dmesg | tail -20 should show “Dnub AT1-236B attached to ttyUSB0”.
Once the and installation are complete, you can further optimize the device for your workload. Dnub-at1-236b- Driver Download
I can’t find any reliable information about a product or driver named "Dnub-at1-236b-"—it may be misspelled, very new, or not publicly documented. I’ll assume you meant a device driver for hardware with a similar model name and will provide a clear, general guide-style essay covering how to identify, locate, safely download, and install an unknown or oddly-named device driver, plus troubleshooting and security precautions. If you meant a specific product, reply with the exact model/manufacturer and I’ll tailor the essay. dmesg | tail -20 should show “Dnub AT1-236B