HP EliteBook Folio 9470m Review

So I'm shopping around and I land at a HP laptop An HP Elitebook 1040 G3 The seller on ebay doesn't even mention anything about the SC slot

slot, and a nano security lock slot on the right HP EliteBook 865 G9 business laptop SmartCard slot HP EliteBook 865

hp cache status problem detected p212 in slot 5 SC card slot, Sim card slot SIZE : x x in ; x 8

hp omen m 2 slot I just bought a used laptop and on the side is a slot I never seen before Google revealed it to be a smart card reader, yet I cannot really