RTL8125-2.5G-1T-X1

Used these as an extra NIC on my proxmox cluster that is comprised of Lenovo mini PC's, they work great at the speeds they are rated for. Fit inside of a vga sized cutout that was unpopulated, so they were plug and play, no case mods needed.

I used this in a SFF build that only had a small wireless card port. I'm getting nearly full 2.5 gigabit speeds with this little guy. Works great!

Very niche product that works for my very specific use case. I wanted to upgrade my Lenovo M700 Tiny with some higher speed networking as it has a DAS attached storage and Unraid on it. I was able to install it in the wireless card class that was close to the power button. The very tight fit, but was able to fold the cable under the card and route it to the back. I was able to pull the PCI brackets off the Ethernet port and use the screws and holes to attach it to an unused serial slot punch out. I used a piece of electrical tape to cover the bottom of the Ethernet port PCB to keep from shorts. It looks factory! Unraid 7.1.4 picked it up without any issue and able to see 2500 Mbps connection. (Router confirms as well) Initial speed tests seem to confirm it. Hopeful that the RTL8125 will be reliable as the Intel I219-V has been. Three complaints. First is on Amazon, the packed was crushed. Luckily it was packed in a strong plastic case. Second, the cable is very short. Even in my tiny client PC, it took some creative routing. I would appreciate a bit more length on the cable. Third, please include a screw for the M.2 please. I can understand a commodity SSD not including a screw, but this is a bit more niche. Even a cheap screw driver was included. Overall, a great way to add higher speed networking to a mini PC. Unraid worked out of the box.

Perfect upgrade for my mini pc! Slotted into the unpopulated WiFi slot on my motherboard and just worked!

I had high hopes for this card especially after reading the reviews. It turned out to be very disappointing. I purchased it for my OPNsense firewall and it was ok to get the drivers installed and was easily recognized. However, I don’t even know what it does, but the firewall’s console throws some errors regarding this NIC and after ~5 the console floods with output text that you can’t see because it flashes so fast and the computer reboots. This happens constantly. Stay away from Realtek products, intel NICs are expensive for a good reason. Another issue (not a big deal) but the standard profile bracket is a bit tall for my giant tower.

So far, so good. I installed this in the WiFi slot of my Dell Optiplex MFF running Ubuntu. Fired up just fine and is showing a 2.5 GbE connection. No need to add any drivers, presumably because the on-board NIC is Realtek.

Works as advertised:) and comes with drivers

El cable es muy grueso, lo cual hace dificil instalar y figurarlo a traves del gabienete, tiene una disposicion poco conveniente y ademas es muy corto. Respecto al funcionamiento no estoy seguro no lo pude probar, pq no lo pude instalar.

Works well once wired correctly. Comes with no connection details, just pictures on the product page. Pay close attention to colour positions. It took me 3 goes to get it correct.