Add another layer of protection to your accounts with the YubiKey 4 USB Authentication Key. The YubiKey 4 makes it easy to set up multi-factor authentication, preventing unauthorized access. Simply slide the authentication key into the USB-A slot on your device and touch the gold contact for verification. Additionally, authenticating using the YubiKey is four times quicker than typing an OTP, or One Time Password. It also doesn’t require any network connectivity or battery, ensuring that it’s always on and accessible. In addition, the YubiKey is also waterproof and crush-resistant to withstand anything life throws your way. It works on Mac OS X, Microsoft Windows, Linux, and Chrome OS, along with most browsers. The YubiKey offers multiprotocol support on a single authentication key, providing peace of mind and reducing IT operational costs.