---
product_id: 686776977
title: "QFly 2.5G Base-T PCIe Network Adapter,RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card,1x RJ45 LAN Port 2.5G Network Card,Compatible with Windows/Linux"
brand: "qfly"
price: "B/.11"
currency: PAB
in_stock: false
url: https://www.desertcart.com.pa/products/686776977-qfly-2-5g-base-t-pcie-network-adapter-rtl8125b-2500
store_origin: PA
region: Panama
---

# 2.5 Gbps blazing speed Auto-negotiation multi-speed Wide OS & slot compatibility QFly 2.5G Base-T PCIe Network Adapter,RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card,1x RJ45 LAN Port 2.5G Network Card,Compatible with Windows/Linux

**Brand:** qfly
**Price:** B/.11
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Upgrade your network, upgrade your hustle!

## Quick Answers

- **What is this?** QFly 2.5G Base-T PCIe Network Adapter,RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card,1x RJ45 LAN Port 2.5G Network Card,Compatible with Windows/Linux by qfly
- **How much does it cost?** B/.11 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/686776977-qfly-2-5g-base-t-pcie-network-adapter-rtl8125b-2500)

## 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

- • **Blazing 2.5G Speed:** Experience 2.5x faster transfers than standard Gigabit Ethernet for seamless HD streaming and lag-free gaming.
- • **Flexible Installation:** Includes both standard and low-profile brackets to fit any PC chassis, from full towers to compact builds.
- • **Smart Auto-Negotiation:** Effortlessly adapts between 2.5G, 1G, and 100Mbps networks to keep you connected without a hitch.
- • **Universal Compatibility:** Works flawlessly with Windows (XP to 11), Linux kernels 4.5-6.12, and all PCIe x1/x4/x8/x16 slots.
- • **Reliable Support & Warranty:** Backed by 1-year warranty and 24/7 expert technical support to keep your network running smooth.

## Overview

The QFly 2.5G Base-T PCIe Network Adapter leverages the RTL8125B chipset to deliver ultra-fast 2.5 Gbps Ethernet speeds, supporting multi-speed auto-negotiation for seamless compatibility across modern and legacy networks. Designed for professionals demanding high bandwidth, it supports a wide range of Windows and Linux operating systems and fits all PCIe slots with included brackets. Perfect for high-performance streaming, gaming, and large file transfers, it comes with reliable driver support and a 1-year warranty.

## Description

2.5G Base-T PCIe Network Adapter, RTL8125B chipset PCI Express 2.5 Gigabit Ethernet Card, self-negotiation 2500Mbps/1000Mbps/100Mbps multi-speed,1x RJ45 Port, Compatible with Windows/Linux

## Features

- 【Featuring 2.5G Base-T technology】: This 2.5G PCIe network card delivers blazing-fast speeds up to 2.5 Gbps, 2.5x the bandwidth of traditional Gigabit Ethernet, to meet high-bandwidth demands like large file transfers, HD live streaming, and lag-free gaming.
- 【Multiple Speed Auto-Negotiation】: Seamlessly adapts to multi-speed networks (2.5G/1G/100Mbps) with auto-negotiation technology. The 2.5G Ethernet port intelligently adjusts between high-speed and legacy connections, ensuring effortless compatibility with both modern and older devices.
- 【Supported Operating Systems】: Support Windows 11/10/8/8.1/7/XP/Vista, Windows Server 2012/2008 R2/2008/2003, UEFI, Linux kernel 4.5 - 6.12
- 【Great Compatibility】: Compatible with x1, x4, x8, x16 PCIe slots. Standard and low-profile brackets are both provided, suitable for standard and mini PC cases.
- 【Free Driver Downloads】: Please visit Realtek's official website to obtain the latest drivers, and download and install them according to your operating system version.
- 【Reliable Technical Support】: Provide 1 year warranty service and enjoy 24/7 free advanced technical support.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | QFly |
| Manufacturer | QFly |
| Model | 2.5G PCIe |
| Package Dimensions | 15.19 x 13.41 x 3.71 cm; 107 g |
| Item model number | 2.5G PCIe |
| Operating System | Windows, Linux |
| Hardware Interface | PCI Express x1 |
| Compatible Devices | Personal Computer |
| Mounting Hardware | standard bracket, low-profile bracket, screwdriver, screws |
| Number of items | 1 |
| Batteries Included | No |
| Batteries Required | No |
| Data Transfer Rate | 2500 Megabytes Per Second |
| Data Link Protocol | Ethernet, Gigabit Ethernet |
| Manufacturer | QFly |
| Item Weight | 107 g |

## Product Details

- **Brand:** QFly
- **Hardware Interface:** PCI Express x1
- **Style:** Modern
- **Item Weight:** 107 Grams
- **Compatible Devices:** Personal Computer

## Images

![QFly 2.5G Base-T PCIe Network Adapter,RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card,1x RJ45 LAN Port 2.5G Network Card,Compatible with Windows/Linux - Image 1](https://m.media-amazon.com/images/I/71E5UDxCNTL.jpg)
![QFly 2.5G Base-T PCIe Network Adapter,RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card,1x RJ45 LAN Port 2.5G Network Card,Compatible with Windows/Linux - Image 2](https://m.media-amazon.com/images/I/71AjLuTIf-L.jpg)
![QFly 2.5G Base-T PCIe Network Adapter,RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card,1x RJ45 LAN Port 2.5G Network Card,Compatible with Windows/Linux - Image 3](https://m.media-amazon.com/images/I/714LFgqJZLL.jpg)
![QFly 2.5G Base-T PCIe Network Adapter,RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card,1x RJ45 LAN Port 2.5G Network Card,Compatible with Windows/Linux - Image 4](https://m.media-amazon.com/images/I/71ytWWBp9dL.jpg)
![QFly 2.5G Base-T PCIe Network Adapter,RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card,1x RJ45 LAN Port 2.5G Network Card,Compatible with Windows/Linux - Image 5](https://m.media-amazon.com/images/I/71xOeojJs4L.jpg)

---

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**Shop now:** [https://www.desertcart.com.pa/products/686776977-qfly-2-5g-base-t-pcie-network-adapter-rtl8125b-2500](https://www.desertcart.com.pa/products/686776977-qfly-2-5g-base-t-pcie-network-adapter-rtl8125b-2500)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-01-26*