2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile

Not sure why people dump on RLT chipsets I have 2x of these and I have zero issues, in from my fiber terminal 2G symmetrical, out to a 24port 2.5G switch out to various devices with mix of 1.5 and 2.5G onboard nics and Wifi 7 APs throughout the house. My opnsense box is an i5 optiplex 9010.