4 Ports 2.5G PCIe Network Card, RTL8125B LAN Controller, 2500/1000/100Mbps RJ45 Ethernet NIC Adapter, Support PXE for Windows/Linux

Plug and play, very stable, cheap and works pretty well over stress, never had a single problem! MAKE SURE YOU INSTALL THE DRIVER!!!

Works great, noticed an increased snappiness to the computer.

If you're looking at this item and wondering if it will work with your QNAP NAS (TVS-hx74 specifically), it does. Trouble-free install from the get-go, worked immediately and has been great for over a year. The first thing I did before install, since this is installed upside down (with the heatsink facing down and not up), was to remove the heatsink and corresponding thermal pad and replace with a small bead of Arctic Silver 5, then reinstall the heatsink. My only complaint now is that this card is $20 cheaper than when I purchased 😢.

I tested this in 3 different machines. One of my ASUS motherboards had an issue that when you initially started the machine, the PCI-E was not active. This is NOT the fault of the card but the fault of the motherboard. For me to get the machine to boot fresh with the card active I was required to disable the onboard ethernet adapter. If you intend to use the onboard adapter and this adapter doublecheck reviews of your manufacturers motherboard before blaming the manufacturer of this board. To ensure you have setup the card properly. When you first install this, windows will install a default driver. I would double check the card works as expected by doing speed tests if you have internet speeds at 2.5Gbps. If you do not have those speeds you can setup iperf3 server and client and run a speed test between 2 computers. A poor mans version of this is to copy a large file from computer A to computer B. But if you do the copy file trick, you must ensure you hard drive speeds are at or above the 2.5G speeds. Some SSDs cap out at 100Mbs. Drives rated at 6G or 600Mbs likely will never run at those speeds. So keep that in mind when doing speed tests with data. If you noticed you are not getting expected speeds for the adapter. I would recommend downloading the realtek drivers from realtek. Once installed, you can change the adapter settings in the Device Manager to used 2.5G instead of the default often set to 1.0G. You may also want to turn on Jumbo frames. But in doing so check your router's capabilities for jumbo frames. Some routers will limit or restrict jumbo frames so keep that in mind. If turning on Jumbo frames and you speeds decrease you likely are having issues with your router. Some manufacturers, especially those with all 2.5G ports usually turn this feature on by default. Overall, after testing in 3 different machines. I plan to use this in my gaming PC. I can finally upgrade my internet speeds and take advantage of it for both my server and my gaming PC. A worthy upgrade in my mind since my day job includes having fast and reliable internet connection.

Great for a lil diy router, really good quality and couldn't be easier to install. It's always nice to have extra hardware included, and I need it for a my low profile computer build, and no extra cost is always good!

This lan card works as advertised, however you will need to update your drivers as the generic drivers only connect at 2.5gb. Once your drivers are updated from the Realtek site, you will experience 5gb speeds. Happy with the price, performance and ease of use.

The card works at the 10Gbps, 2.5Gbps and 1Gbps speeds. But it died at the 28-day mark--would not power on. I revised my rating from 5 to 1. On Windows 11, the drivers weren't automatically installed. Drivers come on a CD-ROM but you can download the drivers from the Binardat website. Go to the Site Map at the bottom of the main page and select Downloads to find the drivers. Select the AQUANTIA driver. I installed drivers from the CD-ROM and the card identifies itself as a 'Marvell AQtion 10Gbit Network Adapter'. Today, there's one on Amazon for $10 less.

Great little 2.5gig adapter

Getest op een Windows 11 machine die alleen een 1gbit aansluiting had. Deze netwerkkaart haalt netjes ongv de top van 2,5GBIT up en down. Bouwkwaliteit is goed.

I recently upgraded the network in my house. Most of it is your standard 1Gbps network, however in my home office I have a 10G switch that I have connected my servers to at 10G, I have a NAS with 2.5G connections that also connects to that switch. I should mention the switch does support multiple speeds, 1, 2.5, 5 and 10Gbps. The only devices left in the office without a fast connection was a desktop computer, hence this card. Installation of this card is pretty simple, you stick it into a free PCIe X4 slot and screw it down. Depending on your case you may have to swap out the mounting bracket so that it fits, but in my case, I did not need to do this. After installation, I turned on my computer and because it is a Linux box, the card was identified, and just worked without any extra configuration. As for speed, it is a big improvement over 1G. Unfortunately I did not capture any metrics, but it does transfer files to and from my server faster than before. At the risk of sounding condescending, I want to warn people that they will not get faster speeds from this card if their network has not been upgraded from 1Gbps and/or has no other device with fast networking.

produto de qualidade mas naõ veio nota e demorou muito pra chegar e agora a alfandega esta dizemdo que naõ chegou e esta dando apição de fazer nova compra ou dessembaraçar na alfandega e receber mas eu ja recebi é golpe

このLANカード使用してまだ二日ですが 以前ソフトはインストール済みでしたので、 すぐ使用できました、4.8くらいの速度がでてます。速度は問題なく、金額も安いと思います。 以前購入した、外付けは耐久性に問題あり 一週間程で壊れてしまいましたので、 今回は耐久性に期待です

Die 5Gb Netzwerkkarte lässt sich dank des Realtek Chipsets problemlos installieren - einfach einbauen, Rechner einschalten, warten bis die Treiber installiert werden, fertig. Zumindest unter Windows 11, denn ich benutze nur dieses Betriebssystem. Unter Linux dürfte es aber auch funktionieren, da der Chipset auch dort unterstützt wird. Für Rechner ohne oder mit defekter eingebauter Netzwerkkarte oder um ein zweites Netzwerk aufzubauen ist die Karte super.