Cisco officially supports Windows only for version 3.1. However, macOS and Linux use built-in kernel drivers that behave identically to the 3.1 specification.
| Feature | Description | |---------|-------------| | | Full compatibility with Windows 11 22H2+ and Windows Server 2022. | | Driver Signing | Digitally signed by Cisco Systems, Inc. – eliminates unsigned driver warnings on modern Windows (Secure Boot compatible). | | Automatic COM Port Assignment | Dynamically assigns a virtual COM port (e.g., COM3, COM4) when the USB cable is connected. | | Improved Plug-and-Play | Faster device detection and driver loading. | | Stability Fixes | Resolves random disconnections and buffer overrun errors present in earlier driver versions (e.g., 3.0, 2.x). | | Multiple Device Support | Connect multiple Cisco devices via USB to different COM ports simultaneously. | cisco usb console driver 3.1
If you are on a modern 64-bit machine, Driver 3.1 may fail to install or function correctly due to driver signing enforcement. Cisco officially supports Windows only for version 3