SmallRig DC5521 to NP-FZ100 Dummy Battery Charging Cable 2922 is compatible with Sony Alpha a9 II, a9, a7R IV, a7R III, a7 III, and a6600 Cameras, designed for use with the SmallRig NP-F Battery Plate EB2504. It plugs into the FZ100 battery-powered camera at one end and connects to the battery plate via the 5.5/2.1mm (0.22/0.08in) DC male connector. The total length is 60cm (23.62in).