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Name: RTL8156 2.5GBASE-T Ethernet Adapter
Not sure if "2.5 Gigabit Ethernet Adapter" would be a better name
Windows names it a "Realtek USB 2.5GbE Family Controller"
Chip is inside a Delock 2.5Gigabit LAN Adapter (66299), Chip name according to manual, I did not break open the plastic case
iProduct 2 USB 10/100/1G/2.5G LAN