TRENDnet 2.5GBase-T PCIe Network Adapter, TEG-25GECTX, Converts a PCIe 2.0 or Later Slot into a 2.5G Ethernet Port, 802.1Q VLAN Tagging, Standard & Low-Profile Brackets Included, Windows Support

Working well and stable on a Windows 10 machine, connecting at 10gbit without any issues. SFP+ transceiver is Ubiquiti 10G going to Ubiquiti Enterprise 8 PoE switch SFP+ port, same transceiver. Simple plug and play with Windows, but user reviews here are accurate, download the Marvell AQN-100 drivers and there is a firmware, which can be accomplished in Windows. Once driver is installed it will be ID'ed as "Marvell AQtion Felicity Network Adapter" ... everything working seamlessly, much easier managing files on the home environment with the speed boost from 1g to 10g. Its an extremely compact card (and heatsink) compared to the Mellanox ConnectX3 which was having stability issues installed in the same box.Tip...Download the drivers and firmware update first before installing, Windows didn't know what it is for me* iPerf3 results showing ~7-9gbit consistently to my 10Gbit enabled Synology NAS** Received hardware v3.0R

I recently upgraded the network at my home. I ended up wiring all rooms to Cat8, and installed a Wifi 7 Mesh based on 2 Eero 7 Max routers. I know what people say: it's too fast, I'll never need it, etc. However, if I'm spending days in the attic pulling and fishing network cables all over the house, I'm going to install the latest standard wiring. This way, I don't have to worry about it again, probably for decades.This card was the second to last item that needed upgrading my entire network: my PC connection. The existing port maxed at 1GB.This card was the 4th card I purchased from Amazon, by the way. And it was the best outcome.1st try was a much cheaper alternative. It supported 10/2.5/1gb speeds on paper. However, it started having temperature issues. The card would get so hot, it would start dropping the connection. I was worried about fire hazards as well.2nd try was a more expensive alternative (the entire card was covered with a nice shiny red heatsink!). However, it only supported 10/1gb. Max 7 has 2.5gb ports as well. Why settle for slower?3rd try was a generic card running on Intel chipset. It was advertised as 10/2.5/1, however, in reality, it was only 1000/100mb. The speed tests were obvious.My suggestion: go with this card. Excellent component overall. Here's a little review:1. Good temperature distribution, heatsink is pretty large, and effective.2. The drivers are available on the manufacturer's website. You don't need to keep searching into the depths of internet, like some intel models.3. This card utilizes PCI Express 3.0. If you look at the market, overwhelming majority of cards are designed for 2.0 architecture. Being able to utilize 3.0 is an advantage.4. Jumbo frames: I'm not big on this topic. If you are using NAS or Outbound VPN, I can see the advantage. My current router does not support it anyhow, but I checked the options, you can change the driver settings and utilize 16kb frames if that's what you'd like.5. Price range.. Excellent hardware for this price point.6. High and low profile brackets for different cases (not very useful, but thoughtful)Overall... The card works. I can get 1gb/2.5gb/10gb. The speed test result is attached for 2.5gb. I'll update the post once I receive the 10gb switch.PS: Little known issue with 10gb ports on routers and switches... Most hardware today, come with 2 ports that can support 10gb. Sounds great, right? However, the practice is a little bit different. Port 1, is used for input (from your modem) (in my case, my ISP, who can provide 8gb fiber input, so it's a must). Port 2, is used to connect your 2nd router for mesh purposes (this way, you have a 10gb backhaul, assuming you have the necessary wiring). Guess what? No port left for the PC or any other hardware.Therefore, until I buy a 10gb switch, and route the mesh through the switch, I won't be able to test 10gb on the PC. Seeing how this card handled 2.5gb, I have no reservations, I'm sure the card will outperform as I came to expect.

Great inexpensive cards. I'd like to echo what another review said and download the latest windows drivers from the Realtek website, do not use the drivers loaded by windows 10 nor the drivers on the Trendnet website. This resolved 1 of 2 of my windows issues. The second issue, though not related to this card, but maybe it will help others, is that I had to remove software was called cFosSpeed that was automatically installed by MSi. Once I did both of these things I hit my Gb speed up and down on my fiber connection. Lastly, I have these cards in 3 separate operating systems including Win10, Ubuntu, and Unraid. Ubuntu and Unraid accepted them without issue and correctly installed the right drivers, the little fiddling required with Win10 resolved those issues. I'll buy these again if needed!

What can I say, it works as intended. I've got 2 of these: one is in an Ubuntu 22.04 server (an old 4770 i7 machine) and the second and Arch Desktop (a ryzen 3900x). Both recognized the cards immediately and set their speeds appropriately with auto-negotiate enabled. Both machines are connected through a 10g copper port switch connected to an OPNsense router (1520 XeonD) with a 10g port.People trying to speed test these with file transfers are going about it the wrong way ad will never see the total throughput because of drive read/write speeds and protocol limitations of the chosen share method (i.e. SMB).The easiest and truest method to test is to run iperf3 as a server on a machine with a 10g interface, on the second machine run an iperf3 test as a client to your machine. BUT that will not really give you the actual result you want, as standard iperf3 tests are run as a single process and will probably cap out around 2-4 gigs. You need to run the client with the -P option to enable more processes, I typically use 10.Example:on the server end:iperf3 -son the client end:iperf3 -c (ip of the server) -P 10iperf3 -c (ip of the server) -P 10 -RThat gives me the output that I would expect to see, typically in the 8.4 - 9.4 gig range. Also be sure to run it in reverse as well with the -R option the second time.The cards work exactly as intended for 10g, though admittedly I have not tried 2.5g or just standard 1g because I haven't the need to. And 5 gig is incredibly uncommon to find so I won't bother with it.I've attached 3 screenshots to show you the results of the 3 iperf3 tests I mentioned. The first pic is if you run iperf3 -c (ip of server) and caps out at 3.73gsecond is iperf3 -c (ip of server) -P 10 and caps at 9.34gthird is iperf3 -c (ip of server) -P 10 -R and caps at 9.37gBTW I should note that I'm not actually using Cat6a for any of these machines. I'm actually using standard cat5e, but the lengths are less than 10 feet. If I had to go longer or started to notice issues, I'd up it to cat6a but it's not always necessary. Just an FYI