Yubico YubiKey 5Ci Two factor authentication (2FA) security key for Android/PC/iPhone, dual connectors Lighting/USB C, FIDO certified

Works with 1000+ Accounts: It’s compatible with popular accounts like Google, Microsoft, and Apple. A single YubiKey 5Ci secures 100+ of your favorite accounts, including email, password managers, and more. Fast & Convenient Login: Just plug in your YubiKey 5Ci via USB-C or Lightning and tap it to authenticate. No batteries, no internet connection, and no extra fees required. Most Secure Passkey: Supports FIDO2/WebAuthn, FIDO U2F, Yubico OTP, OATH-TOTP/HOTP, Smart card (PIV), and OpenPGP. That means it’s versatile, working almost anywhere you need it. Yubico Authenticator App: Compatible with the safest authenticator app experience across mobile and desktop. Primary & Spare Keys: Just like having a spare house key, we recommend buying two YubiKeys—one for daily use and one as a spare. That way you’ll never get locked out of your accounts. PROVEN SECURITY (FIRMWARE 5.7): Features YubiKey Firmware 5.7, providing seamless multi-factor authentication (MFA) and phishing-resistant protection across your favorite accounts. Built to Last: Made from tough, waterproof, and crush-resistant materials. Made in Sweden with the highest security standards.