HDMI 2.1 cables can have labels like UHD, or 8K on them, but otherwise look the same as any other HDMI cables. Cable Matters Then there’s the fact that no devices support it, yet.

Connect the modulator to the coaxial splitter if required. Select an output channel (e.g. channel 3) and then scan for the TV signal. HDMI moderators are the ideal choice in the latest, ultra-high ...