Which is better a main router sub-router or fiber optic cable

Routers and fiber optic cables serve different purposes: routers manage network traffic, while fiber provides the fastest, most reliable data transmission; they work together rather than compete.Understanding the RolesRouters are devices that direct data traffic between your local network and the internet. They handle packet forwarding, assign IP addresses via DHCP, provide security through firewalls, and manage multiple devices on a network . A main router with sub-routers (or mesh systems) can improve coverage and manage traffic efficiently across large areas. Fiber optic cables, on the other hand, are the physical medium that transmits data as pulses of light, offering extremely high speeds, low latency, and stable connections over long distances . Fiber is superior to traditional copper or coaxial cables in terms of bandwidth, reliability, and resistance to interference .Key DifferencesFunction: Routers direct traffic; fiber carries the data. They are complementary, not interchangeable .Speed and Performance: Fiber supports ultra-fast speeds (up to 10 Gbps+), while routers must be capable of handling these speeds to avoid bottlenecks .Reliability: Fiber is less prone to outages and signal degradation compared to copper-based connections, making it ideal for high-demand applications like streaming, gaming, and cloud work .Security: Fiber is harder to tap into than copper, and fiber routers often include advanced security features .Cost: Fiber installation is more expensive upfront, and fiber routers are typically pricier than standard routers, but the long-term performance and reliability often justify the investment .Practical RecommendationFor optimal network performance, use fiber optic cables for your internet connection and pair them with a high-quality main router and sub-routers if needed for coverage. Fiber ensures fast, stable data transmission, while routers manage traffic efficiently across devices. Choosing a router that supports gigabit speeds is essential to fully leverage fiber's capabilities . In summary, fiber optic cables provide the superior backbone for speed and reliability, while a main router/sub-router setup ensures efficient traffic management and coverage. Both are necessary for a high-performance network.