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I have never used Nitrokey to tell the difference.

I have and it definitely seems to have more features, depending on the version you get, e.g. storing certificates, GUI interface, open source hardware, storing several passwords, using it as a smart card, etc.

Sounds great, can you provide the link for the official website? So that I can check that out.

Thanks. Germany has some serious privacy concerns, so this must be secure.