If you are holding a USB console cable with the label AWM 20251 (often associated with brands like Cisco, TrendNet, or generic "Cisco Compatible" cables) and your computer isn't recognizing it, you likely need the correct driver.
This is a very common issue with network engineering gear. Below is the direct solution to get your cable working. Awm 20251 Console Cable Driver Download
Unlike a standard USB keyboard or mouse, the AWM 20251 cable contains a small microcontroller (a USB-to-serial bridge chip). Windows, macOS, and some Linux distros do not include native drivers for all chips. Without the correct driver, the operating system sees an "unknown device" or fails to assign a COM port. Guide: AWM 20251 Console Cable Driver Download &
Do not download from random “driver download” websites—they are riddled with malware. Below are the official, safe sources. Official AWM 20251 Console Cable Driver Download Sources