Currently the supported opened ports are 8440, 8441, 8442 but it is better to use 8440, as other ports may be deprecated in the future releases.
Section 5.1, Card Plug-in
Section 5.2, FIDO U2F Plug-in
Section 5.3, Fingerprint Plug-in
Section 5.4, PKI Plug-in
Section 5.5, Bluetooth Plug-in