I have one Netgear router with only 3 available ports . I also have 8 Ethernet devices in 2 different rooms - TV, Apple TV, Receiver, OPPO. How do I effectively wire them up to my one Netgear Router? I don't want to use wireless but want wired Ethernet only. Do I just get a powered or unpowered hub, switch, bridge or what? Unfamiliar with the proper terminology or device to hookup. I would need 2 because there are 4 Home Theater devices in each room. I assume that these 2 devices would send 1 wire each to the Router? Can you link me to the proper type of device for this?