4K 120M HDMI Extender Cascade Connection
The 4K 120M HDMI extender uses one single cat-5E or cat-6(recommended) cable instead of HDMI cable, you can extend the HDMI1.3-1080P signal to 120 meters or HDMI2.0 4K@60Hz to 60 meters. The purpose of the extender is to achieves long-distance signal transmission with low-cost wires.
HDMI 2.0 4K 60HZ 60M HDMI Extender
By replacing the HDMI cable with a CAT5e or CAT6 cable (recommended), you can extend the HDMI2.0 4K@60Hz signal by 60 meters.