
The key lets you log in to many well-known websites and apps, including Gmail, YouTube, Twitter, Dropbox, Office 365, and Xbox Live. No matter how you connect it to your PC, the Security Key NFC supports the FIDO U2F and FIDO2/WebAuthn authentication standards, which isn't surprising, as Yubico contributes to both. That's still cheaper than Google's Titan USB-C/Security Key, which is $35-if you can find it in stock. The Security C NFC costs five dollars more than the USB-A option ($29 versus $24). Hardware authentication company Yubico is addressing that need with an inexpensive security key that allows logins via USB-C-or with just a tap of the key to a PC or phone.

So security keys that serve as a form of multi-factor authentication or passwordless login need to play well with the port. The European Union even wants to force the use of USB-C. Along with that, it has a notch in the corner, but it’s not a typical location that an ID badge would be attached to a lanyard. It’s the same height and width as an ID badge, however, it’s roughly 4.67x thicker.

Because of its power delivery, high transfer rates, and Thunderbolt capabilities, USB-C has become ubiquitous on modern devices. The ATKey.Card is an interesting bit of technology.
