A hardware token (security or authentication token) is a small physical device that you use to authorize your access to a specific network. They can come in many forms, most commonly as USB tokens, key fobs, and wireless Bluetooth tokens.
What is the difference between a soft token and hard token in two-factor authentication (TFA)? - Quora
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What is the difference between a soft token and hard token in two-factor authentication (TFA)? - Quora
Security Tokens
TOTP Tokens Protectimus Slim NFC: FAQ - Protectimus Solutions
HID hard token support
What is the difference between a soft token and hard token in two-factor authentication (TFA)? - Quora
Hard Tokens vs. Soft Tokens
What is a Halberd Token? – GateKeeper