SmallRig V Mount Battery Adapter Plate with Adjustable Arm 3204 is designed to provide greater battery life to your camera rig via a V mount battery. The plate utilizing a standard V mount fits most V mount batteries. It gives an 8V DC output port, two 12V DC output ports, a 14.8V D-Tap output port, and a 5V/2A USB output port to power your camera and other external accessories like a monitor, a phone, etc. via a V mount battery. It features a power switch that controls all of the output ports to power-on or power-off your rig more quickly and conveniently. It comes with a dual 15mm rod clamp to help mount the plate to your 15mm LWS rod system, and an adjustable arm for quick adjustment of the V mount battery position.