can I connect my router directly to the internet

[mithunkbk13]

I have a fiber broadband network.the fiber is directly plugger into the port on mother board.I'm planning to get a wireless router.so can I plug the fiber cable to the router and the connect the PC through the lab port. Is it possible

 

[USAFRet]

What do you mean "the fiber is directly plugger into the port on mother board" ?

What does the other end of that wire connect to?