---
product_id: 502190425
title: "QFly 2.5G Dual RJ45 Port PCI-E Network Card with RTL8125B Conrtoller, 2.5Gb Ethernet Adapter Card Compatible with 100/1000Mbps/2.5G, Support Windows/Linux"
brand: "qfly"
price: "776 kr"
currency: DKK
in_stock: true
reviews_count: 6
category: "Q Fly"
url: https://www.desertcart.dk/products/502190425-qfly-2-5g-dual-rj45-port-pci-e-network-card
store_origin: DK
region: Denmark
---

# 2.5 Gbps ultra-fast speed Dual RJ45 ports for versatile connectivity PCIe x1/x4/x8/x16 compatibility QFly 2.5G Dual RJ45 Port PCI-E Network Card with RTL8125B Conrtoller, 2.5Gb Ethernet Adapter Card Compatible with 100/1000Mbps/2.5G, Support Windows/Linux

**Brand:** qfly
**Price:** 776 kr
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your desktop’s network game with dual-port 2.5G speed – because buffering is so last decade!

## Quick Answers

- **What is this?** QFly 2.5G Dual RJ45 Port PCI-E Network Card with RTL8125B Conrtoller, 2.5Gb Ethernet Adapter Card Compatible with 100/1000Mbps/2.5G, Support Windows/Linux by qfly
- **How much does it cost?** 776 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/502190425-qfly-2-5g-dual-rj45-port-pci-e-network-card)

## Best For

- qfly enthusiasts

## Why This Product

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

## Key Features

- • **Universal PCIe Fit:** Fits any PCI Express slot (x1 to x16) with included low-profile and full-height brackets for all PC builds.
- • **Dual-Port Powerhouse:** Double your wired network options with two RJ45 ports, perfect for multitasking or backup connections.
- • **Future-Proof Your Network:** Supports 100/1000/2500 Mbps speeds ensuring smooth upgrades and backward compatibility for years to come.
- • **Plug & Play Compatibility:** Effortless setup with native Windows 10 support and easy driver downloads for Linux and other Windows versions.
- • **Blazing 2.5x Gigabit Speeds:** Experience lightning-fast 2.5 Gbps transfers that crush standard gigabit limits for seamless streaming and gaming.

## Overview

The QFly 2.5G Dual RJ45 Port PCI-E Network Card, powered by the RTL8125B chipset, delivers ultra-fast 2.5 Gbps Ethernet speeds with dual RJ45 ports. Compatible with Windows 7 through 11 and Linux, it supports backward speeds of 100/1000 Mbps and fits all PCIe slots with included low-profile and full-height brackets, making it an ideal upgrade for professionals seeking reliable, high-speed wired connectivity.

## Description

QFly Dual Port 2.5GBase-T Gigabit Ethernet Network Card, RJ45 LAN Network Adaper,PCI Express Ethernet Card(RTL8125b)Chipset, support 100/1000/2500 Mbps for Windows 11/10/8/7/ Linux OS with Low Profile Bracket.

Review: Work as described no issue so far - Installation is easy you need a basic understanding of motherboard and pc to install by yourself
Review: Súper plug and play en GNU/Linux. Use un slot PCI2.0 8x. El Bluetooth es un poco inestable, pero en mi experiencia así son la mayoría de las tarjetas no dedicadas de Bluetooth y muchas económicas. No se si sea que comparten antena, pero la conexión no es buena en modo persistente. Tengo que refrescarla. La calidad del audio es muy buena, no detecto lags. Solamente el detalle de que se desconecta después de unos minutos de no estar en uso activo. No he intentado hacer ningún tipo de solución como agentes suplicadores ni nada por el estilo. Entonces, puede ser que tenga solución sencilla, ni siquiera utilicé un buscador para intentarlo.

## Features

- 【High up to 2.5x-speed】 RTL8125B chip combined with the latest 2.5GBase-T Technology, delivers extreme speeds of up to 2.5 Gbps, 2.5x faster than typical Gigabit network card, Ultra-low latency guaranteeing smooth data transmissions for both internet access and local data transmissions.
- 【Complete Compatibility】 Seamless backward compatibility for 2.5Gbps/1Gbps/100Mbps, Support Windows11/10/8.1/8/7and Linux, no dirver needed on Windows10, easily download the driver in Realtek official website for other OS.
- 【Dual Port 2.5G Network Card】 By inserting a PCIe network card into the PCI Express x1 slot, you can upgrade the host with one more RJ45 port. It's a perfect choice for a Desktop PC that is fewer network ports or network port failure to connect to the wired network.
- 【Fits any PCI Express】 2.5G NIC card fits x1, x4, x8 or x16 socket; Additional 8cm Low-profile bracket provides the option for installation in small size HTPC case. NOTE: Only work with PCI-E slot, Not for PCI Slot.
- 【Low-Profile and Full-Height Brackets】PCIE Ethernet card In addition to the standard bracket, a low-profile bracket is provided for mini tower computer cases. Customized options give you the flexibility to find a bracket that perfectly fits your board design.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BN6CL81R |
| Are Batteries Included | No |
| Best Sellers Rank | #56,903 in Computers ( See Top 100 in Computers ) #139 in Network Cards |
| Brand | QFly |
| Color | NIC-2.5G Daul Port |
| Customer Reviews | 4.4 4.4 out of 5 stars (360) |
| Date First Available | 27 November 2022 |
| Item Weight | 78.5 g |
| Item model number | QFly-25G-DualPort |
| Manufacturer | PANSHI |
| Operating System | Windows11/10/8.1/8/7 Linux |
| Package Dimensions | 15.4 x 13.2 x 3.7 cm; 78.5 g |

## Product Details

- **Brand:** QFly
- **Compatible devices:** Desktop
- **Hardware interface:** PCI Express x1, PCI Express x16, PCI Express x4, PCI Express x8
- **Item weight:** 78.5 Grams
- **Style:** standard

## Images

![QFly 2.5G Dual RJ45 Port PCI-E Network Card with RTL8125B Conrtoller, 2.5Gb Ethernet Adapter Card Compatible with 100/1000Mbps/2.5G, Support Windows/Linux - Image 1](https://m.media-amazon.com/images/I/612ec5C8GxL.jpg)
![QFly 2.5G Dual RJ45 Port PCI-E Network Card with RTL8125B Conrtoller, 2.5Gb Ethernet Adapter Card Compatible with 100/1000Mbps/2.5G, Support Windows/Linux - Image 2](https://m.media-amazon.com/images/I/612nCdf1w8L.jpg)
![QFly 2.5G Dual RJ45 Port PCI-E Network Card with RTL8125B Conrtoller, 2.5Gb Ethernet Adapter Card Compatible with 100/1000Mbps/2.5G, Support Windows/Linux - Image 3](https://m.media-amazon.com/images/I/61C-wFN3nBL.jpg)
![QFly 2.5G Dual RJ45 Port PCI-E Network Card with RTL8125B Conrtoller, 2.5Gb Ethernet Adapter Card Compatible with 100/1000Mbps/2.5G, Support Windows/Linux - Image 4](https://m.media-amazon.com/images/I/61VKKrx1gBL.jpg)
![QFly 2.5G Dual RJ45 Port PCI-E Network Card with RTL8125B Conrtoller, 2.5Gb Ethernet Adapter Card Compatible with 100/1000Mbps/2.5G, Support Windows/Linux - Image 5](https://m.media-amazon.com/images/I/711rQIBcj7L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Work as described no issue so far
*by A***I on 8 January 2024*

Installation is easy you need a basic understanding of motherboard and pc to install by yourself

### ⭐⭐⭐⭐⭐ Review
*by L***A on 24 August 2023*

Súper plug and play en GNU/Linux. Use un slot PCI2.0 8x. El Bluetooth es un poco inestable, pero en mi experiencia así son la mayoría de las tarjetas no dedicadas de Bluetooth y muchas económicas. No se si sea que comparten antena, pero la conexión no es buena en modo persistente. Tengo que refrescarla. La calidad del audio es muy buena, no detecto lags. Solamente el detalle de que se desconecta después de unos minutos de no estar en uso activo. No he intentado hacer ningún tipo de solución como agentes suplicadores ni nada por el estilo. Entonces, puede ser que tenga solución sencilla, ni siquiera utilicé un buscador para intentarlo.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 23 May 2025*

I picked up two of these QFly 2.5G dual-port PCIe cards and they’ve been phenomenal for the price. Easy install, solid performance on both Windows and Linux. The only hiccup was with PCI passthrough — the Realtek RTL8125B chipset doesn’t play nice with virtual machine passthrough. I had to fall back to a VirtIO setup for my router VM. Not ideal, but it works — and that’s on the chipset, not the card. Pros: Reliable 2.5G speeds Plug-and-play on most systems Great price Dual ports on a PCIe x1 slot — perfect for compact or low-slot systems Cons: Realtek chip has known passthrough issues in VM setups Verdict: 5 stars. Great card, just avoid it for passthrough-heavy virtualization.

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-03*