I used the best modules which were $250 a pair
as well as certified fiber optic it was very quiet but didnot sound natural vs my 2-$1k+ each Ethernet cables and quality Ethernet hub $600 and LPS for the router,no junk wall wart. .I don’t buy any audio from Amazon .
I owned a Audio store for a decade ,and over 45 years as a Audiophiles I know what realism sounds like. If fiber optic was That good most Audiophiles would be using it .that is a Fact !