Yubico
[Original Hong Kong licensed product, official authorized dealer]
The Yubico identity authentication device Yubikey from Sweden supports one-time password (OTP), public key encryption and identity authentication, as well as the Universal Second Factor (U2F) protocol developed by the FIDO Alliance (FIDO U2F). It allows users to securely log in to their accounts by submitting a one-time password or using public/private keys generated by the device. [Official website link]