- May 24, 2025
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Thanks for this post, Kell. Was concerned about this.One problem is your PCIe port version and lane count. A PCIe version 2.0 port using 1 lane will only allow 500 MBps, which is only 4000 Gbps, which is less than the 5000 Gbps needed to support 2.5Gbps full-duplex (i.e. 2.5Gbps each direction). You are also need a decent CPU to handle the network traffic, the offload engine in windows for that card needs about 3-4x more CPU usage than most of the Intel 2.5Gbps cards (which is why the Intel cards run hotter and many have a heatsink+fan since it is offloading quite a bit more workload, and almost all those cards are PCIe version 3.0 so that they have the full bandwidth needed to support the actual 2.5Gbps speed).
I plan to build a new PC, anyway, and all new MOBOs come with 2.5g+ ethernet ports in mobo so that, naturally, would solve problem.