what is a CI CARD

What goes in the Common Interface slot on the TV ci slot adapter GENUINE ORIGINAL COMMON INTERFACE CARD ADAPTOR CI 5V SAMSUNG LED TV 3709-001791 ; Approx $ + $ shipping ; This one's trending 28 have already sold circuito slot How to attach a Common interface adapter and benefits of using a CAM Module on your TV

cihuy88 slot login adapter since the slot for the module isn't built-in into the TV itself Demonstrated on