The DJI Naza M PMU V2 for Phantom Fly with H3-2D is a compact power management unit (PMU) that features enhanced BEC functionality and extendable CAN BUS ports. It can be used as an independent PMU for the DJI Zenmuse H3-2D brushless gimbal when used with your DJI Phantom quadcopter. However, if you already have the DJI Phantom Upgrade Kit for Zenmuse H3-2D installed in your Phantom quadcopter, then this Naza M PMU V2 is not required to use the gimbal with your Phantom quadcopter. The PMU's extendable CAN BUS ports will support the Zenmuse H3-2D gimbal pitch control function as well. Plus, it will also work with the optional DJI iOSD for collecting real-time flight data and the optional Bluetooth LED module. That means you'll be able adjust parameters at any time via a mobile app on your smartphone or tablet.