10Gtek 10/100/1000Mbps Gigabit Ethernet PCIe Network Card, Dual Copper RJ45 Port with Intel 82576 Chip, PCI Express 2.0 X1, Compare to Intel E1G42ET

I have purchased 3 of these at this point. Works like a charm!

La tajerta funciona tiene 2 puertos independientes, pero no importa si usas linux o windows, la tajeta dice que puede funcionar a 1gigabit, pero jamas enlaza a 1gbit, enlaza a 100mbit, ahi mismo donde otras tarjetas funcionan bien a 1gbit, esta no.

Use it for pfsense and work right out of the box

In my homelab, I have a pretty robust server based around Proxmox 7.1, an AMD 5950X and 128GB of RAM. It's a sweet little playground. I wanted to play around with virtualized firewalls, particularly PFSense. The cheapest way I could find to do it was by adding NIC's to my existing server. I selected this dual NIC primarily because it used an x1 PCIe interface. My mainboard has two of these slots. The 4 port version is an x4 PCIe and my mainboard has none of these, meaning I'd have to use the x16 slot. I generally prefer to reserve my higher end x16 PCI slots for more capable hardware, not a basic 1G multi-NIC. Install was standard PCIe, about as simple as it gets. I read the reviews indicating compatibility with Proxmox and I can attest that it works well in my 7.1 build. I had the typical issue where Linux's dynamic network interface monitoring feature jacked up my interface name and bridge configuration. Easily fixed with a trip to /etc/network/interfaces though. (And to be sure, this is a Linux issue, not a hardware one.) I've had my setup going for a few months now with no troubles. I don't know much about this network card, such as who makes it or where to get drivers that I didn't need in Proxmox. That hasn't seemed to matter. Oh, and if you're interested in virtualized firewalls, I'd encourage you to explore it. I've had a lot of fun with PFSense so far.

First, let me say that I'm an IT professional with over 30 years of experience. I know what I'm doing when it comes to building computers and firewall systems! I bought these cards after reading that other buyers had used them with pfSense without issues in the reviews. Unfortunately, none of mine would work out of the box with pfSense, OPNsense, IP Fire, or any other BSD or Linux based firewall I've tried (I tried 7 in all). I've tried all 3 cards I bought in 3 different computers, so I know it isn't the motherboard that's at fault. I have a hard time believing that all 3 cards I bought are defective, but it sure looks that way. If these cards don't work in a Windows box, I'm sending them back! I was going to try loading the drivers included in the box, but the driver CDs don't work, either. I've tried all 3 of those in 3 different drives on 3 different computers. Complete waste of my hard-earned money! Edit: After leaving my review above, I was contacted by the seller. They were apologetic that the NICs didn't meet my needs and offered a full refund, which I gladly accepted, without trying them in Windows. We made arrangements for me to ship them back, and I was refunded my money once the cards arrived. I did have to pay to ship the cards back, but I'm out a LOT less than I was before (less than the cost of one card). I will not hesitate to buy other products from this seller again. I must give them kudos for doing their best to rectify the situation! I appreciate the integrity this shows on their part.

After multiple hours of trouble shooting, one of the NICs would always link at 100Mbps.