Look at the small transparent plastic window on the USB connector – you may see “PL2303,” “CP2102,” or “FT232.” Or plug it in and check Device Manager → Universal Serial Bus controllers for an unknown device’s hardware IDs (right-click → Properties → Details → Hardware Ids). Search the VID/PID (e.g., VID_067B&PID_2303 = Prolific).
To download the Cisco USB Console Driver for Windows 11, follow the steps below. Cisco does not offer a single "universal" driver—the correct driver depends on your specific console cable’s internal chipset.
Cisco’s legacy driver page (requires login): https://software.cisco.com/download/home/286285137/type/282046149/release/3.1 Search for “USB console driver” – but note that Cisco’s own package is essentially the Prolific driver repackaged and often outdated for Windows 11.
If you have a generic Cisco-style USB console cable bought online → Silicon Labs CP210x driver works most reliably on Windows 11.