Indipro B-Stock products may show various signs of use, such as dents or scratches that do not affect product function. All B-Stock items have been quality tested and comes with a 30 day limited warranty. This 20″ 2.1mm to Sony NP-FZ100 type dummy battery allows you to power a Sony a7 Series camera from any power source with a 2.1mm barrel connector input and 7.2 – 8V output. It is an unregulated cable and cannot be used with devices outside the 7.2 – 8V range. The dummy battery end is compatible For Sony Alpha a9 II, a9, a7R IV, a7R III, a7 III, and a6600 cameras. Made in USA.