 Twisted-pair cable  Most common LAN cables (similar to telephone lines)  Consisting of pairs of twisted copper wires - twisted to prevent wires from electromagnetic interference  Transfer rate up to 100 Mbps ~ 1 Gbps  Coaxial cable  Similar to wires used for cable TV  Can be laid underground or underwater for both short (in office) or long distance  Transfer rate up to 1 Gbps ~10 Gbps  Fiber-optic cable  Bundles of hair-thin strands of glass that uses light beams to transmit signals  Faster than coaxial and twisted-pair  Transfer rate approaching 100Gbps 8 Cable Transmission Media Details in reference [1]