--- product_id: 33382921 title: "X520-10G-2S-X8" brand: "10gtek" price: "1230 kr" currency: NOK in_stock: true reviews_count: 13 category: "10 Gtek" url: https://www.desertcart.no/products/33382921-x520-10g-2s-x8 store_origin: NO region: Norway --- # 10Gbps blazing speed Dual SFP+ ports for versatile connectivity Intel 82599ES for rock-solid stability X520-10G-2S-X8 **Brand:** 10gtek **Price:** 1230 kr **Availability:** ✅ In Stock ## Summary > 🚀 Upgrade your network, upgrade your game — don’t get left behind! ## Quick Answers - **What is this?** X520-10G-2S-X8 by 10gtek - **How much does it cost?** 1230 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/33382921-x520-10g-2s-x8) ## 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 - • **Dual SFP+ Ports:** Seamlessly connect with high-performance DAC, AOC, or fiber modules for data center-grade networking. - • **Plug & Play Versatility:** Compatible with Windows Server, Linux, and VMware—future-proof your infrastructure with broad OS support. - • **Intel 82599ES Controller:** Industry-trusted chipset ensures stable, virtualized I/O performance for demanding server environments. - • **Blazing 10Gbps Throughput:** Experience ultra-fast data transfer that leaves 1G networks in the dust. - • **Compact & Flexible Installation:** Includes low-profile bracket for easy integration into small form factor cases or servers. ## Overview The 10Gtek 10Gb PCI-E NIC Network Card features dual SFP+ ports powered by the Intel 82599ES controller, delivering stable 10Gbps Ethernet connectivity. Compatible with Windows Server, Linux, and VMware, it supports PCI-E x8/x16 slots and includes a low-profile bracket for versatile installation. Ideal for professionals demanding high-speed, reliable network performance in data centers or advanced home labs. ## Description Buy 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): Network Cards - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Easy install! Great expansion card! - My system already had 10Gb ethernet, but I disliked the heat from the translation between SFP+ and RJ46 so I got this so I could just use a DAC cable between my system and the switch. No issues installing, I just had to download the driver from Intel and install it manually, otherwise it worked pretty quickly without issues. Tested getting full 10-gig speeds through iperf3 no problem. 10Gtek seems to be establishing themselves well in the industry. Great cables, wonderful adapters, and now solid NICs to add to the list of items of theirs I've gotten and used. All work solid and as expected. Review: Deployed on my linux box; vastly improved my network performance - I'm using this as a direct attached connection between my Linux box and my Ubiquiti core network switch. It's vastly improved the responsiveness of my network filesystem connections on my macs, and I'm quite happy with it. Zero problems connecting it; I'm on the latest AlmaLinux, and all it needed was configuration after boot. Going from a 1gig ethernet to this was like night and day. ## Features - Compatible with Windows Server 2003/ 2008/ 2012, Windows7/8/10*/Visa, Linux, ESX/ESXi*. Storage over Ethernet: iSCSI, FCoE, NFS. (Only by setting up Win10 driver correctly the NIC can work on Win11! See the main picture for more detail of installation.) - Equipped with high quality original Intel 82599ES controller which supports I/O virtualization and make the servers more stable. - Supports 10G, not support 1G/2.5G/5G; Dual SFP+ ports let you connect to 10 Gigabit SFP+ module/DAC/AOC for meeting the demands of data center environments. PCI-E X8 Lane is suitable for both PCI-E X8 and PCI-E X16 slots. - With profile bracket and additional low profile bracket that makes it easy to install the card in a small form factor/low profile computer case/server.NOT support hot swaping. - What You Get: 10GbE PCI-E X8 Card X520-10G-2S x1, Low-profile Bracket x1, 30 Days Free-returned, 3 Year Warranty and Lifetime Technology Support. PS: Due to the particularity in QNAP/Synology, for QNAP/Synology users, pls contact us before purchase. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01DCZCA3O | | Best Sellers Rank | #11 in Internal Computer Networking Cards | | Brand | 10Gtek | | Color | X520-10G-2S(2xSFP+) | | Compatible Devices | Server, Desktop | | Compatible Operating System Family | Linux, Windows | | Customer Reviews | 4.4 out of 5 stars 823 Reviews | | Data Link Protocol | Ethernet | | Data Transfer Rate | 10 gigabytes_per_second | | Hardware Interface | PCIE x 8 | | Item Dimensions L x W x H | 10.35"L x 6.42"W x 2.17"H | | Item Weight | 5.6 ounces | | Manufacturer | 10Gtek | | Mfr Part Number | 10Gtek X520-DA2 | | Minimum Required Operating System Version | Windows 7 | | Model Number | X520-DA2(Intel-1pc)(UK) | | Number of Items | 1 | | Product Dimensions | 10.35"L x 6.42"W x 2.17"H | | UPC | 603149407824 | ## Product Details - **Brand:** 10Gtek - **Color:** X520-10G-2S(2xSFP+) - **Compatible Devices:** Server, Desktop - **Compatible Operating System Family:** Linux, Windows - **Data Link Protocol:** Ethernet - **Data Transfer Rate:** 10 gigabytes_per_second - **Hardware Interface:** PCIE x 8 - **Item Weight:** 5.6 ounces - **Product Dimensions:** 10.35"L x 6.42"W x 2.17"H - **UPC:** 603149407824 ## Images ![X520-10G-2S-X8 - Image 1](https://m.media-amazon.com/images/I/61R4Uw22eJL.jpg) ![X520-10G-2S-X8 - Image 2](https://m.media-amazon.com/images/I/7102T9CmPjL.jpg) ![X520-10G-2S-X8 - Image 3](https://m.media-amazon.com/images/I/71NGTo-LpxL.jpg) ![X520-10G-2S-X8 - Image 4](https://m.media-amazon.com/images/I/61lZobzdefL.jpg) ![X520-10G-2S-X8 - Image 5](https://m.media-amazon.com/images/I/614Ty6G70YL.jpg) ## Available Options This product comes in different **Size, Style** options. ## 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 ### ⭐⭐⭐⭐⭐ Easy install! Great expansion card! *by G***U on April 7, 2026* My system already had 10Gb ethernet, but I disliked the heat from the translation between SFP+ and RJ46 so I got this so I could just use a DAC cable between my system and the switch. No issues installing, I just had to download the driver from Intel and install it manually, otherwise it worked pretty quickly without issues. Tested getting full 10-gig speeds through iperf3 no problem. 10Gtek seems to be establishing themselves well in the industry. Great cables, wonderful adapters, and now solid NICs to add to the list of items of theirs I've gotten and used. All work solid and as expected. ### ⭐⭐⭐⭐⭐ Deployed on my linux box; vastly improved my network performance *by S***N on August 20, 2026* I'm using this as a direct attached connection between my Linux box and my Ubiquiti core network switch. It's vastly improved the responsiveness of my network filesystem connections on my macs, and I'm quite happy with it. Zero problems connecting it; I'm on the latest AlmaLinux, and all it needed was configuration after boot. Going from a 1gig ethernet to this was like night and day. ### ⭐⭐⭐⭐⭐ Works great! *by C***N on February 14, 2020* I bought 3 of these cards for a couple Synology NAS devices (DS 1618+ and DS 2419+) and my main computer, mainly for faster media transfers and an attempt to edit 4K footage direct from my NAS in real time. The price is significantly more expensive here than buying direct from 10GTek and having it ship from HK and used NICs are apparently very cheap if you look around. I installed the cards in my computer and the DS 1618+ to start with. It was a painless experience and the small form factor bracket was easy to switch on for the Synology. From a networking standpoint there are many ways you can go about it. I opted for a Mikrotik switch with 4 SFP+ ports, which made things a breeze. You can plug directly from one device into another if they both have a 10Gb NIC but you'll need to do some configuration with static IPs. With more than 2 10Gb devices you'll want to get a switch. In terms of cabling, I was only doing short distance networking (7 meters max) so I went for SFP+ DACs. You can also network with a transceiver and RJ45 if you have an existing CAT6 or newer setup, or a multimode fiber, which is good for longer distance networking. The Synology connected to the internet & LAN immediately upon being switched on - completely plug-and-play. My computer wasn't and I don't have a DVD drive so I had to try to find the drivers online. You can essentially treat this as an Intel NIC for most intents and purposes so I went to Intel's website and downloaded the Intel® Ethernet Adapter Complete Driver Pack. That was useful because it not only installed the drivers I needed to be able to connect but also gave me tools to test that the connections were working properly. I've only done one test so far but immediately saw 3-4x transfer speed improvements. Before I was seeing about 113MB/s, bottlenecked by a 1Gb connection. I saw high 300s MB/s during a file copy from my NAS to my SATA SSD, equating to about 3Gb speeds. Your bottleneck will now be the speed of an HDD array or SATA (6Gb). You can achieve even faster speeds with NVMe to NVMe transfers. Overall, definitely happy with this card so far. Seems to be completely plug-and-play for most people. ## 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 --- ## 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.no/products/33382921-x520-10g-2s-x8](https://www.desertcart.no/products/33382921-x520-10g-2s-x8) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-18*