BrosTrend 2.5Gb Network Card, PCIe Network Adapter RJ45 NIC with Extra Low-profile Bracket PCI Express Gigabit Ethernet Card for Windows 11/10/8.1/8/7/XP, Windows Server... Limited Lifetime Protection

I upgraded my network to 2.5 GB so I needed these cards for my older computers which only supported Gigabit speed.The install was easy and I did not need to install any drivers in Windows nor in Ubuntu. They just worked!The speed tests show they run at full speed and work as advertised. This was a great purchase. And now all my wired devices on my network are connected at 2.5 GB.

You need to have a PCI slot available on your motherboard for this to be any use to you. Double check before you order one. Too many people buy a product that isn't compatible with their setup and then give it a low review. Instead the issue is with the reviewer. I purchased two of these. One is on a Windows 11 computer, another is on a Linux machine. Both were detected and connected perfectly. I only have 2 GB internet officially, but I got 2.3 through both of these adapters so I'm fairly certain if you have 2.5 GB internet, you won't be disappointed. Super easy to install (depending on your particular machine, of course). The weight of each adapter suggests high quality over the long term.

Used to upgrade my unRaid servers LAN from 1Gb, and was essentially plug and play, no need for any driver installation.Speeds were as advertised.

Works well.

Does what it claims.Transfers at 1.7~2.3gbps full duplex.Gets a little hot on long transfers, make sure that a fans blowing on it or it will throttle or even drop out. Price is perfect for the performance

Working great for my new GB connection. Fit into my limited available PC tower space like a glove. Installed without any complaints in Windows 11.

For the price these appear to be good Realtek chipset base 2.5 gig Network cards. I ordered three of them as we're getting faster Internet at our house and the existing 1 gig Network was too slow. I installed 2 cards in Windows 10 desktops and one in a home lab server. One of the Windows 10 desktops immediately had connection problems. If too much network activity was going on, it'd disconnect then reconnect. This would happen over and over. Gaming with the card was not possible. Switched the Ethernet cable to the built in 1gb port on my motherboard and problem went away. Other 2.5 gb cards on the Network did not experience this problem.I'm returning all three of the cards. If one is already failed I don't have a lot of confidence in the lifespan of the other two.

Worked fine in my pc. Plug and play for windows 11 and boosted speeds on home network over my previous built-in gigabit Ethernet.