Item Type: Stepper Motor with Driver Stepper Motor: Model: ZT 28HS4522 1501 Step Angle: 1.85% Number of Phase: 2 Phase Rated Voltage: DC2.1V Rated Current Per Phase: 1.5A Motor Driver: Model: SD42 Drive Current: 1.0-4.2A Input Signal Voltage: DC20-50V Input Pulse Frequency: 1-200K(HZ) Input Pulse Width: 250-5E+8(NS) 1GOOD PERFORMANCE: The motor has quick response speed, instantaneous start, rapid stop and good control, the start, stop, and turn over are all completed within a few pulses. 2EXCELLENT ROTOR: The motor rotor is made of excellent silicon steel material, which has large torsion and stable output, low noise and long service life. 3COPPER COIL: All copper coil ensures strong motor power, and 3 layers of polymer coatings can effectively isolate dust and improve motor service life. 4MOTOR DRIVER: With stepper motor driver, the voltage range is DC 20?50V, to control the speed of the stepper motor and achieve accurate positioning. 5EASY INSTALLATION: The stepper motor and driver are compact in structure, easy to install, with reliable operation, and widely used in CNC machine tools.1 x Stepper Motor 1 x Motor Driver