FIDO2 U2F Security Key - USB 2-Step Authentication TokenEnhance your online account security with the FIDO2 U2F Security Key from Key ID, a compact USB token providing strong two factor authentication without the need for SMS or phone calls. Compatible with Windows, MacOS, Linux, and Chromebook, it works out of the box with Chrome, Opera, and other FIDO compliant browsers for seamless login experiences. Key Features: Physical second factor authentication to secure user logins Eliminates the need for SMS