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),2-Pack

It works and works well with those SFP+ cables that are cheap from Amazon.

Great card so far. Works with either fiber sfps, 10G copper sfps or with DAC cables. One caveat with Windows 11: I had to find and install the older Intel x510 drivers for it to be recognized and work. Linux (Pop OS 22.04 LTS) had the drivers and libraries available natively. As far as stability and connectivity is concerned, zero issues so far. A quick Google search found an old Redfit article with a link to the driver pack, so 10 minute fix.

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.

Works great and provides 10GB speeds in my home lab

I got it working well enough on my pc on windows 11. You just have to make sure to go out and get the right drivers or this card will not work.

Great NIC with a solid chipset that are fast,reliable and well supported. Note that Windows 11 does not natively support this NIC, so visit Intel and get the driver and keep it handy. It was plug and play with TrueNas Scale. I've since got other products from 10Gtek, they make great stuff. Highly recommend.

Can confirm the device works properly with truenas no drivers needed for dragonfish. Does not work with windows at all with updated drivers even rolling back and trying older versions does not work properly intel has dropped support for this card and following guides for this exact NIC provided me better speeds on windows but still not 10gbps only at max 1.6gbps. I’ve been able to validate this card to 2.5gbps on true nas but not faster due to not having another 10gbps NIC. Support took 1-3 days to respond on each message and kept trying to tell me it was my network or my NIC on the other side even though my network and NIC have been validated at higher speeds then their card gives. Windows users should not buy this card, I haven’t tried it on ESXI but for personal use most users won’t need this if they are running 1-2 VMs. If you don’t mind hunting the driver down and having your old NIC no longer work then this card would be for you, but this card on windows gave me to much headache after swapping out around 15 different drivers and driver version on top of that. Keep in mind I am using windows 10. From reading this card may require version 25 of the intel network driver set but I haven’t gotten those to work, other have so your luck may vary. Hence 3/5 since I have gotten this to partially to work on other systems just not windows.

La tarjeta funciona perfectamente a 10 Gb

Excellent, plug and play in true nas and chineese x99 motherboard with xeon processor. Connected to udm.