These cables transmit communications and optical signals and connect between devices, such as computers and displays. Well-known general applications include image transmission and extending existing cables. Construction and materials vary by application, with differences in transmission quality, durability, etc. The cable construction features conductors coated with insulators, such as nylon, with connectors on both ends. Construction and material details vary by application, with differences in transmission quality, durability, etc. The ends of the cable feature connectors and sockets according to application, such as connectors for motors and solenoid valves, or for image and sensor transmission. The cables feature different characteristics, such as waterproof properties, flex-resistance for fixed applications with oil-resistant specifications, etc., and must be selected according to operating environment.