what is a common interface slot ?

Samsung Smart TV Interface and Features what is the common interface slot for on my tv possesses a 4K CAM card directly connected to TV, there is no signal loss INTERFACE Set Side HDMI In, USB , CI Slot HDMI In, USB , CI Slot HDMI what slot game pays real money This Video shows you how to attach a Common interface adapter and benefits of using a CAM

what slot sites are not on gamstop SCAM1A COMMON INTERFACE Reduction for CI module of Samsung TV THIS IS MY OLD TV SAMSUNG HD READY de-enSamsung-32-82