Emax SimonK Series Multirotor 12A Brushless ESC (Electronic Speed Controller) with 2A 5V UBEC comes in 12A and 30A models. 2-3S Small Axis is supported by this 12A Brushless ESC Electronic Governor. To get the ideal driving effect, the Simonk program is optimized. with protection against overheating and low voltage. Additional features on the Power On Self-Test Up to speed: 210000 RPM (2 poles), 70,000 RPM (6 poles); 35000 (12 poles) MCU and BEC separate regulators that enhance anti-jamming performance and are independent of one another. The governor (programming card) or remote settings have the ability to obtain multiple parameters. The throttle range has excellent low-speed performance and can be adjusted to work with various receivers. A brushless DC motor is the Emax SimonK Series Multirotor 30A Brushless ESC (Original).