Underwater robots are used for underwater exploration. These small robots are unmanned and remote controlled by an outside host. IEEE1394 cameras have been implemented on underwater robots for high-speed image capturing. The high data transfer rate of IEEE1394 cables allow the cameras to run at higher frame rates for best picture quality. Newnex IEEE1394 repeaters can break the 4.5-meter length limit of 1394 cable and extend the length the cameras can reach underwater, enabling the underwater robots to transmit video or images to the host from greater distances.