Review on 🔌 USB 3.0 Gigabit Ethernet Adapter (2-Pack), CableCreation USB to RJ45 Network Adapter for Windows, Mac, macOS, Linux – Black, Supporting 10/100/1000 Mbps by Tom Lawson

Worked great for 2 months. After 2 months I started having intermittent blackouts that lasted 5-10 seconds. The connection between the ISP, modem and router was fine as the connection to my wife's computer which is next to mine does not cause any problems when the problem occurs on my own system. I then ran ipconfig the next time this happened and the default gateway was missing instead of showing my router's IP address. IOW, the connection between my PC and the router kept dropping. It's not the USB port, it's not the Ethernet cable and it's not the router (also tried different ports on the router), so the USB network card is defective due to elimination.