The DYS XM30A Mini ESC's are a BLHeli 30 amp capable electronic speed controller. These are designed to operate high KV motors and carry the highest current rating of the DYS XM series. As with all the other XM model ESC's, they are designed for quick multi-rotor throttle response with a refresh rate of the throttle signal of up to 500Hz. This is compatible with all modern flight controllers including boards running F3 chips. Features OneShot125 with 3000Hz refresh rate. Also programmable via USB and supports reversing of brushless motors and 3D modes. Motor direction is reversed by switching two wires when connecting the motor to the ESC.