C301-i is the perfect companion for a user without a mobile device or a user looking to have a fallback authentication token in case of lost of his primary device. Any OATH TOTP can be configured on the device which includes most popular personal and enterprise authentication services like Microsoft 365, Microsoft Entra (previously Azure), Google including Workspace Suite, Okta, Auth0, Facebook, Proton and all those that your are storing into your preferred mobile app like Google Authenticator or Microsoft Authenticator. This device will allow you to apply the airgap security principle since it cannot be compromised or hacked, which is a possible surface of attack for any AUTH TOTP applications you may use on your mobile device or your desktop. C301-I is a NFC programmable hardware token in a classic keyfob/dongle format than can be programmed using our burner apps available for Android, iPhone, macOS※, Linux※ or Windows※ ※ - require additional NFC Writer hardware, different for each platform