The HYDROS System Command Bus Cable 6', (measuring 6 feet in length), serves as a dual-purpose DATA & POWER cable, enabling HYDROS devices to efficiently communicate and power other devices within the system. With its 5PIN design, this cable facilitates seamless connectivity, supporting both data transfer and power supply from unit to unit. Enhance the functionality of your HYDROS aquarium system with this reliable and versatile 6-foot System Command Bus Cable.