Hello,
The Plugable USBC-E2500 USB Ethernet adapter seems to feature a RTL8156B chip. When connected, if_cdce is loaded by default. Unfortunately, I am unable to see the link speed which was negotiated:
root@hayek:~ # ifconfig -m ue0
ue0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST>...
