<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000'><div><br></div>We had the motherboard network port die on a pfSense firewall a while back (the other two ports were on a PCI-E card). We stuck a Cisco USB300-M network dongle on it and it worked just fine. I'm sure there was a performance hit, but it was the WAN side and our Internet connection is well under 100mbps anyway so we didn't notice the difference. We've replaced the hardware since then, and I wouldn't spec a firewall using a USB NIC, it served us well for a few months. <div><br></div><div>Scott<br><br></div></div></body></html>