The 2-Wire Motor 393 is the primary actuator used in the VEX EDR. Build rotational mechanisms, drive bases, rotational joints, conveyor belts - anything that spins can be built using the 2-wire Motor 393. The 2 Wire Motor 393 provides 60% more output power than the standard motor, which allows for more powerful mechanisms and drive bases. Strong, steel internal gears. Can be configured into a "high speed" version. The 2-Wire Motor 393 does not have an internal motor controller. The motor connects directly to 2-Wire Motor Ports (Ports 1 & 10 on the Cortex Microcontroller). For 3-Wire Motor Ports (Ports 2-9 on the Cortex), a Motor Controller 29 must be used in between the Microcontroller and the motor.