1Gb PCI-E NIC Network Card for Intel I350-T2V2,10MbE/100MbE/1GbE Copper Dual RJ45 Ports, with Intel I350-AM2 Chip,1GbE PCI Express 2.1 X4 Ethernet Adapter Support Windows/Linux/VMware

I ordered the X550-T2 for my pfSense build, but the first card arrived defective. I reached out to the seller, and they immediately sent me a replacement with no hassle.The new card works flawlessly in our pfSense setup, delivering reliable 10Gb performance. While the product is great, the highlight of my experience was the seller’s exceptional customer service. They resolved the issue quickly and made the process stress-free. Highly recommend both the NIC and this seller!

Needed to upgrade my internet speed and this easy to install component is doing the job!Great price and value.

Bought this to replace a dead ethernet port on my motherboard. I liked the fact that this model had a heatsink since heat can can induce thermal throttling for these types of things and in terms of a network adapter, that will affect the transfer speeds (i.e. reviews complaining about thermal throttling for USB network adapters).Also it was cheap enough that I wouldn't feel too bad if it didn't work. A few months later after installing and it's still going strong. I get sustained 2.5gbe speeds out of it transferring files within my network to and from my server so I can't really complain.Only minor negative I can think of is it has a bright red activity light that constantly flashes on the inside of your case. This is a problem if you have a windowed side panel like I do. Not a deal breaker and can be addressed, but annoying nonetheless.

Very cheap card that does what it's supposed to (which is to transfer data faster than a 1gb nic).I haven't saturated the full 2.5gb speed, due to the slow hard-drives in my server, but it definitely gets at least 1.5gb throughput.I bought a pair of these, one for my primary PC, and one for my linux server (running Amahi based on Fedora 19), with them connected via a 2.5gb managed switch.Install in Windows 10 was literally just "plug and play". Plugged it in, let windows boot, and it worked right away.Install in my linux server was another matter, but that's predominantly due to the older version of Fedora.The linux drivers can be downloaded online, and they may already be included in newer linux distros.I couldn't install the precompiled drivers since they didn't have a variant suitable for Fedora 19, so I downloaded the drivers from https://github.com/awesometic/realtek-r8125-dkmsThe autorun.sh didn't work for my distro, and in fact froze-up my server, so I went the DKMS path. I then found that I couldn't compile the drivers because I was on a minor rev of Fedora 19 and there were no headers available for a matching version, so the build complained, so I updated my server to the next fullt supported release with headers (without doing a major update), and tried again.However, I found that since Fedora 19 is based on a now relatively old linux release, and the driver code had been updated for new linux releases, that there were build errors when building against the kernel headers for Fedora 19.Fortunately, being a software engineer/architect by trade, it was a relatively easy fix. There was an unnecessary header file include, and another error that I was able to easily work around. I'll try to submit my changes back to github and make a pull-request, since there's no real reason the driver can't also support older distros.After those couple of fixes I was able to build the drivers, and install, without issue, and the card has been working well since.I'll actually be upgrading my server soon, and although the new motherboard will have a 2.5gb NIC built-in I may try to use this card in tandem, and run them trunked together. The server will be switched to TrueNAS (based on OpenBSD) and if I do decide to use this card on that system then I'll update this review if I run into any issues.

This nic works great with Hyper-v. Running a linux firewall vm on hyper-v through this nic. Works great. Get latest drivers from realtek's official site.Used the included low profile adapter in a small form factor system. Easy swap and install from the default full size bracket.

Needed a 10Gb nic to use in a Dell R220 for pfSense bare metal. ISP ONT comes in via a 10GBase-T direct to this card, and it runs 2Gb Symmetrical fiber. No issues with this in pfSense, picked up the card right away and only needed a simple interface adjustment to connect. I can increase speeds later without issue as long as my R220 and pfSense can support it. Solid choice!

Installation went smoothly. Worked OK initially but failed suddenly after a few days of use. Returned defective unit.

The thing to know about this card is it supports multiple speeds. I had a router I built that had a card with the X540 chip in it. The issue is that the X540 only supports 100Mbps, 1000Mbps, and 10Gbps. This card supports 2.5Gbps and 5Gbps. That is something that is important when setting up your network for multi-gigabit. Do yourself a favor and just spend the extra money for this card. Works great with OPNsense, just have to manually set the speed.