---
product_id: 537494214
title: "FSP Dagger Pro 850W SFX Form Factor Power Supply, ATX 3.1 & PCIe 5.1"
brand: "fsp"
price: "1863 Lei"
currency: RON
in_stock: true
reviews_count: 5
category: "Fsp"
url: https://www.desertcart.ro/products/537494214-fsp-dagger-pro-850w-sfx-form-factor-power-supply-atx
store_origin: RO
region: Romania
---

# 850W peak power SFX compact form factor Semi-fanless cooling FSP Dagger Pro 850W SFX Form Factor Power Supply, ATX 3.1 & PCIe 5.1

**Brand:** fsp
**Price:** 1863 Lei
**Availability:** ✅ In Stock

## Summary

> ⚡ Compact power, future-proofed performance — your desk’s new best friend.

## Quick Answers

- **What is this?** FSP Dagger Pro 850W SFX Form Factor Power Supply, ATX 3.1 & PCIe 5.1 by fsp
- **How much does it cost?** 1863 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/537494214-fsp-dagger-pro-850w-sfx-form-factor-power-supply-atx)

## 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

- • **Whisper-Quiet Focus Mode:** Semi-fanless design keeps noise at zero under light loads—work or game in peace.
- • **Modular Mastery for Clean Builds:** Fully modular cables mean zero clutter and maximum airflow in tight spaces.
- • **Power Your Mini Build Like a Pro:** 850W of clean, stable power tailored for compact SFF and ATX rigs.
- • **Future-Ready with ATX 3.1 & PCIe 5.1:** Native 12V-2x6 connector handles next-gen GPUs and AI workloads without breaking a sweat.
- • **Built to Last with Premium Japanese Caps:** 80 PLUS Gold efficiency and 100% Japanese capacitors ensure rock-solid reliability and longevity.

## Overview

The FSP Dagger Pro 850W is a compact SFX power supply designed for small form factor and ATX PC builds. It supports the latest ATX 3.1 and PCIe 5.1 standards with a native 12V-2x6 connector, delivering stable 850W power. Featuring a semi-fanless cooling system, fully modular cables, and premium Japanese capacitors, it offers quiet operation, clean cable management, and exceptional durability with 80 PLUS Gold efficiency.

## Description

Buy FSP Dagger Pro 850W SFX Form Factor Power Supply, ATX 3.1 & PCIe 5.1 | 80+ Gold Efficiency, Native 12V-2x6 Cable, Fits SFF/ATX Cases, Full Modular, Japanese Capacitors, 10-Year Warranty, SDA2-850: Internal Power Supplies - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Worth it - Still holding up like a champ and does exactly as expects , it fits in my small build pc case and it powers on my rtx 5060
Review: Compact!!! - Lovely PSU fan. It significantly reduces the weight of a mini ATX build. Less weight is needed, as I place my PC on my desk.

## Features

- COMPACT SFX FORM FACTOR FOR SFF BUILDS: Maximize your desk space without sacrificing power. Designed for Mini-ITX and Micro-ATX gaming PCs, this unit includes a standard ATX bracket adapter to eliminate compatibility guesswork, ensuring a seamless installation whether you're building in a tiny ITX chassis or an ATX case.
- ATX 3.1 & PCIe 5.1 READY: Future-proof your rig for top-tier hardware. Featuring the 12V-2x6 connector, this PSU effortlessly handles massive power spikes during intense gaming or AI workloads, ensuring peak performance and zero system crashes.
- SEMI-FANLESS COOLING: Focus on your work or game without distracting PC noise. Equipped with a 92mm ball-bearing fan, the intelligent semi-fanless mode keeps the fan completely off under 20% load for absolute silence during light tasks, kicking in only when your system demands maximum cooling.
- FULLY MODULAR & ULTRA-FLEXIBLE CABLES: Clean up your build and improve chassis airflow effortlessly. The fully modular design lets you connect only what you need, minimizing clutter and frustration in tight mini-ITX cases where space is extremely limited.
- ULTIMATE PROTECTION WITH 100% JAPANESE CAPACITORS: Protect your expensive PC investment. Built exclusively with premium Japanese capacitors, this 80 PLUS Gold certified PSU delivers clean, rock-solid power while reducing heat. It effectively shields your components from voltage fluctuations and overloads, ensuring exceptional longevity and peace of mind.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C3WQ47CD |
| Best Sellers Rank | #218 in Computer Power Supplies |
| Brand | FSP |
| Compatible Devices | Computer, PC, SFF PC |
| Connector Type | ATX |
| Connector Type Used on Cable | ATX |
| Cooling Method | Air |
| Current Rating | 70.83 A |
| Customer Reviews | 4.4 out of 5 stars 14 Reviews |
| EU Spare Part Availability Duration | 10 years |
| Fan Size | 2.5 inches |
| Form Factor | SFX |
| Item Dimensions | 4.92 x 3.93 x 2.5 inches |
| Item Weight | 2.05 kg |
| Manufacturer | FSP Group U.S.A |
| Maximum Input Voltage | 240 volts_of_alternating_current |
| Mfr Part Number | PPA8503901 |
| Minimum Input Voltage | 100 volts_of_alternating_current |
| Model Name | SDA2-850 |
| Model Number | SDA2-850-G5 |
| Number of Fans | 1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Wattage | 850 watts |
| Power Supply Design | Full Modular |
| System Bus Connector Type | 20+4 Pin |
| UPC | 845685013934 |
| Unit Count | 1 Count |
| Warranty Description | 5 year manufacturer |
| Wattage | 850 watts |

## Product Details

- **Model Name:** SFX PSU
- **Brand:** FSP
- **Compatible Devices:** PC
- **Connector Type:** ATX
- **Output Wattage:** 850
- **Form Factor:** Atx,Atx12v,Sfx
- **Wattage:** 850 watts
- **Cooling Method:** Air
- **Item dimensions L x W x H:** 5 x 4 x 2.5 inches
- **Item Weight:** 2.05 Kilograms

## Images

![FSP Dagger Pro 850W SFX Form Factor Power Supply, ATX 3.1 & PCIe 5.1 - Image 1](https://m.media-amazon.com/images/I/51+Cu1Ot4rL.jpg)
![FSP Dagger Pro 850W SFX Form Factor Power Supply, ATX 3.1 & PCIe 5.1 - Image 2](https://m.media-amazon.com/images/I/614KlqzB59L.jpg)
![FSP Dagger Pro 850W SFX Form Factor Power Supply, ATX 3.1 & PCIe 5.1 - Image 3](https://m.media-amazon.com/images/I/61vGn9Al41L.jpg)
![FSP Dagger Pro 850W SFX Form Factor Power Supply, ATX 3.1 & PCIe 5.1 - Image 4](https://m.media-amazon.com/images/I/71vtMO+j9uL.jpg)
![FSP Dagger Pro 850W SFX Form Factor Power Supply, ATX 3.1 & PCIe 5.1 - Image 5](https://m.media-amazon.com/images/I/71KYgbnyiBL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth it
*by T***R on July 26, 2026*

Still holding up like a champ and does exactly as expects , it fits in my small build pc case and it powers on my rtx 5060

### ⭐⭐⭐⭐⭐ Compact!!!
*by S***Y on September 8, 2025*

Lovely PSU fan. It significantly reduces the weight of a mini ATX build. Less weight is needed, as I place my PC on my desk.

### ⭐⭐⭐⭐⭐ FSP SFX ATX 3.0 PSU Review
*by V***. on January 18, 2025*

Excellent quality PSU with dedicated GPU power cable. I'm running this PSU to a RTX 4070 Super and ITX sized MINISFORUM BD795i SE motherboard/cpu/heatsink assembly. Getting excellent temps and stability with this PSU, highly recommended.

## Frequently Bought Together

- FSP Dagger Pro SFX Power Supply, 80 Plus Gold, ATX3.0/PCIe 5, Full Modular (SDA2-850-Gen5)
- ID-COOLING IS-55 Black CPU Cooler Low Profile 55mm Height CPU Air Cooler 5 Heatpipes 120x120x15mm Slim Fan, CPU Fan for Intel LGA1851/1700/115X/1200; AMD AM4/AM5
- Noctua NF-A12x15 PWM chromax.Black.swap, Premium Quiet Slim Fan, 4-Pin (120x15mm, Black)

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**Shop now:** [https://www.desertcart.ro/products/537494214-fsp-dagger-pro-850w-sfx-form-factor-power-supply-atx](https://www.desertcart.ro/products/537494214-fsp-dagger-pro-850w-sfx-form-factor-power-supply-atx)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-08-19*