For Sony Alpha a9 II, a9, a7R IV, a7R III, a7 III, a7S III and a6600 Cameras. Key Features: - Connect our V Mount Plate to Your Sony Camera - DC to Dummy Battery Connectivity - 16" Contracted Length - 36" Extended Length - Output Voltage: 8V (Regulated); Output Current: 2A This 1.35 DC To Sony a7S III Dummy Battery NP-FZ100 Cable allows you to power the Sony a7S III series cameras from our V or Gold Mount Battery Plates leaving your D Tap ports open for other accessories. When relaxed, the cable is 16" long and can be easily managed, and it stretches to 36" long when you need the additional length. It plugs into the smallest DC port on the Battery plate and it outputs regulated power at 8V. The power regulator is neatly tucked away in the dummy battery, so it doesn't interfere with the cable.