Samsung QLED 4K Smart TV. Enjoy your picture automatically converted to stunning 4K by the Quantum Processor. Watch the deep blacks and bright whites pop from LED lights directly behind your screen with Direct Full Array • 4 HDMI Connections • Ethernet (LAN) • 1 Digital Audio Out (Optical) • RF In (Terrestrial / Cable input / Satellite Input): 1/1(Common Use for Terrestrial)/0 • 1 Ex-Link ( RS-232C ) • HDMI A / Return Ch. Support • eARC • HDMI Quick Switch • Anynet (HDMI-CEC)