CH9200 USB Ethernet adapter , manufactured by Qinheng Electronics (WCH)

In today's digital age, having a reliable and fast internet connection is essential for both personal and professional use. However, there are times when our computer's built-in Ethernet port may not be functioning properly or may not be available at all. This is where a USB Ethernet adapter comes into play. One popular option is the CH9200 USB Ethernet adapter, which offers a convenient and easy-to-use solution for adding Ethernet connectivity to your computer via a USB port.

If that fails, search Google for:

You will typically find this chip in unbranded, blue or black plastic dongles from Amazon, eBay, or AliExpress. The product listing might say "USB to RJ45," but the fine print will mention "CH9200."