Home Networking

I've been using powerline adapters to extend the internet connection to the second floor of my parents' house. However, yesterday I heard about MoCA and became curious since they appear to be way faster and more stable.

I wanted to know if there are any additional requirements beyond purchasing the adapters themselves. I've come across information about splitters and other accessories, but it seems that those are only necessary when other coaxial ports are in use by different devices (?).

To provide context, the router is located on the first floor, and there's a coaxial connection on the wall. Meanwhile, there's me on the second floor with another coaxial connection in my room. Currently, no one is using these coaxial ports, not even our TV, as we rely on a digital decoder (Ethernet) provided by our ISP.

I'm tempted to buy ScreenBeam's adapters through a proxy since they seem like a good deal, but I am completely unaware of any additional equipment I may need to purchase for the whole setup.

Also, can I connect a layer 2 switch to the MoCA adapter? I have several devices in my room, but I can't afford to buy one MoCA adapter for each of them.