Check the listing for details. YubiKey 5Ci - Two-Factor authentication Security Key for Android/PC/iPhone, D.... Condition: New. Listed at 105.99 USD. YubiKey 5Ci - Two-Factor authentication Security Key for Android/PC/i, Dual connectors for Lighting/USB-C - FIDO Certified Dual connector: YubiKey 5Ci is an innovative multi-protocol hardware authenticator featuring a dual connector for lightning and USB-C ports. With the Lightning connector, you can protect your iOS mobile apps and connect with a simple touch. Compatibility: 5Ci provides the YubiKey 5Ci, on the one hand, with the functionality to support thousands of apps and protect their account credentials. The Lightning connector, on the other hand, is innovation-oriented and is currently compatible with a number of applications. FIDO: YubiKey 5Ci is FIDO-certified and supports Google Chrome and any other FIDO compatible application on Windows, Mac OS or Linux. Protect your login credentials and protect your Gmail, Facebook, Dropbox, Outlook, LastPass, Dashlane accounts and many more. Multi-protocol support: This YubiKey offers multi-protocol support including FIDO (U2F, FIDO2), OTP, OATH-TOTP, OATH-HOTP, Smart Card (PIV), OpenPGP and challenge response capability to ensure strong hardware-based authentication.