Router can only use fiber optic cable
Fiber optic modem (ONT): Most fiber connections require an Optical Network Terminal (ONT), provided by your ISP. Compatible router: Verify that your router supports fiber optic input (look for an SFP or WAN port labeled "ONT" or "Fiber"). org/wiki/Network_interface_device#Optical_network_terminals Some ISP's use ONT's that have integrated routers - its easier for THEM but it gives them more control over. My local internet providers, Indiehome, uses a fiber optic cable and they gave us a free Huawei router, they said it was their standard. But that router kinda have a low security (people can change the access the wifi security since the password and username cannot be changed) and has no ability to. Understanding compatibility, potential limitations, and when an upgrade is necessary will ensure you get the most out of your high-speed connection.
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