yep that makes sense, i know they use RJ45 - that is fine. I will have sfp+ connection with sfp+ rj45 transceiver so router and ONT will be connected via normal RJ45 lan cable. What I want to know is if 5Gbe plan comes with device which will communicate at 10 Gbe speeds locally as those are more compatible and common than 5Gbe
The link between the ONT and gateway will be 10Gbps if your gateway support 10Gbps. Speed will capped at 5Gbps by StarHub for 5Gbps plan.
I did not consider M1 2.5Gbps that time also partially because their ONT does not support 10Gbps link between gateway and ONT. And mine doesnt have or support for 2.5Gbps port