Is this
Yubico - Security Key NFC - Two-Factor Authentication Security Key, Connect via USB-A or NFC, FIDO U2F/FIDO2 Certified - Black good on multiple sites/accounts or just one? null

Question

Is this 
Yubico - Security Key NFC - Two-Factor Authentication Security Key, Connect via USB-A or NFC, FIDO U2F/FIDO2 Certified - Black good on multiple sites/accounts or just one? null

Yubico Official Support · Accepted Answer

Hi Fred! Gabe here with Yubico support!

Each security protocol that the YubiKey supports has a different account limit. The limits for what our Security Key Series supports is as follows:

FIDO U2F - can be registered with an unlimited number of services.

FIDO2 - (Firmware 5.7+) can hold up to 100 resident keys in its FIDO2 application (unlimited non-discoverable). Firmware 5.0 - 5.6 up to 25 discoverable credentials (unlimited non-discoverable)

“Is this Yubico - Security Key NFC - Two-Factor Authentication Security Key, Connect via USB-A or NFC, FIDO U2F/FIDO2 Certified - Black good on multiple sites/accounts or just one?”

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