Token2
Token2, founded in Geneva, Switzerland, ships a deep catalog of FIDO2 keys at lower prices than Yubico. Their PIN+ family enforces PIN complexity rules on the device itself rather than relying on the relying party. Higher tier keys add PIV smart card and OpenPGP, putting them in roughly the same protocol territory as the Yubikey 5 at a fraction of the cost. Token2 ships frequent firmware updates and publishes a feature support matrix that tracks what each release adds.
This key is no longer recommended for use.