Yes, you can use your own router with fiber internet, as long as it has a Gigabit Ethernet WAN port to connect to your ISP's Optical Network Terminal. Upgrading to a Wi-Fi 6 or 6E router helps you get the full benefit of symmetrical fiber speeds. This guide will break down everything you. A fiber optic media converter is a networking device that converts data signals from one type of media to another. In most cases, they are used to connect twisted pair or coaxial cable to a fiber-optic cable, allowing the interconnection of fiber-optic networks and cable systems with copper-based cabling systems., Cat5e or Cat6) and fiber optics. However, many are not so familiar with media conversion or fiber.