This 3A UBEC is a quality switchable voltage regulator from Hobbywing, designed for powering on-board systems. It outputs a stable safe voltage for receivers, gyroscope and servos. It has an output voltage of 5 or 6 Volts (set by a jumper).
Specifications
Input voltage: 2-6S LiPo
Output voltage: Two adjustable 5V/3A or 6V/3A (adjustable by jumper)