what kind of hdmi cable do i need
1 Look for devices that support 4K functionality. 2  All High Speed HDMI cables will support 4K functionality when connected to 4K devices. 3  You can use your existing High Speed HDMI cables or choose a different cable type. Look for devices that support 4K functionality. 2  All High Speed HDMI cables will support 4K functionality when connected to 4K devices. 3  You can use your existing High Speed HDMI cables or choose a different cable type.