The Nitrokey HSM 2 supports two different n-of-m schemes - one for secure sharing of key material/passwords and one for public key authentication to control the access to the device. Please see this blog post for more detailed information.
N-of-m for public key authentication#
N-of-m authentication is also supported in the PKI-as-a-Service Portal for locally and remote connected HSMs. The PKI-as-a-Service Portal is based on OpenSCDP.