What am I missing in order to get the moca adapters to work?

Hi everyone,i'm a completely newbie and doesn't understand this - but can anyone tell me what I need in order to feed my coax outlets with data?

Internet coax goes to modem, modem should go to the moca adapter and then moca adapter should connect to the 3 cables (TAP4, TAP3 and TAP2) ?

I bought 2 of this MoCa adapter: https://www.amazon.com/goCoax-Ethernet-Bandwidth-existing-MA2500D/dp/B08XP8MMFG?th=1 Best regards