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

My use case is a personal development network with two high end desktop workstations, one with AMD Ryzen 9 and the other with Intel i7. Both are running Ubuntu Linux 22.04.2 PRO and I am using a Mikrotik CRS306-4S-1N switch. Both Desktop systems have this board and cable into the switch with 6COM 6C-SFP-10G-T SFP+ 10G RJ45 Adapters and CAT8 cabling. As soon as everything was plugged in the systems came right up and everything was fast and sweet. Don't forget to plug in the backhaul cable from the switch to your in-house network feed otherwise no DHCP and the 10G connections don't com up. Highly recommended. This is plug and play and the most practical sense. Installation time was about an hour and that include putting boards in two machines, running cables, attaching adapters and installing switch. "Settings/Network/Ethernet/Wired/enp11s0f0 showed connected at 10000 Mb/s immediately.

This is the second one I have purchased. It is a backup in case the one I currently have goes bad. I use this in my pfsense machine I build from an old HP SFF desktop. It's extremely stable and very fast throughput. I have used it in windows as well and the driver support is plug and play. I have never had an issue with it and love having dual connectivity as I use it to support multiple VLANS. This helps me maximize my home network. Very good value for the money.

Good card , works on Windows 11 but you REALLY have to install the driver from the link in QR code (for Windows 11 use setup.exe , not Asus thing or other) because the default driver installed by Windows works, but create a world of problems starting from taking about 10 minutes to apply any change to card setting up to connection disappear sometimes for a minute or two. Also in my case the connection for some reason 1400 on both ports (even the one that have no SFP+ module in it) instead of expected 10G , but since currently this is my only 10G device on the network besides the switch , all others 1GB I do not really care. But it strange.

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.

Taking one star off, I thought this card would do 2.5 gig - It does not, it is a chipset issue, not a driver issue. Not a problem, put the card into a server on my 10 gig network. Would have loved it to do 2.5 gig - no issues with the card, easy setup and it works. using in Proxmox, Checked on OpenSuse and it worked Speed was right on - though I really didnt check all that much - I dont notice any heat issues on the home server, with a NAS on it.

Windows 10, it worked out of the box. To get it to work on Linux, it took me a little long as it detected the card and showed the interfaces, but I had to dig through the startup log (dmesg) in order to find out that the drivers were not loading. Downloaded the drivers, installed them, and POOF! Working in Linux, too! I don't foresee myself needing to add anymore 10G NICs to any more of my devices, I would definitely consider re-ordering these. iperf3 results [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 1.06 GBytes 9.09 Gbits/sec 53 1.76 MBytes [ 5] 1.00-2.00 sec 1.09 GBytes 9.38 Gbits/sec 9 2.02 MBytes [ 5] 2.00-3.00 sec 1.09 GBytes 9.41 Gbits/sec 32 2.01 MBytes [ 5] 3.00-4.00 sec 1.09 GBytes 9.38 Gbits/sec 2 2.01 MBytes [ 5] 4.00-5.00 sec 1.11 GBytes 9.57 Gbits/sec 44 2.04 MBytes [ 5] 5.00-6.00 sec 1010 MBytes 8.48 Gbits/sec 153 1.99 MBytes [ 5] 6.00-7.00 sec 966 MBytes 8.11 Gbits/sec 131 2.01 MBytes [ 5] 7.00-8.00 sec 1.04 GBytes 8.97 Gbits/sec 15 2.01 MBytes [ 5] 8.00-9.00 sec 1.12 GBytes 9.59 Gbits/sec 66 2.02 MBytes [ 5] 9.00-10.00 sec 1.03 GBytes 8.81 Gbits/sec 163 2.03 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 10.6 GBytes 9.08 Gbits/sec 668 sender [ 5] 0.00-10.00 sec 10.6 GBytes 9.08 Gbits/sec receiver As you can see, there is some variation in the speeds, but seeing that this server is now live (I should have saved iperf results before I turned this server loose), but for the most part, I am getting 9+ Gbits per second. Damn impressive.

Solido como una roca

This card worked great for about 6 months, then one of the ports failed. The other still works but randomly starts disconnecting after a few hours of use.

I must say, that thise netcard are pretty good and are just working right out of the box. CachyOS (Arch Linux) found the card right away, no driver install needed. I got two of them, and have bought a pair of DAC Cables and have made direct connection between my PC. All I needed was to setup local ip adresse and up and running in no time. I used 10.0.0.1 for port 1, 10.0.0.2 for port 2, Gateway 10.0.0.10 and DNS 10.0.0.10, on the other card, I used 10.0.0.3 and 10.0.0.4 and again 10.0.0.10 for DNS and Gateway. If you want, you can either use bridge or bond to combine both ports on one of the netcard, so you instead of 10GbE get 20GbE out of the cards! Use arch wiki for how to or even just ask ChatGPT. Just remember, if you want to bind two ports to become 1, that this shall ONLY be done for 1 of the cards. I really recommend this under rated cards. Buy them and enjoy the fun with either 10GbE or 20GbE networking the EASY WAY.

Regardless of which combination of PCI-e slots and settings I used, I wasn't able to get this above 3gbps even using fibre cables and transceivers. Returned it and gave up.

Super

Funziona perfettamente. Utilizzata per il mio NAS

Those are 100 USD China Fake cards. Definitely not worth the 275 Eur price tag. If you need a cheap 10G RJ45 card you can buy those for cheaper somewhere else or just use a refurbished Genuine Intel card...