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10Gtek 10Gb PCI-E NIC Network Card, Single SFP+ Port, with Intel 82599EN Controller, Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA1(E10G42BTDA)
10Gtek

10Gtek 10Gb PCI-E NIC Network Card

Bottom line: The 10Gtek 10Gb PCI-E NIC Network Card ($49.99 on Amazon as of 2026-10-21 10:21 UTC): Genuine Intel 82599EN controller with I/O virtualization support; main trade-off: no 1G/2.5G/5G fallback, locked to 10G links only.

$49.99

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Buy on Amazon — $49.99 Compare to similar networking

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For home networking and Wi-Fi gear, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Genuine Intel 82599EN controller with I/O virtualization support
  • ✓ Single SFP+ port delivers full 10GbE via DAC, AOC or SFP+ modules
  • ✓ PCI-E x8 card fits both x8 and x16 slots
  • ✓ Includes full-height and low-profile brackets for SFF builds
  • ✓ 3-year warranty plus 30-day returns and lifetime tech support

Cons

  • ✗ No 1G/2.5G/5G fallback, locked to 10G links only
  • ✗ Card does not support hot-swapping
  • ✗ Windows 11 requires a manual Win10 driver workaround
  • ✗ QNAP/Synology users must contact seller before buying

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SpecPicks Verdict

SpecPicks scored 10Gtek 10Gb PCI-E NIC Network Card using a rating × review-volume × price-fit model applied to published specs and reviews across the networking category. 10Gtek's networking lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for networking of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key 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 82599EN controller which supports I/O virtualization and make the servers more stable.
  • Supports 10G, not support 1G/2.5G/5G; Single SFP+ port 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-1S 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.

Full Specifications

Brand10Gtek
ColorX520-10G-1S(1xSFP+)
Weight10g
Unit Count1 Count
Model Number8541551539
CompatibilityLinux
Mfr Part NumberX520-DA1(Intel-1pc)
Number of Items1
Compatible DevicesServer, Desktop
Data Link ProtocolEthernet
Data Transfer Rate10 gigabytes_per_second
Hardware InterfacePCIE x 8
EU Spare Part Availability Duration3 years
Full listing title10Gtek 10Gb PCI-E NIC Network Card, Single SFP+ Port, with Intel 82599EN Controller, Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA1(E10G42BTDA)

Ready to buy?

10Gtek 10Gb PCI-E NIC Network Card, Single SFP+ Port, with Intel 82599EN Controller, Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA1(E10G42BTDA) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $49.99

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

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10Gtek 10Gb PCI-E NIC Network Card, Single SFP+ Port, with Intel 82599EN Controller, Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA1(E10G42BTDA)
$49.99
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