Power your SM7-3K, SM7-3K-Z, or SmartCAM Zen using this Matrix 4-Pin to 2-Pin DC Power Cable from SmartSystem. The braided cable provides power from the SmartSystem Intelligent Battery plate's 4-pin AUX power output to the SM7-3K or SM7-3K-Z monitor, or to the SmartCAM Zen digital level indicator. There is a 4-pin locking connector on one end and a 2-pin locking connector on the other end. The cable measures 20" in length and provides between 5 and 20 VDC power, depending on your device.