https://wccftech.com/googles-2fa-titan-security-keys-available-starting-today-at-the-google-store/

In the light of several recent leaks, multi-factor authentication is essential to secure your data. Hardware-based keys are by far the most effective method and are gaining traction among several enterprises. Starting today, those invested heavily into Google’s ecosystem can pick up their Titan Security Keys over on the Google Store. The keys, in part, can be attributed to Google’s squeaky clean record when it comes to security breaches.

The new $50 Titan Security Keyset is a set of two keys: one with NFC and Bluetooth LE for wireless use, and a USB-A/NFC backup. The wireless unit has 6-month battery life at ~3 “touches” per month, and Google says that most people won’t need to charge it (via micro USB) more than once or twice a year. The keys use the U2F standard (not FIDO2) and will work with pretty much every Google service in Chrome, Android, and Chrome OS as well as other services and apps like Dropbox, Facebook, GitHub, Salesforce, Twitter, and anywhere that FIDO security keys are supported.