The is a classic tale of cheap hardware meeting modern security. It is not impossible to install, but it requires deliberate steps—downloading legacy WCH drivers, bypassing signature enforcement, and accepting 100 Mbps speeds.
If you have purchased a no-name USB-to-Ethernet adapter on Amazon or eBay and the box says "CH9200," this guide is for you. We will cover installation, troubleshooting, and why this specific chipset is problematic under Microsoft's latest OS. Ch9200 Usb Ethernet Adapter Driver Windows 11
If you need speed, return the CH9200 adapter and buy an RTL8153 or AX88179 based adapter. They support Gigabit (1000 Mbps) and have native Windows 11 drivers. The is a classic tale of cheap hardware
The CH9200 is a chip. It cannot achieve Gigabit speeds. If you see slower speeds (e.g., 30-50 Mbps), check your USB port—use a USB 2.0 or USB 3.0 port for best results. Also, try a different Ethernet cable. We will cover installation, troubleshooting, and why this