Google’s current USB-A security key already includes NFC and sells for $25. The USB-A plus NFC key that Google lists in its blog post will sell for $30, but it comes with a USB-C adapter.

The new USB-A key will cost $30 ($5 more than the old one), while the USB-C variant will cost $35, and are both on sale now. Experts recommend 2FA Titan keys serve as two-factor authentication ...

The USB to serial adapter has a USB-A port on one end and a serial port on the other. The serial port is most commonly RS232, which is a standard that dates back to the 1960s.

Last August, Google released its first two Titan security keys, which you could use as physical keys for two-factor authentication for some online services over USB-A, NFC, or Bluetooth. Now ...

Starting August 10, Google will only offer the USB-A and a USB-C NFC version of Titan Security Keys, with the USB-A (which also comes with USB-A to USB-C adapter) to sell for $30 and the USB-C+NFC ...

Google is a big proponent for 2-Step Verification, and is today improving the experience on iPhones. You can now sign-in to a Google Account on iOS using USB/NFC security keys. Google’s login ...

That still costs $30 and includes a USB-A to USB-C adapter. Meanwhile, the new USB-C + NFC offering comes in at $35. It’s unclear whether Google will keep selling the USB-C only model made by ...

That should work better for people with newer devices, as USB-C is now common on recent Macs, most PCs and Android smartphones. The YubiKey 5C NFC is now available for $55 on Yubico’s website .