Restored USB 3.0 to USB-C Original SS Adapter from Google Titan Security Key - White OEM (Refurbished) - Walmart.com
Google Titan Security Key K9T (Bundle with Bluetooth/NFC/USB, Micro USB Cable and USB-C-USB-A Adapter) for sale online | eBay
Amazon.com: Thetis Fido U2F Security Key with Type C Adapter Two-Factor Authentication Extra Protection and Compatible with Windows/Linux/Mac OS, Gmail, Facebook, Dropbox, SalesForce, GitHub and More : Electronics
Titan Security Key - FIDO U2F USB-C NFC Bluetooth - Google Store
Google takes on Yubico and builds its own hardware security keys | TechCrunch