Can a 20m fiber optic cable be used to connect to a 300Mbps router

In most cases, yes, you can use your existing router with fiber optic internet, provided it has a WAN (Wide Area Network) Ethernet port and your ISP provides a modem/ONT with an Ethernet output. This guide dives deep into the maximum length constraints of the three most common network cables—Ethernet, coaxial, and fiber optic—explaining why these limits exist, how they vary by cable type, and how to extend them when needed. This guide covers fiber distance limitations, influencing factors, application-based selection, and technologies that extend optical. Lower-count fiber cables come with 2, 4, 6, or 12 fibers, and higher-count cables come with 24 or more fibers, usually in multiples of 12 ...