Safety & Warranty Guide for Google Titan Security KeysSafety & Warranty Guide for Google Titan Security Keys (Current Version) Safety & Warranty Guide for Google Titan Security Key (K51T) Safety & Warranty Guide for Google Titan Security Key (K52T) Safety & Warranty Guide for Google Titan Security Keys (Prior Version) Safety & Warranty Guide for Google Titan Security Key (K9T) Safety & Warranty Guide for Google Titan Security Key (K40T) Safety and Warranty Guide for Google Titan Security Key (YT1) Safety & Warranty Guide for Google Titan Security Key (K9T, K13T)