---
product_id: 52650747
title: "10Gtek® 10Gb PCI-E NIC Network Card for Intel X520-DA2, Intel 82599ES Controller, Dual SFP+ Port, PCI Express Ethernet LAN Adapter, Windows Server/Linux/VMware"
brand: "10gtek"
price: "€ 142.63"
currency: EUR
in_stock: true
reviews_count: 13
category: "10 Gtek"
url: https://www.desertcart.nl/products/52650747-10gtek-10gb-pci-e-nic-network-card-for-intel-x520
store_origin: NL
region: Netherlands
---

# 10Gbps dual SFP+ ports Intel 82599ES controller with SR-IOV & DDIO Wide OS compatibility (Win, Linux, VMware) 10Gtek® 10Gb PCI-E NIC Network Card for Intel X520-DA2, Intel 82599ES Controller, Dual SFP+ Port, PCI Express Ethernet LAN Adapter, Windows Server/Linux/VMware

**Brand:** 10gtek
**Price:** € 142.63
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your network game with pro-level 10Gbps speed and Intel precision!

## Quick Answers

- **What is this?** 10Gtek® 10Gb PCI-E NIC Network Card for Intel X520-DA2, Intel 82599ES Controller, Dual SFP+ Port, PCI Express Ethernet LAN Adapter, Windows Server/Linux/VMware by 10gtek
- **How much does it cost?** € 142.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/52650747-10gtek-10gb-pci-e-nic-network-card-for-intel-x520)

## 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

- • **Versatile Form Factor:** Includes both full height and low profile brackets to fit standard desktops and servers, ensuring flexible deployment options.
- • **Blazing 10Gbps Dual Ports:** Experience ultra-fast, reliable network speeds with dual SFP+ connectivity—perfect for high-demand professional setups.
- • **Intel-Powered Performance:** Harness the power of the Intel 82599ES controller featuring SR-IOV and Intel DDIO for optimized data flow and reduced latency.
- • **Pro-Grade Stability & Speed:** Trusted by professionals for consistent multi-gigabit throughput and rock-solid connections, even under heavy file transfers.
- • **Cross-Platform Compatibility:** Seamlessly integrates with Windows (including Windows 11 with setup), Linux, VMware, and more—future-proof your network infrastructure.

## Overview

The 10Gtek X520-10G-2S-X8 is a high-performance 10Gbps PCIe network card featuring dual SFP+ ports powered by the Intel 82599ES controller. It supports advanced virtualization technologies (SR-IOV, Intel DDIO) and offers broad OS compatibility including Windows, Linux, and VMware. Designed for both desktops and servers with flexible bracket options, it delivers stable, ultra-fast network connectivity ideal for demanding professional environments.

## Description

High-performance 10Gb PCI-E network card with dual SFP+ ports, Intel 82599EN controller, supports Windows, Linux, VMware, enhanced network speed and reliability.

Review: Fantastic speed - works great on Windows 11 - Having been upgraded to Vodafone Full Fibre 910 service, I have been installing OM3 Fibre Optic cables in my house to get this amazing speed to the Windows 11 PCs in various rooms. The card was well packaged and installed easily onto my Aorus X670 motherboard. I also bought the 10Gtek SFP+ transceiver from desertcart to plug into the slot on this Network card. It all works amazingly well! I am now typically getting in excess of 900Mbps on my desktop using this 10Gtekcard. See screenshot. Fow the driver installation on Windows 11, there is a video on the desertcart page. It is not the easiest video to follow - the steps happen very quick - however the needed information is there. I used my video player stop button & rewind a lot to understand what to do. But do perservere - it is worth it!!! Since installation, connection is fast and stable. Very Please!!!
Review: Excellent piece of kit! - After a nightmare with Mellanox ConnectX 3 and HP NC552SFP+ cards either not working, incompatible or constantly crashing, I installed this Intel X-520 (82599) based card into my Win11 Gigabyte Z390 system. Finding drivers was a slight mission but once installed, this card worked like a champ. Tested with both DAC SFP+ and OM4 multimode fibre (Using a Mellanox SFP+ transceiver) and it ran consistently - no errors, no disconnections and excellent throughput. Tested with single / contiguous 120Gb files as well as folders containing 100Gb of small (3 & 4Mb) files, I got about 3.5 to 4.5Gbps consistent throughput. Was hoping for a bit more but will next be tweaking stuff like flow control, MTU, Jumbo frames etc. Disk IO is a bottleneck, even using EVO990 Pro NVME drives. I tested direct PC to PC connections using a DAC, then via switch (DAC on PC1, fibre on PC2) using the amazing Sodola 6 port 10Gbe managed switch sold here on desertcart for a ludicrously cheap £65 (as at Aug24). It was OK on crossover but really shone with the SFP switch. Highly recommend this card and really impressed with it. To be fair to Mellanox, their dual SFP+ card is excellent but it seems there's a major compatibility issue between Gigabyte boards (especially Z290/390/490 chipsets) and ConnectX cards. The only time it works is in a 16x PCIe slot. It will NOT work in an 8x slot due to lanes limited to 4. No way I'm dumping my RTX4070 so this 10GTek card came as a huge blessing.

## Features

- Attention: 1) If you use it for Windows11, you should install the Windows 10 driver and follow the direction of "how to set up Windows 11" to set up. 2) The Dell and HPE servers require MCU info matching the host OS; however, this NIC doesn't satisfy. Please contact us before making a purchase.
- NOTE: NON SUPPORT 1.25G SFP; NON SUPPORT HOT SWAPING!
- Controller: Intel 82599ES controller, supports single-root I/O virtualization (SR-IOV) and Intel Data Direct I/O Technology (Intel DDIO) to improve network performance.
- System: Windows Server 2012/2016/2019, Windows7/8/10, Linux, VMware ESX/ESXi 5/6/7, FreeBSD 11/12/13/14, Ubuntu 20/22.
- Spec.: Dual SFP+ ports, connect to SFP+ modules/DAC/AOC. Full height and low profile bracket for standard computer and servers.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | 10Gtek |
| Product Dimensions | 26.29 x 16.31 x 5.51 cm; 158.76 g |
| Item model number | X520-DA2(Intel-1pc)(UK) |
| Manufacturer | 10Gtek |
| Colour | 10GbE NIC |
| Operating System | Linux,Windows |
| Are Batteries Included | No |
| Item Weight | 159 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** 10Gtek
- **Hardware interface:** PCIE x 8
- **Colour:** 10GbE NIC
- **Compatible devices:** Desktop
- **Data link protocol:** Ethernet, Gigabit Ethernet
- **Data transfer rate:** 10 Gigabytes Per Second
- **Item weight:** 0.35 Pounds
- **UPC:** 603149407824
- **Manufacturer:** 10Gtek

## Images

![10Gtek® 10Gb PCI-E NIC Network Card for Intel X520-DA2, Intel 82599ES Controller, Dual SFP+ Port, PCI Express Ethernet LAN Adapter, Windows Server/Linux/VMware - Image 1](https://m.media-amazon.com/images/I/61R4Uw22eJL.jpg)

## Questions & Answers

**Q: What's the difference between the x540-t2 and x550-t2 ?**
A: The X520 and X540 have a PCIe 2.0 x8 interface, which has 32Gbit/s bandwidth.
The X550 has a PCIe 3.0 x4 interface, which has 32Gbit/s bandwidth.

The single-port versions may be used in slower slots: X520-T1/DA1 or X540-T1/DA1 will work in a PCIe 2.0 x4 slot (at 16Gbit/s); the manual says the T550-T1 should work in a PCI 2.0 x4 slot as well, although I haven’t tried it.

**Q: Has anyone actually gotten close to the 10gbps connection speed for this card?  pcie 2.0 has limit of 5 gt/s or about 4gpbs max.  so can it be 10gb?**
A: The card is PCIe 2 with x8 lanes, which is 4 GigaByte per second. 4 GigaByte is the same as 32 GigaBit, so it should handle 10 GigaBit just fine.

**Q: Will this card negotiate down to a pcie gen 3 x2?  i think my only free x4 slot only runs in x2 mode which is why i'm asking.**
A: No, please kindly note that the X550-T1 supports PCIe v3.0 (8.0GT/s) (Compatible with 2.0 and 1.1) X4/X8/X16 Lane, and it does not support X2.

**Q: does this work with windows 11?**
A: I have not gotten it to work with windows 11. The seller says to install drivers 26.7 but those dont work

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic speed - works great on Windows 11
*by I***N on 16 October 2025*

Having been upgraded to Vodafone Full Fibre 910 service, I have been installing OM3 Fibre Optic cables in my house to get this amazing speed to the Windows 11 PCs in various rooms. The card was well packaged and installed easily onto my Aorus X670 motherboard. I also bought the 10Gtek SFP+ transceiver from Amazon to plug into the slot on this Network card. It all works amazingly well! I am now typically getting in excess of 900Mbps on my desktop using this 10Gtekcard. See screenshot. Fow the driver installation on Windows 11, there is a video on the Amazon page. It is not the easiest video to follow - the steps happen very quick - however the needed information is there. I used my video player stop button & rewind a lot to understand what to do. But do perservere - it is worth it!!! Since installation, connection is fast and stable. Very Please!!!

### ⭐⭐⭐⭐⭐ Excellent piece of kit!
*by B***. on 7 August 2024*

After a nightmare with Mellanox ConnectX 3 and HP NC552SFP+ cards either not working, incompatible or constantly crashing, I installed this Intel X-520 (82599) based card into my Win11 Gigabyte Z390 system. Finding drivers was a slight mission but once installed, this card worked like a champ. Tested with both DAC SFP+ and OM4 multimode fibre (Using a Mellanox SFP+ transceiver) and it ran consistently - no errors, no disconnections and excellent throughput. Tested with single / contiguous 120Gb files as well as folders containing 100Gb of small (3 & 4Mb) files, I got about 3.5 to 4.5Gbps consistent throughput. Was hoping for a bit more but will next be tweaking stuff like flow control, MTU, Jumbo frames etc. Disk IO is a bottleneck, even using EVO990 Pro NVME drives. I tested direct PC to PC connections using a DAC, then via switch (DAC on PC1, fibre on PC2) using the amazing Sodola 6 port 10Gbe managed switch sold here on Amazon for a ludicrously cheap £65 (as at Aug24). It was OK on crossover but really shone with the SFP switch. Highly recommend this card and really impressed with it. To be fair to Mellanox, their dual SFP+ card is excellent but it seems there's a major compatibility issue between Gigabyte boards (especially Z290/390/490 chipsets) and ConnectX cards. The only time it works is in a 16x PCIe slot. It will NOT work in an 8x slot due to lanes limited to 4. No way I'm dumping my RTX4070 so this 10GTek card came as a huge blessing.

### ⭐⭐⭐⭐⭐ Easy to install, and working once the drivers are installed.
*by T***M on 25 May 2025*

Using this as a 10Gb NIC on a Windows 11 PC. Once physically installed, the device is recognised by Windows. It works out of the box, but only at 1Gb. Download and install the drivers from 10Gtek's website, and it was offering 10Gb after the first reboot. Works well and good value for money.

## Frequently Bought Together

- 10Gtek 10Gb PCI-E NIC Network Card, Dual SFP+ Port, with Intel 82599ES Controller, PCI Express Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA2(E10G42BTDA)
- 10GTEK 10GBase-SR SFP+ LC Transceiver, 10G 850nm Multimode SFP Module, up to 300 Meters, for Cisco SFP-10G-SR, Meraki MA-SFP-10GB-SR, Ubiquiti UniFi UF-MM-10G, Fortinet, TP-Link and More, Pack of 2
- FLYPROFiber- LC to LC Fiber Patch Cable 1M/3ft, OM3 Multimode Fiber Optic Cable Cord, 10GB/40GB, Duplex, 50/125um, LSZH, Options: 0.2m-200m

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-11*