Samsung 75" NU7100 Dynamic Crystal Colour Ultra HD certified 4K HDR 1000 Smart TV Connectivity HDMI 3 USB 2 Component In (Y/Pb/Pr) 1 Composite In (AV) 1 (Common Use for Component Y) Ethernet (LAN) Yes Audio Out (Mini Jack) N/A Digital Audio Out (Optical) 1 Ex-Link ( RS-232C ) N/A CI Slot 1 HDMI A / Return Ch. Support Yes HDMI Quick Switch Yes Wireless LAN Adapter Support N/A RF In (Terrestrial / Cable input) 1/1(Common Use for Terrestrial)/0 Wireless LAN Built-in Yes Anynet+ (HDMI-CEC) Yes