Of course I don't need it, I don't even need 1Gbps but why not do it? I'm searching google for load balancing routers with 3 SFP+ or GPON connections. Maybe I'm doing something wrong. After I order my connections I will have 3 cables who aren't RJ45 cables. They are really thin and with an elongated connector. I'm not sure if they are SFP+ or GPON.
Even if I only increase my bandwidth I still want to do it. But I really don't know what to get in order to make it work.