---
product_id: 551901057
title: "RTL8125-2.5G-4T-X4"
brand: "10gtek"
price: "฿5772"
currency: THB
in_stock: null
reviews_count: 8
category: "10 Gtek"
url: https://www.desertcart.co.th/products/551901057-rtl8125-2-5g-4t-x4
store_origin: TH
region: Thailand
---

# 2.5 Gbps ultra-fast transfer Quad RJ-45 ports for multi-device connectivity PCIe 2.1 x4 lane for seamless bandwidth RTL8125-2.5G-4T-X4

**Brand:** 10gtek
**Price:** ฿5772
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Quad-port 2.5G NIC: Power your network like a pro, or risk being left behind!

## Quick Answers

- **What is this?** RTL8125-2.5G-4T-X4 by 10gtek
- **How much does it cost?** ฿5772 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/551901057-rtl8125-2-5g-4t-x4)

## Best For

- 10gtek enthusiasts

## Why This Product

- Trusted 10gtek brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quad-Port Powerhouse:** Connect up to four devices simultaneously with robust RJ-45 ports—perfect for multitasking pros and hybrid work setups.
- • **Advanced Network Features:** Supports Jumbo Frames, WOL, DPDK, iSCSI, and FCoE for enterprise-level efficiency and control.
- • **Blazing 2.5 Gigabit Speed:** Experience lightning-fast network performance that keeps you ahead in every digital meeting and data transfer.
- • **Cross-Platform Compatibility:** Effortlessly integrates with Windows, Linux, Ubuntu, CentOS, and VMware ESXi 6—future-proof your network infrastructure.
- • **Seamless PCIe 2.1 x4 Integration:** Maximize throughput with a high-bandwidth PCIe interface designed for professional-grade networking.

## Overview

The RTL8125-2.5G-4T-X4 is a high-performance PCIe 2.1 x4 network card featuring the Realtek RTL8125BG controller and ASMedia ASM1812 chipset. It delivers up to 2.5 Gbps data transfer speeds across four RJ-45 ports, supporting advanced networking protocols like Jumbo Frames, WOL, DPDK, iSCSI, and FCoE. Compatible with a wide range of operating systems including Windows 7-11, multiple Windows Server versions, Linux distros, and VMware ESXi 6, this card is ideal for professionals seeking reliable, multi-device connectivity and enterprise-grade features.

## Description

Buy 100M/1000M/2.5G NIC Network Card, Quad RJ-45 Port, with Realtek RTL8125BG Controller, Support Windows/Windows Server/Linux/Ubuntu/Centos/Vmware: Network Cards - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works on Dell Optiplex 3060 MFF running Ubuntu - So far, so good. I installed this in the WiFi slot of my Dell Optiplex MFF running Ubuntu. Fired up just fine and is showing a 2.5 GbE connection. No need to add any drivers, presumably because the on-board NIC is Realtek.
Review: It is complete - Works as advertised:) and comes with drivers

## Features

- Controller(s)：Realtek RTL8125BG + ASMedia ASM1812.
- Quad RJ-45 Ports.(Note: Four ports working at the same time, the rate can not be full.)
- PCIe2.1, x4 Lane.
- Support Jumbo FramesWOL, DPDK, iSCSI, FCoE. Not-support PXE, VLAN.
- Compatible with Windows 7/8/10/11, Windows Server 2008 R2/2012/2016/2019, Linux 2.6.x to 5.x, Centos 6/7/8, Ubuntu 16/18/19/20, VMware ESXi 6. NOT SUPPORT ESXI 7/8, FREEBSD and HOT SWAPING.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BQ32FVKR |
| Best Sellers Rank | #31 in Internal Computer Networking Cards |
| Brand | 10Gtek |
| Color | PCIe-X4 |
| Compatible Devices | Server, Desktop |
| Customer Reviews | 4.1 out of 5 stars 80 Reviews |
| Data Link Protocol | Ethernet |
| Data Transfer Rate | 2.5 Gigabytes Per Second |
| Hardware Interface | PCIE x 4 |
| Item Weight | 0.17 Kilograms |
| Manufacturer | 10Gtek |

## Product Details

- **Brand:** 10Gtek
- **Hardware Interface:** PCIE x 4
- **Color:** PCIe-X4
- **Compatible Devices:** Server, Desktop
- **Data Link Protocol:** Ethernet
- **Data Transfer Rate:** 2.5 Gigabytes Per Second
- **Item Weight:** 0.17 Kilograms
- **Manufacturer:** 10Gtek

## Images

![RTL8125-2.5G-4T-X4 - Image 1](https://m.media-amazon.com/images/I/61jSmjyYwVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works on Dell Optiplex 3060 MFF running Ubuntu
*by A***. on November 27, 2025*

So far, so good. I installed this in the WiFi slot of my Dell Optiplex MFF running Ubuntu. Fired up just fine and is showing a 2.5 GbE connection. No need to add any drivers, presumably because the on-board NIC is Realtek.

### ⭐⭐⭐⭐⭐ It is complete
*by D***D on December 2, 2025*

Works as advertised:) and comes with drivers

### ⭐⭐⭐⭐ Works in Lenovo M700 Tiny with Unraid 7.1.4
*by S***Y on August 26, 2025*

Very niche product that works for my very specific use case. I wanted to upgrade my Lenovo M700 Tiny with some higher speed networking as it has a DAS attached storage and Unraid on it. I was able to install it in the wireless card class that was close to the power button. The very tight fit, but was able to fold the cable under the card and route it to the back. I was able to pull the PCI brackets off the Ethernet port and use the screws and holes to attach it to an unused serial slot punch out. I used a piece of electrical tape to cover the bottom of the Ethernet port PCB to keep from shorts. It looks factory! Unraid 7.1.4 picked it up without any issue and able to see 2500 Mbps connection. (Router confirms as well) Initial speed tests seem to confirm it. Hopeful that the RTL8125 will be reliable as the Intel I219-V has been. Three complaints. First is on Amazon, the packed was crushed. Luckily it was packed in a strong plastic case. Second, the cable is very short. Even in my tiny client PC, it took some creative routing. I would appreciate a bit more length on the cable. Third, please include a screw for the M.2 please. I can understand a commodity SSD not including a screw, but this is a bit more niche. Even a cheap screw driver was included. Overall, a great way to add higher speed networking to a mini PC. Unraid worked out of the box.

## Frequently Bought Together

- 100M/1000M/2.5G NIC Network Card, Quad RJ-45 Port, with Realtek RTL8125BG Controller, Support Windows/Windows Server/Linux/Ubuntu/Centos/Vmware
- 10Gtek 10Gb Dual RJ45 Port Network Card with X540 Controller, PCIe Ethernet LAN Adapter for Windows/Linux/ESX Servers, Compare to Intel X540-T2

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**Shop now:** [https://www.desertcart.co.th/products/551901057-rtl8125-2-5g-4t-x4](https://www.desertcart.co.th/products/551901057-rtl8125-2-5g-4t-x4)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-24*