This item is provided by Crutchfield.com and includes free phone technical support for the life of the product. Details on how to take advantage of this service will be included with your package. Should you have any issues locating information on how to contact Crutchfield Technical Support, please contact this website's Customer Service department. Use these wires to connect low-voltage rack components to the Sanus CAPT01 low-voltage power supply . They eliminate the need for power converters, and help declutter your cabinet. What's in the Box: 1. Two 9' 12-volt DC power wires (each terminated with DC barrel plugs on each end--5.5mm OD / 2.5mm ID)