Token2 T2F2-NFC FIDO2, U2F and TOTP Security Key


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T2F2-NFC is an NFC enabled version of our T2F2ALU security key. Having an NFC chip onboard allows using this FIDO2 key with modern iPhones natively, directly in the browser (starting from iOS 13.3) as well as Android devices with NFC.

FIDO  security keys are small USB dongles that enable secure login to websites and applications supporting FIDO2 WebAuthn and classic FIDO (U2F) standards. 

Token2 T2F2-NFC  security key combines hardware-based authentication, public-key cryptography, TOTP/HOTP, U2F, and FIDO2 protocols to protect your accounts. This type of security devices provides the highest level of multifactor authentication of user accounts with Twitter, Facebook, Gmail, GitHub, Dropbox, Dashlane, Salesforce, Duo, Centrify and hundreds more HOTP, U2F, and FIDO2 compatible services. No additional tools or applications are required, and the login process is simple and reliable. Just insert the Security Key into a USB-A slot and authenticate with a simple touch. We also sell a compact USB-A to Type-C adapter, so you can use the same key with devices with USB-Type-C slots. The T2F2-NFC security key does not require a battery nor network connectivity - it is always on and accessible.

Token2 T2F2-NFC key is certified by the FIDO® Alliance

Model Number Token2 T2F2-NFC
Button Physical push-button
Functions FIDO U2F + FIDO2.1 WebAuthn + HOTP (HID) + TOTP (with Companion app)
Embedded security algorithm ECDSA , SHA256, AES, HMAC, ECDH
Interface type NFC, USB-A + USB Type-C (with optional adapter)
Firmware FIDO 2.1 Token2
Maximum FIDO2.1 Resident keys 50
Lifetime At least 10 years
Programming cycles 100,000 times
Communication protocol CTAP2, HID, NFC
Working voltage 5.0V DC
Input Currency 35mA
Power  0.18W
Working temperature -10℃ - 50℃
Storage temperature -20℃ - 70℃

An aluminum cover protects the USB connector when not in use. 

TOTP Feature
T2F2-NFC Security key can securely store the secrets for your TOTP profiles, but requires a companion app (available for Android and Windows) to generate the OTPs. 

Token2 Companion app - Windows version

iOS Support

Native support of NFC FIDO2 Keys in iPhone Safari

Integration guides

Using Your T2F2 Security Key with Google

Passwordless authentication in Azure AD with Token2 FIDO2 keys

FIDO U2F security key for Stripe

Using FIDO2 USB keys under Linux

Metallic cases of T2F2-NFC can potentially interfere with the NFC signal of the device, causing it to be blocked. This happens because metal acts as a barrier to the transmission of electromagnetic waves, including the NFC signal.  To avoid this issue, it is important to unfold the metal casing before using NFC. If you plan to use this key primarily via NFC, we recommend choosing the plastic only model instead.

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