If you are looking for the file, you are likely trying to connect to the USB console port of a Cisco ASR 900 series router (such as the Go to product viewer dialog for this item. Go to product viewer dialog for this item.
The general procedure involves using the built-in terminal to identify the correct device and then using a terminal emulator like screen to connect. asr9xxusbconsoledriverszip
For more detailed community-driven solutions, this Cisco Community Discussion on ASR 920 USB Console Drivers is a highly helpful resource. If you are looking for the file, you