The extra 24 pins give the extra signals needed to route I/O back with the system connector (audio, AC-Backlink, LAN, telephone-line interface). Variety II playing cards have RJ11 and RJ45 mounted connectors. These cards have to be located at the sting of the pc or docking station so the RJ11 https://nathanlabsadvisory.com/iso-27701-privacy-information-management-system-pims/