- 35 -Using additional functionsYou can use the following features on the Source screen.● Connection Guide: Displays device connection instructions.● Universal Remote: Lets you register external devices to your Samsung Smart Remote and control them usingthe Remote." This function may not be supported depending on the model or geographical area." For more information, refer to "Controlling External Devices with the Samsung Smart Remote - Using the UniversalRemote."Connection NotesWhen connecting an external device, note the following." The number of connectors and their names and locations may differ with the model." Refer to the external device's operating manual when connecting it to the TV. The number of external device connectorsand their names and locations may differ with the manufacturer.Connection notes for HDMI● The following types of HDMI cables are recommended:– High-Speed HDMI Cable– High-Speed HDMI Cable with Ethernet● Use an HDMI cable with a thickness of 0.66 inches (17 mm) or less.● Using a non-certified HDMI cable may result in a blank screen or a connection error.● Some HDMI cables and devices may not be compatible with the TV due to different HDMI specifications.● This TV does not support HDMI Ethernet Channel. Ethernet is a Local Area Network (LAN) built with coaxialcables standardized by the IEEE.● Use a cable shorter than 10 feet (3 m) to get the best UHD viewing quality.