GLOTRENDS ST7381 1-Port 10G RJ45 Ethernet Network Card with Intel X550 Controller, PCIE 3.0 X4 Interface, Support Windows 11/10/Windows Server/Linux/ESX/VMware ESXi(Not Support Mac OS)

Works great once drivers are installed in Windows 11.

This definitely works with TrueNAS core. Threw it in my server, booted up with no issues on the first try.

Excellent performance after a bit more trouble than should be necessary. And because of all that trouble I do not recommend this product for systems running Windows 11. Read on for the details.The problem: Windows 11 blocks some features of the drivers that ship with the device. They will install, but you'll be faced with relentless pop-up notifications informing you that windows has blocked part of the drivers from functioning and speed will be limited to 1 gigabit.After you've figured out that that doesn't work, use Windows Device Manager to uninstall the device and remove the dysfunctional drivers you shouldn't have just installed.You'll need to obtain the latest drivers from intel's website, where Intel informs you that only the base drivers are supported on W11. Attempting to use Intel's installation program will fail -- the installer will either do nothing or claim no intel network adapters are present.Instead, install the drivers using Windows Device Manager's "update driver wizard" by pointing it at the directory that contains them and selecting random sub-directories until you discover the right one, then ignoring the "unsigned driver" warning from Windows. And of course, every time you pick the wrong directory, you'll have to start over from the beginning. I'll save you the trouble and tell you it's "PROXGB."Congratulations: now you've got the device working, but intel's driver support agent will nag you to update the drivers. Don't try, the update will fail, and of course the driver support agent will nag you again later about the update.All of this assumes that you have a pcie x8 slot available for installation. Better check your motherboard before you buy. Many newer motherboards don't.I guess the price is right if you've got the patience, knowledge, and a compatible motherboard. In fact, these things probably work just fine under Windows 10 or Linux, but if your running Windows 11 I'd highly recommend getting something else, even if you do know what you're doing.

Great value for a quad 2.5 GBE network card. Fits perfectly in a micro form factor PC. Excellent for use in a firewall OS.

Doesn't work in Windows 11. I have downloaded drivers from Intel and from the manufacturer. I have followed the instructions. When I pick the folder instructed by the manufacturer, there is NO X520/X540 device to select in the list. I would share a screenshot, but that would require DOZENS of screenshots, as the driver selection when using "Have Disk" in device manager only shows a few devices at a time in the little selection window - and it can't be resized. I reached back out to the manufacturer for further assistance and have received nothing. Glad some of you have gotten yours to work, but mine doesn't work at all.

Got this sfp+ card to get high speed (10gb) data ports on my linux nas. Simple enough to plug in and it was detected automatically. Need to get sfp+ modules and the fiber cable to connect to the switch, but once you do it works great. Fast speeds, no issues so far with high speed transfers. Great cost effective option.

This thing has worked great so far. Just an easy drop-in upgrade to make my system 10g. I'm personally running manjaro linux, and it was literally plug and play no messing about with drivers needed. Speeds are exactly what you would expect.I would just make note to check available pci slots on your system. I had to shuffle a couple cards to get a x8 slot for this.Overall a solid card for a good value.

A 10 gigabit connection supports, roughly speaking, 1 gigabyte transfer speeds which is, again roughly speaking, about as fast as an in-home or private network will ever need, even with an optimized RAID. In short, it's a future proof connection. I have an expanding database--as databases do--and a couple of PCs that are not powerful enough to stand alone but are too powerful to just toss. With 10Gb cards, I can connect them in a useful way and can avoid building, for a few more years, the single computer that can handle everything. At the end of the day, I'm out about 10% of the cost of a full upgrade.