Multi-Interface FIDO Security Keys Multi-Factor Authentication via NFC, Bluetooth and USB
Our multi-interface FIDO security keys are specifically designed to streamline multi-factor authentication across devices including smartphones, tablets, laptops, notebooks and desktops. One security key for all scenarios.
Perfect for Mobile
Our dual-interface FIDO Security Keys have NFC and USB connectivity while our multi-interface FIDO keys feature NFC, USB and Bluetooth BLE.
2FA/MFA is a breeze, even across different devices, with one security key that works with mobile (Android and iOS) as well as desktops, laptops and notebooks.

Ultimate Compatibility
Multi-factor authentication becomes possible across the widest array of devices using our FIDO security keys.
FIDO keys are driverless on Windows, macOS and Linux when used via USB.
Our Bluetooth FIDO keys are compatible with Android and iOS with Bluetooth v4.0+ connectivity.
NFC FIDO Security Keys provide quick and easy wireless authentication for users with Android devices.
Feitian FIDO Security Keys
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|
K9 |
K40 |
MultiPass (K13) |
|
Connectivity | USB-A NFC |
USB-C NFC |
USB NFC Bluetooth Low Energy (BLE) |
FIDO Certifications | FIDO2 FIDO U2F |
FIDO2 FIDO U2F |
FIDO2 FIDO U2F |
Size | 44 x 21 x 3 mm | 51 x 19 x 7 mm | 47 x 29 x 8 mm |
Operating Systems | Windows, Linux, macOS, Chrome OS | Windows, Linux, macOS, Chrome OS | Windows, Linux, macOS, iOS, Android, Chrome OS |
Working Voltage | 5.0V | 5.0V | 5.0V (3.7V on battery) |
Working Current | 22mA | 22mA | 65mA |
Power | 0.11W | 0.11W | 0.325W |
Battery Capacity | N/A | N/A | 35 mAh (rechargeable) |
Working Temperature | -10 °C ~ 50 °C | -10 °C ~ 50 °C | -10 °C ~ 50 °C |
Storage Temperature | -20 °C ~ 70 °C | -20 °C ~ 70 °C | -20 °C ~ 70 °C |