Yubico - YubiKey 5C Nano - USB-C - Full Featured, Multi-Protocol - Two Factor, Multi-Factor, and passwordless Security Key - IP68 Water and dust Tight - Designed to Stay in Port

SECURITY KEY: Protect your online accounts against unauthorized access by using 2 factor authentication with the Yubico YubiKey 5C Nano security key. It's the world's most protective USB security key that works with more online services/apps than any other.
FIDO: The YubiKey 5C Nano is FIDO certified and works with Google Chrome and any FIDO-compliant application on Windows, Mac OS or Linux. Secure your login and protect your Gmail, Facebook, Dropbox, Outlook, LastPass accounts, 1Password, and more.
FITS USB-C PORTS: Once registered, each service will request you to insert the YubiKey PC security key into a USB-C port and tap to gain access. The extra compact size is designed to stay in the port so you can stay connected and secure anywhere.
DURABLE AND SECURE: Extremely secure and durable, YubiKeys are tamper resistant, water resistant, and crush resistant. The YubiKey 5C Nano USB is designed to protect your online accounts from phishing and account takeovers. Proudly made in the USA.
MULTI-PROTOCOL SUPPORT: The YubiKey USB authenticator has multi-protocol support including FIDO2, FIDO U2F, Yubico OTP, OATH-TOTP, OATH-HOTP, Smart card (PIV), OpenPGP, and Challenge-Response capability to give you strong hardware-based authentication.