Amazon.com: Cable Matters Plug & Play USB to Ethernet Adapter with PXE, MAC Address Clone Support (Ethernet to USB 2.0 Adapter, Ethernet Adapter for Laptop) Supporting 10/100 Mbps Ethernet Network in Black :
Ethernet Link Speed Capped at 100 Mbps
networking - How to fix Ethernet speed being stuck at 10 Mbit in Win10? - Super User