---
product_id: 287314742
title: "2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile"
brand: "ulansen"
price: "A$46"
currency: AUD
in_stock: true
reviews_count: 13
category: "Ulan Se N"
url: https://www.desertcart.com.au/products/287314742-2-5gbase-t-pcie-network-adapter-rtl8125b-2500-1000-100mbps
store_origin: AU
region: Australia
---

# 2.5Gbps blazing speed PCIe x1/x4/x8/x16 versatile slot support Cross-platform OS compatibility 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile

**Brand:** ulansen
**Price:** A$46
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your network game with 2.5G speed and universal compatibility!

## Quick Answers

- **What is this?** 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile by ulansen
- **How much does it cost?** A$46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/287314742-2-5gbase-t-pcie-network-adapter-rtl8125b-2500-1000-100mbps)

## Best For

- ulansen enthusiasts

## Why This Product

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

## Key Features

- • **Blazing 2.5 Gigabit Speed:** Upgrade your network to lightning-fast 2.5Gbps throughput for seamless 4K streaming and lag-free gaming.
- • **Cross-Platform Powerhouse:** Supports Windows, macOS, Linux, and even legacy systems—future-proof your connectivity.
- • **Advanced Remote Management:** Wake-on-LAN and PXE support enable effortless remote control and network booting.
- • **Universal PCIe Compatibility:** Fits effortlessly into any PCIe slot (x1, x4, x8, x16) for flexible installation in desktops and servers.
- • **Low Profile, High Performance:** Compact design with low-profile bracket fits sleek builds without compromising on speed or stability.

## Overview

The 2.5GBase-T PCIe Network Adapter RTL8125B delivers up to 2.5Gbps Ethernet speeds via a versatile PCIe interface compatible with x1, x4, x8, and x16 slots. It supports a wide range of operating systems including Windows, macOS, and Linux, plus advanced features like Wake-on-LAN and PXE for remote management. Its low-profile design ensures easy installation in compact systems, making it an ideal upgrade for professionals seeking faster, reliable network performance.

## Description

Buy 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile: Network Cards - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: A Speedy Upgrade for My Network Setup! - I recently purchased the 2.5GBase-T PCIe Network Adapter with RTL8125B chipset, and it has been a game-changer for my home network. This little powerhouse of a network card has made a significant difference in my data transfer speeds and overall network performance. Installation was a breeze, as the card fits perfectly into a PCIe slot on my motherboard. The drivers were easy to find and install, and I was up and running in no time. I was pleasantly surprised by the compatibility and stability of this card with my system. The most impressive aspect of this network adapter is, of course, its speed. The 2.5 Gigabit per second throughput is a substantial upgrade from my previous 1Gbps network card. I've noticed a significant improvement in file transfer speeds, online gaming, and 4K video streaming. Whether I'm transferring large files or enjoying lag-free online gameplay, this card has consistently delivered. The RTL8125B chipset seems to be doing a fantastic job in managing network traffic. I haven't experienced any connectivity issues, and it's been rock-solid since I installed it. It also supports various advanced features like Wake-on-LAN, which is a handy addition for remote management. Additionally, this network card remains cool and doesn't heat up excessively, even under heavy usage. It also features an efficient power management system, which is great for energy-conscious users. In conclusion, the 2.5GBase-T PCIe Network Adapter with the RTL8125B chipset is an excellent addition to any PC or server setup. If you're looking for a cost-effective way to upgrade your network speeds and improve overall network performance, this card is a solid choice. I couldn't be happier with my purchase, and I highly recommend it to anyone looking to make the leap to faster networking speeds without breaking the bank. Kudos to the makers of this fantastic product!
Review: Works great. - Easy to install, worked with windows without installing drivers. Fast speed.

## Features

- Compatible for X1,X4,X8,X16，Comes with low profilce bracket
- Support PXE function an Wake on LAN
- Support DSM,PVE,ikuai,unraid6.9.2, OpenWrt ESXI6.7 (Doesn’t support ESXI 7.0)
- Freely compatible, the network card can support multiple system: Windows ME/98SE/2000/XP, Win7 / Win8 / Win10 / Vista / Sever 2003/2008 / 2012 /2016/ Linux / DOS/MAC OS

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08V1HG47H |
| Best Sellers Rank | #62 in Internal Computer Networking Cards |
| Brand | ULANSeN |
| Color | red / black |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,560) |
| Date First Available | February 2, 2021 |
| Item Dimensions LxWxH | 2.8 x 1.97 x 0.08 inches |
| Item Weight | 2.82 ounces |
| Item model number | RTL8125B |
| Manufacturer | ULANSON |
| Operating System | ['Windows', 'macOS', 'Linux'] |
| Product Dimensions | 2.8 x 1.97 x 0.08 inches |

## Product Details

- **Brand:** ULANSeN
- **Compatible Devices:** Laptop
- **Hardware Interface:** Ethernet
- **Product Dimensions:** 2.8"L x 1.97"W x 0.08"H
- **Style:** Classic

## Images

![2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile - Image 1](https://m.media-amazon.com/images/I/61jNjSNSj3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A Speedy Upgrade for My Network Setup!
*by J***A on October 18, 2023*

I recently purchased the 2.5GBase-T PCIe Network Adapter with RTL8125B chipset, and it has been a game-changer for my home network. This little powerhouse of a network card has made a significant difference in my data transfer speeds and overall network performance. Installation was a breeze, as the card fits perfectly into a PCIe slot on my motherboard. The drivers were easy to find and install, and I was up and running in no time. I was pleasantly surprised by the compatibility and stability of this card with my system. The most impressive aspect of this network adapter is, of course, its speed. The 2.5 Gigabit per second throughput is a substantial upgrade from my previous 1Gbps network card. I've noticed a significant improvement in file transfer speeds, online gaming, and 4K video streaming. Whether I'm transferring large files or enjoying lag-free online gameplay, this card has consistently delivered. The RTL8125B chipset seems to be doing a fantastic job in managing network traffic. I haven't experienced any connectivity issues, and it's been rock-solid since I installed it. It also supports various advanced features like Wake-on-LAN, which is a handy addition for remote management. Additionally, this network card remains cool and doesn't heat up excessively, even under heavy usage. It also features an efficient power management system, which is great for energy-conscious users. In conclusion, the 2.5GBase-T PCIe Network Adapter with the RTL8125B chipset is an excellent addition to any PC or server setup. If you're looking for a cost-effective way to upgrade your network speeds and improve overall network performance, this card is a solid choice. I couldn't be happier with my purchase, and I highly recommend it to anyone looking to make the leap to faster networking speeds without breaking the bank. Kudos to the makers of this fantastic product!

### ⭐⭐⭐⭐⭐ Works great.
*by S***R on November 20, 2025*

Easy to install, worked with windows without installing drivers. Fast speed.

### ⭐⭐⭐⭐⭐ Works great
*by J***U on December 19, 2025*

Work with Linux out of the box

## Frequently Bought Together

- 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile
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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-25*