2.5Gb PCIe Network Card with Intel I226-V Chip, 2.5GBase-T Network Adapter NIC, PCIe 3.1 X1, PCI Express Gigabit Ethernet Card for Windows 10/11, Linux Kernel 5.16.18/RHEL8.6, VMware ESXi8.0

I have an older PC that has been repurposed to be my NAS using Unraid. I purchased this to replace an intel based 2x1Gbps card that was running as an aggregated LACP bond. It took a little bit to learn how to get Unraid to make this the primary NIC, but that's not the card's fault (it wasn't really that hard, I am just not familiar with Unraid just yet). After installing the card and getting it connected to my Ubiquiti Unifi Cloud Gateway Max, I ran In iperf3 test to another Unraid system on the network. I am no network engineer, but I'm getting "close enough" to the advertised maximum bandwidth to make me very happy. My iperf3 results are below: iperf3 -c 10.0.20.21 Connecting to host <targetIP>, port 5201 [ 5] local <sourceIP> port 58840 connected to <targetIP> port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 282 MBytes 2.36 Gbits/sec 0 311 KBytes [ 5] 1.00-2.00 sec 278 MBytes 2.34 Gbits/sec 0 308 KBytes [ 5] 2.00-3.00 sec 279 MBytes 2.34 Gbits/sec 0 311 KBytes [ 5] 3.00-4.00 sec 278 MBytes 2.34 Gbits/sec 0 305 KBytes [ 5] 4.00-5.00 sec 280 MBytes 2.35 Gbits/sec 0 308 KBytes [ 5] 5.00-6.00 sec 278 MBytes 2.33 Gbits/sec 0 305 KBytes [ 5] 6.00-7.00 sec 280 MBytes 2.35 Gbits/sec 0 308 KBytes [ 5] 7.00-8.00 sec 278 MBytes 2.33 Gbits/sec 0 311 KBytes [ 5] 8.00-9.00 sec 279 MBytes 2.34 Gbits/sec 0 308 KBytes [ 5] 9.00-10.00 sec 278 MBytes 2.33 Gbits/sec 0 5.66 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 2.72 GBytes 2.34 Gbits/sec 0 sender [ 5] 0.00-10.00 sec 2.72 GBytes 2.34 Gbits/sec receiver I may try to set up jumbo frames (I don't know if that' still a good way to increase throughput, but I seem to remember 'back in tha day' it being one way to improve performance) but I'm not sure. For now, it gave me what I wanted: a very affordable and fast speed boost on my small home network.

Detected fine in an Asus AMD x570 motherboard. No windows 10 drivers automatically found. Unfortunately Intel's website makes it a bit harder than it should be to find drivers. Search for "Intel Network Adapter Driver for Windows 10". Version 29.1 installed without issue. I ordered a second one and will update review if there are any problems. Edit: Also working fine on another ASUS AMD x570 motherboard on windows 11, a Gigabyte A520 board on windows 10, and an ASUS Intel H770 board running Debian Linux. 2.5 GB link throughput: [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 284 MBytes 2.38 Gbits/sec [ 5] 1.00-2.00 sec 283 MBytes 2.37 Gbits/sec [ 5] 2.00-3.01 sec 284 MBytes 2.37 Gbits/sec [ 5] 3.01-4.01 sec 281 MBytes 2.35 Gbits/sec [ 5] 4.01-5.01 sec 284 MBytes 2.37 Gbits/sec [ 5] 5.01-6.00 sec 279 MBytes 2.37 Gbits/sec [ 5] 6.00-7.00 sec 283 MBytes 2.37 Gbits/sec [ 5] 7.00-8.01 sec 284 MBytes 2.37 Gbits/sec [ 5] 8.01-9.01 sec 281 MBytes 2.35 Gbits/sec [ 5] 9.01-10.01 sec 284 MBytes 2.37 Gbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 5] 0.00-10.01 sec 2.76 GBytes 2.37 Gbits/sec sender [ 5] 0.00-10.02 sec 2.76 GBytes 2.37 Gbits/sec receiver 1GB link throughput: [ ID] Interval Transfer Bitrate [ 5] 0.00-1.01 sec 115 MBytes 962 Mbits/sec [ 5] 1.01-2.01 sec 107 MBytes 893 Mbits/sec [ 5] 2.01-3.01 sec 113 MBytes 943 Mbits/sec [ 5] 3.01-4.01 sec 113 MBytes 942 Mbits/sec [ 5] 4.01-5.00 sec 111 MBytes 944 Mbits/sec [ 5] 5.00-6.01 sec 112 MBytes 940 Mbits/sec [ 5] 6.01-7.01 sec 111 MBytes 929 Mbits/sec [ 5] 7.01-8.01 sec 112 MBytes 941 Mbits/sec [ 5] 8.01-9.01 sec 112 MBytes 941 Mbits/sec [ 5] 9.01-10.00 sec 111 MBytes 944 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 5] 0.00-10.00 sec 1.09 GBytes 938 Mbits/sec sender [ 5] 0.00-10.01 sec 1.09 GBytes 936 Mbits/sec receiver

I installed this card and downloaded the corresponding driver, but I was unable to connect to the internet. My computer kept showing an “unidentified network” error. I switched back to the onboard Gigabit LAN connection, and it started giving me the same issue. After nearly three hours of frustration, I removed the card completely. Even after removing it, I still couldn’t get online through the onboard LAN connection. It appears this card changed or corrupted the network settings on my computer. At the very least, this product needs better instructions and easier driver access. How hard would it be to include a simple QR code that links directly to the correct driver? Amazon should do a better job removing products that consistently receive bad reviews and are known to cause problems. This card was a complete waste of time and caused more issues than it solved.

Card works exactly as it’s supposed to, it was essentially a plug and play situation. Very happy with this purchase.

It was easy to install and comes with a little screwdriver so I could change the bracket for a small half height slot. Just needed to enable the PCI slot in the BIOS and it was seen by Proxmox and it works well with Ceph. It was recommended by Copilot and has worked well, better than the USB C 2.5Gb adapter. It was cheaper than the USB C adapter as well. Well packaged had a little cover on the PCI fingers, make sure you take it off before you try and install it. I works with HP and Dell SFF computers.

Fast delivery! This i226-V works great with my vm pfsense running on Proxmox. No issues setting up.

This card reports the connection speed as 2.5Gbps, but it performs close to 100 Mbps. See the iperf3 results: [ 5] 0.00-1.01 sec 7.50 MBytes 62.6 Mbits/sec [ 5] 1.01-2.01 sec 11.5 MBytes 96.5 Mbits/sec [ 5] 2.01-3.00 sec 11.2 MBytes 94.7 Mbits/sec [ 5] 3.00-4.00 sec 11.4 MBytes 95.3 Mbits/sec [ 5] 4.00-5.00 sec 11.4 MBytes 95.2 Mbits/sec [ 5] 5.00-6.01 sec 11.2 MBytes 94.3 Mbits/sec [ 5] 6.01-7.00 sec 11.1 MBytes 93.4 Mbits/sec [ 5] 7.00-8.00 sec 11.1 MBytes 93.5 Mbits/sec [ 5] 8.00-9.00 sec 11.2 MBytes 94.5 Mbits/sec [ 5] 9.00-10.00 sec 11.2 MBytes 94.3 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 5] 0.00-10.00 sec 109 MBytes 91.4 Mbits/sec sender [ 5] 0.00-10.05 sec 109 MBytes 90.6 Mbits/sec receiver A different card on the same computer and the same switch perform as expected. [ 7] 0.00-1.00 sec 283 MBytes 2.36 Gbits/sec [ 7] 1.00-2.01 sec 281 MBytes 2.35 Gbits/sec [ 7] 2.01-3.01 sec 280 MBytes 2.35 Gbits/sec [ 7] 3.01-4.01 sec 281 MBytes 2.35 Gbits/sec [ 7] 4.01-5.01 sec 281 MBytes 2.35 Gbits/sec [ 7] 5.01-6.00 sec 280 MBytes 2.35 Gbits/sec [ 7] 6.00-7.01 sec 281 MBytes 2.35 Gbits/sec [ 7] 7.01-8.00 sec 279 MBytes 2.35 Gbits/sec [ 7] 8.00-9.01 sec 282 MBytes 2.35 Gbits/sec [ 7] 9.01-10.01 sec 280 MBytes 2.35 Gbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 7] 0.00-10.01 sec 2.74 GBytes 2.35 Gbits/sec sender [ 7] 0.00-10.01 sec 2.74 GBytes 2.35 Gbits/sec receiver

This eventually worked quite well once I figured out a few things. For starters, when plugged into my PCIe X1 port, the lights went on but Windows never detected a device at all. I thought it was defective, but U moved it to an X16 port and suddenly Windows detected the device. However, Windows still had no idea what type of device it was and did not automatically download drivers even though I had my original network card/connection still available. It was simply an exclamation point "Unknown network device". Since the product comes with zero drivers or even much in the way of documentation, I had to go hunting for the chipset and compatible Intel I226-V drivers. Once that was installed, all worked as expected and speed tests show a nice bump. The only problem I have with this card is that it has VERY bright lights that flash constantly. Even when the computer is OFF! I've turned off Wake from LAN but it still stays flashing away while the PC is off. Very annoying.

Worked great on a FreeBSD system

Aprés 2 mois d'utilisation la carte est hs. les 2 premières semaines, aucun problème, débit très correct. Du jour au lendemain la carte se désactive. Puis plus rien. Je ne sais pas si il y a un SAV, mais je ne le recommande pas pour l'instant.

2.5Gbpsで大満足している者のレビューです。 ASUS PRIME Z390-Aで使っていますが、通信がとても快適になりました。

Works well under FreeBSD/TrueNAS Core 13.3 out of the box. No drivers required. Arrived well packed. The set contains a short and a long bracket, a screw and even a mini screwdriver that you can see on the photo. More than expected. I recommend the seller.

Works great to SFP converter box for internet with 2.5G link. Behaves better than Realtek in Debian, at least in my case. Haven't had problems with any of those reported 225/226 bugs so far.