The EMAX ESC 50A 2S–6S Brushless Speed Controller is a high-performance electronic speed controller engineered for multirotor drones and high-thrust UAV applications. Supporting 2S to 6S LiPo batteries, it delivers smooth throttle response, BLHeli firmware compatibility, and robust heat dissipation. Ideal for quadcopters, hexacopters, and brushless drones requiring precision control and stability.