The additional 24 pins supply the extra signals necessary to route I/O again with the system connector (audio, AC-Hyperlink, LAN, phone-line interface). Sort II cards have RJ11 and RJ45 mounted connectors. These cards has to be Situated at the sting of the pc or docking station so which the RJ11 https://nathanlabsadvisory.com/irs-efile-2/