I-N7 ingumzila kazwelonke eNingizimu Afrika osuka eKapa ubheke enyakatho udabule izifunda zaseNtshonalanga noNamaqualand uye emngceleni weNamibia eVioolsdrif. "RDDA SOUTH AFRICAN NUMBERED ROUTE DESCRIPTION AND DESTINATION ANALYSIS". NATIONAL DEPARTMENT OF TRANSPORT. May 2012. Kulandwe ngomhlaka 25 March 2021.