Feature:1. The stepper motor uses advanced technology to reduce noise and can bring you a comfortable feeling.2. This product has been updated, reduced automatic errors caused by the use of reduction gears and improved the accuracy.3. This product uses alloy material, sturdy structure, extremely long life and high quality materials.4. Stepper motor is used in 3D printer, and there are two models stepper motors for you to choose.5. 4234 motor is adapted to for CR10 series Z axis/Ender3 XYZ axis, and 4240 motor is adapted to for CR10 series XYE axis/Ender3 E axis.Specification:Item Type: 3D Print Stepper MotorOptional Model: 42-34, 42-4042-34 Motor: Stepper Motor 2 Phase 0.8ARated Power: 0.05KW.Rated Voltage: 6.7VRated Speed: 500rpmAdapt to for CR-10 series Z axis/Ender-3 XYZ axis42-40 Motor: Stepper Motor 2 Phase 1.0ARated Power: 0.05KWRated Voltage: 6.7VRated Speed: 500rpmAdapt to for CR-10 series XYE axis/Ender-3 E axisPackage List:1 x Motor