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Question
You need another way to authenticate with Duo, but do not have access to a compatible device or you want to have a backup method of authentication
Answer
A Duo Hardware Token is a small key fob with a button on it which generates a passcode that you can use to authenticate your account.
Duo hardware tokens can be purchased from the SDSU bookstore here
Purchase Duo Hardware Token Here
Using Duo with a Hardware Token
Video: Authenticate with Hardware Tokens - Duo Security
If your Duo Hardware token does not work after you receive it, please call the support desk to ensure it is linked to your account.