1. Coaxial cable: This type of cable is used for transmitting high-frequency signals, such as those found in cable television and internet connections. It consists of a central conductor surrounded by an insulator, a braided shield, and an outer jacket.

2. Ethernet cable: This is a common type of cable used for networking, connecting computers and other devices within a local area network (LAN). It typically uses twisted-pair wires to transmit data.

3. Fiber optic cable: This type of cable uses thin strands of glass or plastic to transmit data as light pulses. It is used for high-speed internet connections and long-distance telecommunications due to its high bandwidth and low signal loss.