MU9000 New connect box for eARC/ 2.1 hdmi?

[eliapado]

Considering that MU9000 has a panel that works at 120 hz, is it necessary to buy a new connect box with eARC/hdmi 2.1 to allow use in 4k 120 hz (for example ps5 / xbox series x)?

[Yair2490]

i want to know to.

[eliapado]

Someone of staff can help me???