10Gtek 10Gb PCI-E NIC Network Card, Dual Copper RJ45 Port, with Intel X540 Controller, PCI Express Ethernet LAN Adapter Support Windows Server/Windows/Linux/ESX, Compare to Intel X540-T2

After a nightmare with Mellanox ConnectX 3 and HP NC552SFP+ cards either not working, incompatible or constantly crashing, I installed this Intel X-520 (82599) based card into my Win11 Gigabyte Z390 system. Finding drivers was a slight mission but once installed, this card worked like a champ. Tested with both DAC SFP+ and OM4 multimode fibre (Using a Mellanox SFP+ transceiver) and it ran consistently - no errors, no disconnections and excellent throughput.Tested with single / contiguous 120Gb files as well as folders containing 100Gb of small (3 & 4Mb) files, I got about 3.5 to 4.5Gbps consistent throughput. Was hoping for a bit more but will next be tweaking stuff like flow control, MTU, Jumbo frames etc. Disk IO is a bottleneck, even using EVO990 Pro NVME drives.I tested direct PC to PC connections using a DAC, then via switch (DAC on PC1, fibre on PC2) using the amazing Sodola 6 port 10Gbe managed switch sold here on Amazon for a ludicrously cheap £65 (as at Aug24). It was OK on crossover but really shone with the SFP switch.Highly recommend this card and really impressed with it. To be fair to Mellanox, their dual SFP+ card is excellent but it seems there's a major compatibility issue between Gigabyte boards (especially Z290/390/490 chipsets) and ConnectX cards. The only time it works is in a 16x PCIe slot. It will NOT work in an 8x slot due to lanes limited to 4. No way I'm dumping my RTX4070 so this 10GTek card came as a huge blessing.

Works well had to hunt for a driver but other than that it works well.

Easy to install. Debian pc installed the drivers automatically with no intervention required. Windows 11 found the card but could not automatically install a driver. I found in the end I had to download the full driver package from intel. Once I had done this windows installed the correct driver. No issues connected to a 10gb rj45 switch using cat 6.

Using this as a 10GB NIC on a Windows 11 PC. Once installed, you must download the drivers from 10Gtek's website. Works well and good value for money.

Using this as a 10Gb NIC on a Windows 11 PC. Once physically installed, the device is recognised by Windows. It works out of the box, but only at 1Gb. Download and install the drivers from 10Gtek's website, and it was offering 10Gb after the first reboot. Works well and good value for money.

I've got quite a basic PC but wanted to leverage the 10G capability of my network infrastructure, I had to change my graphics card to free up a PCI slot with enough lanes for this card. After installation (win10) it was recognised straight away, popped in my SFP+ module and I was good to go at 10Gbps! I'm getting transfer speeds of about 5Gbps when running an iperf3 test to my NAS which is great considering my limited hardware.

The media could not be loaded. It was awesome in my Synology DS1817+ NAS until it wasn't!Plug and play dual 10Gbe! The model I received was a fan version, not passive as advertised.I was super happy with this and it's only a fraction of the price of the Synology OEM model. Worked perfectly straight out of the box. Just plug and play with the Intel 540 chip.Sadly, after less than a month the fan is knackered.Have returned and purchased a passive model.10Gb Dual LAN Base-T PCI-e Network Card, Intel X540 Controller, NICGIGA 10Gbps Ethernet Adapter, 2 * 10Gbe RJ45 Port ， 10G NIC Card, Support Windows/Windows Server/Linux/Vmware/ESX

works well no drivers required for me even worked for virtual box VM as bridged adaptor with no added drivers so good priced item