The Microsoft Update Catalog is the official repository for Windows drivers and updates. It contains a WHQL‑certified driver for the CH9200 chipset, published by Nanjing Qinheng Microelectronics.
You already own a CH9200 adapter, only need basic 100Mbps connectivity, and are comfortable manually installing drivers.
http://www.wch.cn/downloads/CH9200DRV_EXE.html ch9200 usb ethernet adapter driver for windows 11 link
Summary
: Double-click setup.exe or install.exe and follow the on-screen instructions. Restart your PC The Microsoft Update Catalog is the official repository
Note: Always prefer downloading from the manufacturer's website (WCH) to ensure driver authenticity. 3. How to Install the CH9200 Driver on Windows 11 Follow these steps to ensure the CH9200 adapter Go to product viewer dialog for this item. is correctly installed: Method A: Automated Installation (Recommended) Download the .exe driver installer from the WCH website. Run the installer file ( Setup.exe ). Follow the on-screen instructions. after the installation is complete.
WCH CH9200 Driver Download (EXE) File Type: Windows Executable (.exe) http://www
: Drivers for the WCH CH9200 are available for both 32-bit and 64-bit Windows 11.
In the setup window, click the Install button. Check Device Manager: Right-click the Start button and select Device Manager . Look under Network adapters . The device should appear as "CH9200 USB Ethernet Adapter".
Windows 11 blocks unsigned drivers by default. To bypass:
CH9200 USB Ethernet Adapter. USB\VID_1A86&PID_E092&REV_0100. USB\VID_1A86&PID_E092. USB\COMPAT_VID_1A86&CLASS_00&SUBCLASS_00&PROT_ Treexyhttps://treexy.com Qinheng Electronics (WCH) CH9200 USB Ethernet Adapter