H!Fiber 10Gb SFP+ PCI-E Network Card NIC, Compare to Intel X520-DA1 (E10G42BTDA), with Intel 82599EN Chip, Single SFP+ Port, PCIe X8, Ethernet LAN Network Adapter Support Windows/Linux/VMware

April 28, 2026 Update: I've been using these network cards from OPNsense version 23.7.10_1-amd64 through version 26.1.2-amd64 with no problems. The performance and reliability have been superb. Original December 31, 2023 Review: Using a fresh OPNsense install (version 23.7.10_1-amd64) this network card was detected right away and I had no problems installing and configuring to work with OPNsense. I have two of these network cards, along with two of the SFP+ RJ45 transceivers listed below, installed in a custom PC used for a router; the transceiver worked great with this network card (I needed a transceiver that could auto-negotiate at 2.5Gb). https://www.amazon.com/dp/B089CWVHX4 I don't have a 10Gb home network setup yet, so I was only able to test up to 2.5Gb for home network; this network card worked great. I have 1Gb+ internet service and had no problem consistently achieving 1Gb+ download speeds with this network card and transceiver. I was previously having performance issues with network cards that used RTL8125B chips and I225-V chips. I saw a number of OPNsense forums mentioning these X-520/82599 based network cards are reliable, reasonably priced, and have OPNsense/FreeBSD driver support, so I wanted to try 82599 and see if that solved my performance issues. So far it has been great and I wish I would have started with this configuration instead of wasting so much money on other network adapters.

I have multiple Jellyfin servers, and installed 1 10g nic in the Windows platform and 1 in the Ubuntu platform. Ubuntu connected with native drivers and Windows was an easy download, install BAM, both of these budget 10g nic's using DAC cables are getting me 300+ transfer speeds. As for how long they last, well I'll update a review if reliability becomes an issue. They do get hot when loaded for long periods, so I placed a 40mm Noctua blowing directly on just one, so if it dies, temp specifically won't be the factor. So far, a fantastic product, priced right and super fast shipping!

I requested the H!Fiber 10Gb SFP+ PCI-E Network Card NIC, Compare to Intel X520-DA1 (Intel E10G42BTDA), hoping that it would work in my WIN 7 machine. YEA! It did and I did not have to manually load any driver. Automatic plug-and-play for complete functionality. Now, I won't be relegated to days when backing up my larger HDDs and files. How nice!

tested with: -10Gtek 10GBase-SR SFP+ LC Transceiver, 10G 850nm Multimode SFP Module - two switches QSW-2104-2S - 10Gtek 10Gb SFP+ PCI-E Network Card NIC, Compare to Intel X520-DA1, with Intel 82599EN Chip, Single SFP+ Port, PCI Express X8, Ethernet Converged Network Adapter Support Windows Server/Linux/VMware - Linux OpenSUSE Tumbleweed work like a charm.

Works great without issue if using a known Intel-compatible SFP+ transceiver module.

Had to reset BIOS after the install - don't know why and how but boot order changed after the installation. Anyway, 10Gbps works, no problems at all in CentOS 9 Stream.

Verified working on Windows 10 PC, Synology RS1219+ and Dell PowerEdge R710 running Proxmox. All systems detected without needing any additional driver installation or configuration..

The driver disk appears to be an after thought, and I couldn't read it in any drive I had, installation manual wasn't helpful. -- but downloaded the Intel driver and it's been working great.

Todo correcto En un HP Compaq 6200 Pro SFF PC con ESXi 7

Super

Funziona perfettamente. Utilizzata per il mio NAS

Wird problemlos vom Synology DS1618+ mit einem 10G DAC-Kabel (2m) zu einem Zyxel XGS1210-12 unterstützt. Ich habe auch keine Kompatibilitätswarnung bekommen, wird also als Intel-PCI-Karte erkannt. Die Karte ist übrigens von 10Gtek (das steht zumindest drauf), die beiden Firmen gehören wohl zusammen... Das System (NAS als auch Switch) erwärmit sich nicht mehr wie mit dem 10G Kupferkabel/NIC das ich zuvor probiert habe. Wenn 10G, dann unbedingt so eine Karte mit DAC-Kabel (nahezu keine zusätzliche Erwärmung) oder Glasfasermodule+Kabel wenn man mehr als 1...2m Anschlußlänge braucht (wird etwas wärmer, aber kein Vergleich zu Kupfer). Kostet am Ende auch nicht mehr als ein Setup mit Kupferkabel, man erkennt aber schnell, dass diese Lösung definitiv länger durchhalten sollte. Mehr kann ich bislang nicht sagen, Stabilität wird erst der Langzeit-Test zeigen...

le périphérique n'est pas compatible avec tout les SFP, de plus au bout de trois jour d'utilisation mon pc c'est arrêter net quand j'ai voulu le redemarré il ne voulait plus rien savoir obliger de débrancher cette fameuse carte j'ai voulu la rebrancher pour être sur que c'était bien celle-ci qui était en defaut et mon pc c'est mit a fumer, je vous conseille vivement la Asus qui malgrer sont prix ne brulera pas votre PC