Active HDMI Cable: The HDMI fiber optic cable is an active HDMI cable, and active HDMI cable meaning that require stable power to work, it needs enough power to work properly
Directional HDMI Cable: The directional HDMI meaning that the source end of HDMI is required to connect to sources, must plug this end to HDMI output from source like DVD, computer, PS5, Xbox..., and another end is display to your monitor, TV, projector
Use the HDMI USB Cable: It comes with in the HDMI box; Why need use this HDMI USB cable; Since some HDMI slots, such as on HUB or on switch or on splitter, cannot provide enough power for the fiber optic HDMI cable
Adjust TV configuration: The majority of 4K TVs that run at 60 Hz may not come with HDMI 2.0 features activated. Once the HDMI cable is installed, you will have to manually enable all HDMI 2.0 features in the TV configuration settings. This will allow your 4K TV to fully support HDR at 60 Hz.
EARC: 1 feet to 100 feet support Audio Return Channel ARC and EARC; And ensure that the source end of the fiber optic HDMI cable is connected to the AVR receiver and the display end is connected to the TV
Change TV settings: Most 4K 120 Hz TVs do not have all the features of HDMI 2.1 enabled; After installing the HDMI cable, you need to enable all HDMI 2.1 features in the TV settings by yourself; Your 4K TV will support 4K 120 Hz