--- product_id: 422093367 title: "1-Port 2.5Gb Ethernet Network Card, with Realtek RTL8125B Chip | 100M/1000M/2.5G Ethernet NIC, Single RJ-45 Port, PCIe2.1, X1, Support Windows Server/Vmware ect., Model: RTL8125-2.5G-1T-X1" brand: "10gtek" price: "€ 37.69" currency: EUR in_stock: false reviews_count: 12 url: https://www.desertcart.sk/products/422093367-1-port-2-5gb-ethernet-network-card-with-realtek-rtl8125b store_origin: SK region: Slovakia --- # 2.5Gbps blazing speed Single RJ-45 port PCIe 2.1 x1 lane compatibility 1-Port 2.5Gb Ethernet Network Card, with Realtek RTL8125B Chip | 100M/1000M/2.5G Ethernet NIC, Single RJ-45 Port, PCIe2.1, X1, Support Windows Server/Vmware ect., Model: RTL8125-2.5G-1T-X1 **Brand:** 10gtek **Price:** € 37.69 **Availability:** ❌ Out of Stock ## Summary > 🚀 Upgrade your network, upgrade your workflow! ## Quick Answers - **What is this?** 1-Port 2.5Gb Ethernet Network Card, with Realtek RTL8125B Chip | 100M/1000M/2.5G Ethernet NIC, Single RJ-45 Port, PCIe2.1, X1, Support Windows Server/Vmware ect., Model: RTL8125-2.5G-1T-X1 by 10gtek - **How much does it cost?** € 37.69 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/422093367-1-port-2-5gb-ethernet-network-card-with-realtek-rtl8125b) ## 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 - • **Universal Slot Fit:** Seamlessly plugs into PCIe x1, x4, x8, or x16 slots for ultimate flexibility. - • **Dual Bracket Design:** Includes both full-height and low-profile brackets to fit any desktop chassis with ease. - • **Plug & Play Versatility:** Supports a wide range of OS including Windows Server, Linux distros, and VMware for professional-grade deployment. - • **Turbocharge Your Network:** Experience lightning-fast 2.5Gbps data transfer, leaving standard gigabit cards in the dust. - • **Future-Proof Compatibility:** Backward compatible with 100Mbps and 1Gbps networks, ensuring smooth integration with existing infrastructure. ## Overview The 10Gtek 1-Port 2.5Gb Ethernet Network Card with Realtek RTL8125B chip delivers ultra-fast 2.5Gbps speeds via a single RJ-45 port. Designed for professional environments, it supports PCIe 2.1 x1 slots and a broad range of operating systems including Windows Server and Linux. Its dual bracket design ensures compatibility with various desktop setups, making it a versatile and cost-effective upgrade for modern network demands. ## Description 10Gtek focuses on developing high performance cable and transceiver solutions for data center, HPC and AI applications. The main products include Transceivers, Direct Attach Cable(DAC), Active Optical Cable(AOC), Fiber Optical Cable, Network Integrated Card(NIC), etc. 10Gtek is with the goal of providing quality guaranteed and cost effective products for customers all around the world. Welcome to customize production. ## Features - Controller：Realtek RTL8125B - Spec.: Data rate: 2.5Gb, backward compatible with 100Mbps/ 1000Mbps; Single RJ-45 port, PCIe2.1, X1 Lane, work with PCI-E X1/ X4/ X8/ X16 slots; Both Full-Height and Low-Profile Brackets are included - Supported operating systems: Windows 7/8/10, Windows Server 2008/2012/2016/2019, Centos/RHEL 6/7/8, Ubuntu 18/19/20/21, Debian 9/10/11, FreeBSD 10/11/12, Vmware Esxi 5/6. Do not support Vmware Esxi 7.0, Mac OS, Bypass Mode. Please refer to “Product Description" for more details - Support PXE, VLAN, Jumbo Frames. Do not support WOL, DPDK, iSCSI, FCoE. Do not support hot swaping ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09Q827XP8 | | Best Sellers Rank | 16,251 in Computers & Accessories (See Top 100 in Computers & Accessories) 41 in Network Cards | | Brand Name | 10Gtek | | Color | 2.5G, 1-RJ45 | | Compatible Devices | Desktop | | Compatible Operating System Family | Windows | | Country Of Origin | China | | Customer Reviews | 4.5 4.5 out of 5 stars (142) 4.5 out of 5 stars | | Data Link Protocol | Ethernet, Fast Ethernet, Gigabit Ethernet | | Data Transfer Rate | 2500 Megabits Per Second | | Hardware Interface | Ethernet | | Item Weight | 0.11 Kilograms | | Manufacturer | 10Gtek | | Manufacturer Part Number | RTL8125-2.5G-1T-X1(EU) | | Number Of Items | 1 | ## Product Details - **Brand:** 10Gtek - **Colour:** 1-RJ45 - **Compatible Operating System Family:** Windows - **Compatible devices:** Desktop - **Data link protocol:** Ethernet, Fast Ethernet, Gigabit Ethernet - **Data transfer rate:** 2500 Megabits Per Second - **Hardware interface:** Ethernet - **Item weight:** 0.11 Kilograms - **Manufacturer:** 10Gtek ## Images ![1-Port 2.5Gb Ethernet Network Card, with Realtek RTL8125B Chip | 100M/1000M/2.5G Ethernet NIC, Single RJ-45 Port, PCIe2.1, X1, Support Windows Server/Vmware ect., Model: RTL8125-2.5G-1T-X1 - Image 1](https://m.media-amazon.com/images/I/61a4uAb+VTL.jpg) ## Available Options This product comes in different **Size Name** options. ## Questions & Answers **Q: Can you bond the quad connections with link aggregation using a smart switch?** A: Dear customer, Thanks for your question. Yes, this Intel I340-T4/E1G44HT compatible gigabit network card can support link aggregation. Hope our answer helps you. Thanks and best regards. **Q: This will work with ESXi 7 ?** A: Dear customer, Thanks for your question. No, this 10Gtek for Intel E1G42ET gigabit network card doen't work with ESXi 7, because ESXi 7 no longer supports Intel 82576 chip network cards. Hope our answer is helpful to you. Thanks and best regards, Shirley **Q: Does this card support wake-on-lan?** A: Dear customer, Thanks for your question. No, this 10Gtek® for Intel EXPI9301CT gigabit network card (ASIN: B01H6O7X0W ) doesn't support wake-on-lan, but 10Gtek® for Intel I210-T1 gigabit network card (ASIN: B01H6O7TMO) can support wake-on-lan. Here is the link for 10Gtek® for Intel I210-T1: https://www.amazon.co.uk/dp/B01H6O7TMO?ref=myi_title_dp. Hope our answer can help you. Thanks and best regards, Belinda **Q: Do the 2 physical ports appear as 2 separate interfaces in the os - i.e. can i have 2 separate ip addresses and route between them (unix)?** A: Dear customer, Thanks for your question. Yes, you can have 2 seperate ip addresses. What do you mean " route between them “ ？ Usually, this has nothing to do with the hardware network card, you should check this with the system. Hope our answer helps. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well with true multi-OS driver support including Windows Server. *by on Reviewed in the United Kingdom 1 July 2025* Was looking for a 2.5gbe NIC that would work fine with Windows Server 2019 due to the 2 NICs built onto the motherboard not being compatible with Windows Server family (thanks Intel for purposely doing this so users are pushed towards proper server platforms instead of using a consumer one). The Realtek chipset used on this NIC installed without any hassle once got the drivers from Realtek’s global website. granted you will lose available PCIe lanes so may not be for someone that wants to keep 16 lanes for their GPU & multiple NVMe drives on a gaming rig, but general usage overheads are low and no worse than an onboard NIC (a lot of the cheaper NICs rely on software & the CPU to control traffic etc but this seems like a true hardware controlled NIC). Doesn’t seem to slow down under load either which a lot of cheaper cards can do as the controller gets hot, but this shouldn’t be a problem if got sufficient cooling in the case.Very happy with the performance of this NIC and will be buying more of them when required to either upgrade from Gigabit to 2.5gbe connectivity or replace a failed onboard NIC. ### ⭐⭐⭐⭐⭐ Been solidly doing the job for a year now. *by on Reviewed in the United Kingdom 11 April 2026* I always feel NICS are overpriced but this was the cheapest that I could find that actually looked reliable. And it has been. A year in, it's been working away without complaint and I've been plenty happy with it. There's not really much to add - you know what it is and what it's rated at. All I can say is that it's been able to work well and I've had no driver or other issues with it on Linux or Windows. I'll be happy to just use Gtek for any future NICs I need and if they have a 10Gb when I need that, will probably buy from them.With a network card, the main thing you want is for it to work and keep working. This does. ### ⭐⭐⭐⭐⭐ Perfect for UnRaid server *by on Reviewed in the United Kingdom 27 March 2025* Easy to install, works really well and good value for money, what's not to like!Used in UnRaid server with 'RTL8125 Drivers' plugin and works flawlessly at 2.5gb/s ## Frequently Bought Together - 10Gtek 100M/1000M/2.5G NIC Network Card,Single RJ-45 Port,with Realtek RTL8125 Controller,Support Windows Server/Ubuntu/Centos/Debian - TP-Link Unmanaged 5-Port 2.5G Multi-Gigabit Desktop Switch, 802.3X Flow Control, 802.1p/DSCP QoS, Ideal for Small and Home Office with fanless design, Metal Casing, Plug and Play (TL-SG105-M2) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/422093367-1-port-2-5gb-ethernet-network-card-with-realtek-rtl8125b](https://www.desertcart.sk/products/422093367-1-port-2-5gb-ethernet-network-card-with-realtek-rtl8125b) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-08-16*