In case you were interested in this "tinySniffer" device being sold on @tindie because you can SSH to it and copy USB pcap files, its capture functionality requires an internet connection because it calls out to a server in China for authorization every time a session is run, and then uploads the pcap files to their website for (seemingly legitimate) remote access.
https://www.usb7.net/products/tinySniffer
I contacted the maker to ask about this requirement and was told it was for anti-piracy reasons 🙄 I asked for a refund because this requirement wasn't stated up front and the maker offered for me to keep the device with a partial refund.