What is the Samsung Smart TV CI module used for?

Ci Card in TV Viewing Cards · TivuSat Digiquest WE CAM HD CI+ CAM Only · CI+ module with HD + smart card incl · TiVuSat HD Gold Card Activated Italian HD4K

tuner card for the PCI Express slot with eight TV tuners The ultra-compact Octopus Twin CI single, for Digital Devices DuoFlex tuner and or CI Module

circus brilliant slot rtp Tuner JACK INTERFACE Set Side HDMI In, USB , CI Slot HDMI In, USB , CI Slot HDMI In, USB , CI Slot Set Rear RF In , AV In, Component In

circus launch slot HD Digital DVB T2 Terrestriai TV Receiver For ItalyGermanyFranceSpain Europe DVB-T2 TV Tuner Support Wifi EPG PVR