Fiber Optics and Copper wires are the two prominent communication links used in modern communication and play a great role. A lot of articles have been written comparing these two technologies. Each of this communication links has its own advantages and disadvantages over the other. In this paper, both fiber optics and copper are evaluated and compared regarding their advantages and disadvantages based on bandwidth, cost, weight, size and flexibility, signal loss, information capacity, safety and immunity .In today’s modern-world communication demand, having an understanding of how these interconnects and interfaces devices is critical to successful system design.