Features: Standard V-lock plate, compatible with V-mount battery, easy to power your photography devices. Provides 4 kinds of voltage: USB 5V / 7.2V / 12V and 14.8V. USB 5V allows you to power 5V devices such as smartphone and mic. 7.2V interface for DSLR camera with 7V-9V voltage output, dummy battery designed for Canon 5D2 / 5D3 camera. 12V interface for monitor or 12V LED light. 14.8V D-tap interface is designed for camcorder with 12V-16.8V voltage output, such as for BMCC and BMPCC. Designed with 15mm rod clamps, support angle adjustment, ideal for kinds of support rail system.