Supply (FSP500-50FDB)
- Crucial Pro 32GB DDR4 RAM Kit (2x16GB), High-Performance 3200MHz (or 3000MHz or 2666MHz) Desktop Memory UDIMM 288-Pin, Compatible with Intel and AMD Ryzen - CP2K16G4DFRA32A
- SAMSUNG 990 EVO Plus SSD 2TB, PCIe Gen 4x4, Gen 5x2 M.2 2280, Speeds Up-to 7,250 MB/s, Upgrade Storage for PC/Laptops, HMB Technology and Intelligent Turbowrite 2.0, (MZ-V9S2T0B/AM)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-07-14*