The additional 24 pins provide the extra signals required to route I/O again in the procedure connector (audio, AC-Hyperlink, LAN, mobile phone-line interface). Variety II cards have RJ11 and RJ45 mounted connectors. These cards needs to be located at the edge of the computer or docking station so the RJ11 https://nathanlabsadvisory.com/achieve-pci-dss-compliance-in-the-usa-secure-your-business-today/